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1. Can we infer the percolation status of 3D fractured media from 2D outcrops?

Author:
Weiwei Zhu; Gang Lei; Xupeng He; Yafan Yang; Ryan Kurniawan Santoso; Moran Wang
Source:
Engineering geology 2022 v.302 pp. 106648
ISSN:
0013-7952
Subject:
base maps; engineering; engineers; fluids; geology; geometry; permeability; prediction
Abstract:
... Fractures and their connectivity are essential for fluid flow in low permeability formations. Geological outcrops can only provide two-dimensional (2D) information, but subsurface fractures are three-dimensional (3D). The percolation status of 3D fracture networks and their 2D cross-section maps are rarely investigated simultaneously. In this work, we construct 3D fracture networks with their geom ...
DOI:
10.1016/j.enggeo.2022.106648

2. Redefining and mapping global irreplaceability

Author:
Daniele Baisero; Richard Schuster; Andrew J. Plumptre
Source:
Conservation biology 2022 v.36 no.2 pp. e13806
ISSN:
0888-8892
Subject:
base maps; biodiversity; design; extinction; methodology; surfaces; vertebrates; wildlife management; wills
Abstract:
... Irreplaceability is a concept used to describe how close a site is to being essential for achieving conservation targets. Current methods for measuring irreplaceability are based on representative combinations of sites, giving them an extrinsic nature and exponential computational requirements. Surrogate measures based on efficiency (complementarity) are often used as alternatives, but they were n ...
DOI:
10.1111/cobi.13806

3. Multiple-feature-driven co-training method for crop mapping based on remote sensing time series imagery

Author:
Duo Jia; Peichao Gao; Changxiu Cheng; Sijing Ye
Source:
International journal of remote sensing 2020 v.41 no.20 pp. 8096-8120
ISSN:
1366-5901
Subject:
algorithms; area; artificial intelligence; base maps; crops; journals; learning; problem solving; remote sensing; sampling; tiles; time series analysis; United States
Abstract:
... Remote sensing time series imagery (RSTSI) provides a useful tool for crop mapping, as it provides crucial spectral, temporal, and spatial (STS) features. However, its high dimensionality coupled with the limited number of training samples leads to an ill-posed classification problem and the Hughes phenomenon. To solve this problem, this study presents a multiple-feature-driven co-training method ...
DOI:
10.1080/01431161.2020.1771790

4. A scalable speech coding scheme using compressive sensing and orthogonal mapping based vector quantization

Author:
M.S. Arun Sankar; P.S. Sathidevi
Source:
Heliyon 2019 v.5 no.5 pp. e01820
ISSN:
2405-8440
Subject:
base maps; biting rates; design; filters; measurement; speech
Abstract:
... A novel scalable speech coding scheme based on Compressive Sensing (CS), which can operate at bit rates from 3.275 to 7.275 kbps is designed and implemented in this paper. The CS based speech coding offers the benefit of combined compression and encryption with inherent de-noising and bit rate scalability. The non-stationary nature of speech signal causes the recovery process from CS measurements ...
DOI:
10.1016/j.heliyon.2019.e01820
PubMed:
31193755
PubMed Central:
PMC6541890

5. Chronology of the Basalt Units Surrounding Chang’e-4 Landing Area

Author:
Zongyu Yue; Ke Shi; Gregory Michael; Kaichang Di; Sheng Gou; Jianzhong Liu; Shengli Niu
Source:
Remote Sensing 2021 v.14 no.1 pp. -
ISSN:
2072-4292
Subject:
age; area; basalt; base maps; image analysis; land; models; remote sensing; sampling; spacecraft; surfaces; wills
Abstract:
... The Chang’e-4 (CE-4) lunar probe, the first soft landing spacecraft on the far side of the Moon, successfully landed in the Von Kármán crater on 3 January 2019. Geological studies of the landing area have been conducted and more intensive studies will be carried out with the in situ measured data. The chronological study of the maria basalt surrounding the CE-4 landing area is significant to the r ...
DOI:
10.3390/rs14010049

6. Interpolation sub-pixel mapping based on multiple subpixel shifted images based on a consideration of the point spread function effect

Author:
Peng Wang; Zhongchen He; Cai Li; Shuaipeng Ye; Kun Wang; Jiale Zhao
Source:
Remote sensing letters 2021 v.12 no.11 pp. 1147-1157
ISSN:
2150-7058
Subject:
base maps; exhibitions; filters; image analysis; kriging; models; remote sensing
Abstract:
... In this paper, the interpolation sub-pixel mapping (ISM) based on multiple sub-pixel shifted images (MSSIs) based on a consideration of the point spread function (PSF) effect, named as MSSI-PSF, is proposed. In the proposed MSSI-PSF, MSSIs are first unmixed to produce the coarse fractional images. Second, under considering the PSF effect, the improved coarse fractional images are obtained by apply ...
DOI:
10.1080/2150704X.2021.1968062

7. The Effects of Topographic Map Scale and Costs of Land Surveying on Geometric Model and Flood Inundation Mapping

Author:
Asghar Azizian
Source:
Water resources management 2019 v.33 no.4 pp. 1315-1333
ISSN:
0920-4741
Subject:
base maps; cost effectiveness; data collection; developing countries; floodplains; geometry; land surveying; landscapes; models; prediction; rivers; statistics; stream channels; surveys; topographic maps; topography; Iran
Abstract:
... The quality of topographic datasets plays a key role in deriving terrain model and hydraulic simulation. In developing countries, data-sparse regions and most parts of the world, accessing to high-quality datasets is almost impossible and topographic maps with a specific scale should be used to derive the geometry of river bed and floodplains. For these areas, understanding the effects of map scal ...
DOI:
10.1007/s11269-019-2202-y

8. The impact of landscape characteristics on the performance of upscaled maps

Author:
Peijun Sun; Russell G. Congalton
Source:
Geocarto international 2021 v.36 no.17 pp. 1905-1922
ISSN:
1752-0762
Subject:
algorithms; base maps; landscapes; landscaping
Abstract:
... Upscaled maps, as necessary data sources, have drawn much attention to fill data gaps or match the spatial resolution of pre-existing projects. Nevertheless, it remains a challenging task to quantitatively assess the impact of landscape characteristics on the upscaled maps. To simplify the investigation, three characteristics: fragmentation, number of classes and major class impact factor (MCIF), ...
DOI:
10.1080/10106049.2019.1678681
CHORUS:
10.1080/10106049.2019.1678681

9. A Multi-Scale Representation of Point-of-Interest (POI) Features in Indoor Map Visualization

Author:
Yi Xiao; Tinghua Ai; Min Yang; Xiang Zhang
Source:
ISPRS international journal of geo-information 2020 v.9 no.4 pp. -
ISSN:
2220-9964
Subject:
base maps; buildings; color; floors; gender; information services; journals; methodology; spatial data
Abstract:
... As a result of the increasing popularity of indoor activities, many facilities and services are provided inside buildings; hence, there is a need to visualize points-of-interest (POIs) that can describe these indoor service facilities on indoor maps. Over the last few years, indoor mapping has been a rapidly developing area, with the emergence of many forms of indoor representation. In the design ...
DOI:
10.3390/ijgi9040239

10. A scoping review of co-production between researchers and journalists in research communication

Author:
Stephen MacGregor; Amanda Cooper; Andrew Coombs; Christopher DeLuca
Source:
Heliyon 2020 v.6 no.9 pp. e04836
ISSN:
2405-8440
Subject:
area; base maps; government and administration; journalists; publications; researchers; sustainability science and engineering
Abstract:
... Co-production is rapidly gaining purchase as an approach to making research matter more to diverse audiences. There exists a wealth of information about co-production in areas such as public administration and sustainability science, but comparatively little within the specific area of research communication. In particular, little is known about harnessing the potential of researchers and journali ...
DOI:
10.1016/j.heliyon.2020.e04836

11. An Efficient Graph-Based Spatio-Temporal Indexing Method for Task-Oriented Multi-Modal Scene Data Organization

Author:
Bin Feng; Qing Zhu; Mingwei Liu; Yun Li; Junxiao Zhang; Xiao Fu; Yan Zhou; Maosu Li; Huagui He; Weijun Yang
Source:
ISPRS international journal of geo-information 2018 v.7 no.9 pp. -
ISSN:
2220-9964
Subject:
base maps; computer software; databases; geographic information systems; georeferencing
Abstract:
... Task-oriented scene data in big data and cloud environments of a smart city that must be time-critically processed are dynamic and associated with increasing complexities and heterogeneities. Existing hybrid tree-based external indexing methods are input/output (I/O)-intensive, query schema-fixed, and difficult when representing the complex relationships of real-time multi-modal scene data; specif ...
DOI:
10.3390/ijgi7090371

12. Historical Geomorphological Research of a Ligurian Coastal Floodplain (Italy) and Its Value for Management of Flood Risk and Environmental Sustainability

Author:
Anna Roccati; Fabio Luino; Laura Turconi; Pietro Piana; Charles Watkins; Francesco Faccini
Source:
Sustainability 2018 v.10 no.10 pp. -
ISSN:
2071-1050
Subject:
aerial photography; agricultural land; alluvial plains; anthropogenic activities; base maps; channelization; coastal plains; environmental sustainability; floodplains; floods; geographic information systems; georeferencing; land use change; landscapes; quantitative analysis; risk; risk reduction; rivers; urbanization; Italy
Abstract:
... The alluvial plain of the Entella River (Eastern Liguria), historically affected by damaging flood events, has been heavily modified over the past 250 years by human activity and natural processes. A qualitative and quantitative analysis of the morphological and land use evolution of the Entella floodplain since the 18th century was carried out using base maps and aerial photos ranging from 1758 t ...
DOI:
10.3390/su10103727

13. Innovative Remote Sensing Methodologies for Kenyan Land Tenure Mapping

Author:
Mila Koeva; Claudia Stöcker; Sophie Crommelinck; Serene Ho; Malumbo Chipofya; Jan Sahib; Rohan Bennett; Jaap Zevenbergen; George Vosselman; Christiaan Lemmen; Joep Crompvoets; Ine Buntinx; Gordon Wayumba; Robert Wayumba; Peter Ochieng Odwe; George Ted Osewe; Beatrice Chika; Valerie Pattyn
Source:
Remote Sensing 2020 v.12 no.2 pp. -
ISSN:
2072-4292
Subject:
United Nations; base maps; data collection; governance; land management; land rights; land tenure; poverty; remote sensing; sustainable development; unmanned aerial vehicles; Kenya
Abstract:
... There exists a demand for effective land administration systems that can support the protection of unrecorded land rights, thereby assisting to reduce poverty and support national development—in alignment with target 1.4 of UN Sustainable Development Goals (SDGs). It is estimated that only 30% of the world’s population has documented land rights recorded within a formal land administration system. ...
DOI:
10.3390/rs12020273

14. Multi-Criteria Land Evaluation of Suitability for the Sport of Foot Orienteering: A Case Study of Croatia and Slovenia

Author:
Dražen Tutić; Matjaž Štanfel; Martina Triplat Horvat
Source:
ISPRS international journal of geo-information 2018 v.7 no.6 pp. -
ISSN:
2220-9964
Subject:
algorithms; automation; base maps; case studies; data collection; digital elevation models; expert opinion; geographic information systems; geomorphology; land cover; land evaluation; landscapes; sports; Croatia; Slovenia
Abstract:
... This paper describes a new multi-criteria land evaluation method, based on geomorphology and land cover, for the automated detection of suitable terrain for the sport of foot orienteering (footO). Reference data, in the form of areas already mapped and used for footO, was used to define criteria for geomorphology and land cover, and represents an expert knowledge component. The motivation for this ...
DOI:
10.3390/ijgi7060227

15. Multispectral image fusion based on map estimation with improved detail

Author:
Arian Azarang; Nasser Kehtarnavaz
Source:
Remote sensing letters 2020 v.11 no.8 pp. 797-806
ISSN:
2150-7058
Subject:
base maps; case studies; data collection; multispectral imagery; objectives; remote sensing
Abstract:
... This paper presents a multispectral image fusion method for remote sensing applications by using an improved estimation of detail maps. This estimation is achieved by considering a linear combination of the other MultiSpectral (MS) bands as well as their joint multiplications. A comparison with seven existing methods is carried out based on three public domain datasets and by considering commonly ...
DOI:
10.1080/2150704X.2020.1773004

16. An integrated coastal zone observatory at municipal level: the case of Kavala Municipality, NE Greece

Author:
V. Kalpakis; N. Kokkos; V. Pisinaras; G. Sylaios
Source:
Journal of coastal conservation 2019 v.23 no.1 pp. 149-162
ISSN:
1400-0350
Subject:
base maps; citizen participation; climate change; coastal zone management; coasts; data collection; decision making; eutrophication; farmers; geographic information systems; hydrodynamics; hydrology; issues and policy; models; mussels; rural planning; socioeconomics; stakeholders; topography; Greece
Abstract:
... The Integrated Coastal Zone Management (ICZM) Observatory of Kavala Municipality has been developed during the Mare Nostrum Project following the well-known DPSIR concept (Drivers, Pressures, States, Impacts and Responses). The Observatory aims to aid the day-to-day operations of the Municipality, collecting, analyzing and processing historic, present and forecasted environmental, socio-economic a ...
DOI:
10.1007/s11852-018-0646-5

17. Assessment of rehabilitation projects results of a gold mine area using landscape function analysis

Author:
Bruno Stefan De Simoni; Mariangela Garcia Praça Leite
Source:
Applied geography 2019 v.108 pp. 22-29
ISSN:
0143-6228
Subject:
base maps; decision making; drainage; gold; landscapes; mining; monitoring; soil structure; spatial data; stakeholders; vegetation; wastes
Abstract:
... Mining activity is indispensable for the current stage of progress of our civilization. Although it is a temporary activity, its impacts are remarkable, especially with respect to landscape modifications. To mitigate such impacts, the implementation of monitored environmental recovery projects is of fundamental importance. Landscape Function Analysis (LFA) is a multicriteria analysis using remote ...
DOI:
10.1016/j.apgeog.2019.05.005

18. Assessment of the risks of N–loss to groundwater from data on N–balance surplus in Spanish crops: An empirical basis to identify Nitrate Vulnerable Zones

Author:
Mercedes Arauzo; Gema García; María Valladolid
Source:
Science of the total environment 2019 v.696 pp. 133713
ISSN:
0048-9697
Subject:
alluvial aquifer; base maps; crops; groundwater; land use; models; nitrates; pollution; risk; rivers; watersheds; Spain
Abstract:
... The aim of this research was to conduct an empirical assessment of the risks of N–loss to groundwater associated with land use (LU), based on annual data on the net N–balance surplus in Spanish crops. These data were used to generate a detailed risk rating system reflecting the potential risks of N–loss from agriculture. The new LU ratings were used to assess the specific vulnerability of groundwa ...
DOI:
10.1016/j.scitotenv.2019.133713

19. Current status of insecticide resistance among malaria vectors in Kenya

Author:
Benyl M. Ondeto; Christopher Nyundo; Luna Kamau; Simon M. Muriu; Joseph M. Mwangangi; Kiambo Njagi; Evan M. Mathenge; Horace Ochanda; Charles M. Mbogo
Source:
Parasites & vectors 2017 v.10 no.1 pp. 429
ISSN:
1756-3305
Subject:
Anopheles gambiae; base maps; carbamates; carboxylesterase; computer software; control methods; databases; geographic information systems; glutathione transferase; insect vectors; insecticide resistance; insecticides; issues and policy; malaria; mutation; organophosphorus compounds; pyrethrins; research institutions; resistance mechanisms; vector control; Kenya
Abstract:
... BACKGROUND: Insecticide resistance has emerged as one of the major challenges facing National Malaria Control Programmes in Africa. A well-coordinated national database on insecticide resistance (IRBase) can facilitate the development of effective strategies for managing insecticide resistance and sustaining the effectiveness of chemical-based vector control measures. The aim of this study was to ...
DOI:
10.1186/s13071-017-2361-8
PubMed:
28927428
PubMed Central:
PMC5606043

20. Capturing Flood Risk Perception via Sketch Maps

Author:
Carolin Klonner; Tomás J. Usón; Sabrina Marx; Franz-Benjamin Mocnik; Bernhard Höfle
Source:
ISPRS international journal of geo-information 2018 v.7 no.9 pp. -
ISSN:
2220-9964
Subject:
base maps; case studies; disaster preparedness; floods; questionnaires; risk perception; surveys; Chile
Abstract:
... The fact that an increasing number of people and local authorities are affected by natural hazards, especially floods, highlights the necessity of adequate mitigation and preparedness within disaster management. Many governments, though, have only insufficient monetary or technological capacities. One possible approach to tackle these issues is the acquisition of information by sketch maps complem ...
DOI:
10.3390/ijgi7090359

21. Does base map size and imagery matter in sketch mapping?

Author:
Nicola Sloan; Bruce Doran; Francis Markham; Kristen Pammer
Source:
Applied geography 2016 v.71 pp. 24-31
ISSN:
0143-6228
Subject:
avoidance behavior; base maps; college students; data collection; experimental design; geography; spatial data
Abstract:
... Sketch mapping has been an important data collection technique for geographers since the 1960s. Structured sketch mapping requires participants to draw spatial data onto a base map containing cartographic information, in order to assist with spatial referencing. A concern that base map characteristics may influence sketch map content has been raised repeatedly in the research literature. However l ...
DOI:
10.1016/j.apgeog.2016.04.001

22. Ocean fronts construct spatial zonation in microfossil assemblages

Author:
Dongyan Liu; Yanna Wang; Yueqi Wang; John K. Keesing
Source:
Global ecology and biogeography 2018 v.27 no.10 pp. 1225-1237
ISSN:
1466-822X
Subject:
Bacillariophyceae; Miozoa; base maps; correspondence analysis; indicator species; marine ecosystems; microfossils; nutrients; paleoecology; phytoplankton; salinity; satellites; sediments; surface water temperature; China
Abstract:
... AIM: Integration of macroecology and palaeoecology is an important trend in understanding rapidly changing marine ecosystems. However, the spatial mismatch between these two data types has led to difficulties in interpretation, particularly for short‐lived phytoplankton and their microfossils. Fronts are narrow transition zones between distinct water masses and play an essential role in partitioni ...
DOI:
10.1111/geb.12779

23. Pallid sturgeon larvae: The drift dispersion hypothesis

Author:
B. L. Marotz; M. S. Lorang
Source:
Journal of applied ichthyology 2018 v.34 no.2 pp. 373-381
ISSN:
0175-8659
Subject:
Scaphirhynchus albus; base maps; habitats; larvae; models; reproduction; rivers; spawning; Missouri River; Montana
Abstract:
... The fate of drifting pallid sturgeon larvae [Scaphirhynchus albus, Forbes and Richardson, 1905] from spawning in the Missouri River below Fort Peck Dam, Montana, USA remains in question. Previous estimates of drift duration used flow modeling and experimental releases of free embryo pallid sturgeon that were recaptured in nets at incremental distances downstream. The recapture studies hypothesized ...
DOI:
10.1111/jai.13569

24. Soil maps in national and specialized atlases (analytical review)

Author:
M.I. Gerasimova; M.D. Bogdanova
Source:
Annals of Agrarian Science 2016 v.14 no.2 pp. 76-81
ISSN:
1512-1887
Subject:
base maps; ecological function; soil analysis; soil map; soil properties; Africa; Azerbaijan; Latin America; Russia
Abstract:
... An analysis of soil maps, base and soil-related ones, in the national and special soil atlases published in the last 25–30 years was performed. These were atlases of thirty countries, few ecological atlases and soil atlases of Europe, Africa, Latin America, Azerbaijan, and Russia. All atlases contain base maps, complementary maps of soil properties and regimes, as well as maps compiled for agricul ...
DOI:
10.1016/j.aasci.2016.05.006

25. Task-Oriented Visualization Approaches for Landscape and Urban Change Analysis

Author:
Jochen Schiewe
Source:
ISPRS international journal of geo-information 2018 v.7 no.8 pp. -
ISSN:
2220-9964
Subject:
base maps; computer graphics; data analysis; georeferencing; image analysis; landscapes; urbanization
Abstract:
... Approaches to landscape and urban change analysis are still far away from being fully automatic or operational. For this reason, the concept of Geovisual Analytics is proposed, combining computational and visual/manual processing steps. This contribution concentrates on the latter part with the overall goal of improving its usability. For this purpose, a classification of tasks is created, which o ...
DOI:
10.3390/ijgi7080288

26. An Approach for Indoor Path Computation among Obstacles that Considers User Dimension

Author:
Liu Liu; Sisi Zlatanova
Source:
ISPRS international journal of geo-information 2015 v.4 no.4 pp. 2821-2841
ISSN:
2220-9964
Subject:
base maps; computer-aided mapping; geometry
Abstract:
... People often transport objects within indoor environments, who need enough space for the motion. In such cases, the accessibility of indoor spaces relies on the dimensions, which includes a person and her/his operated objects. This paper proposes a new approach to avoid obstacles and compute indoor paths with respect to the user dimension. The approach excludes inaccessible spaces for a user in fi ...
DOI:
10.3390/ijgi4042821

27. Evolving Spatial Data Infrastructures and the Role of Adaptive Governance

Author:
Jaap-Willem Sjoukema; Arnold Bregt; Joep Crompvoets
Source:
ISPRS international journal of geo-information 2017 v.6 no.8 pp. -
ISSN:
2220-9964
Subject:
base maps; governance; industry; infrastructure; models; spatial data; stakeholders; Belgium; Netherlands
Abstract:
... Spatial data infrastructures (SDIs) are becoming more mature worldwide. However, despite this growing maturity, longitudinal research on the governance of SDIs is rare. The current research examines the governance history of two SDIs in the Netherlands and Flanders (Belgium). Both represent decades-long undertakings to create a large-scale base map. During these processes, SDI governance changed, ...
DOI:
10.3390/ijgi6080254

28. Modeling the stability of terraced slopes: an approach from Valtellina (Northern Italy)

Author:
Corrado Camera; Tiziana Apuani; Marco Masetti
Source:
Environmental earth sciences 2015 v.74 no.1 pp. 855-868
ISSN:
1866-6280
Subject:
base maps; digital elevation models; hydrology; landslides; rain; reliability; soil depth; terraces; terracing; villages; Italy
Abstract:
... This study focuses on the relationships between hydrological processes and the stability of terraced slopes. Emphasis is given to the presence of dry-stone retaining walls and how to explicitly consider them when performing a distributed stability analysis. Valtellina, an Alpine valley of Northern Italy, is selected as study area. In detail, the slope uphill the village of Tresenda, affected by se ...
DOI:
10.1007/s12665-015-4089-0

29. Spatial downscaling of soil prediction models based on weighted generalized additive models in smallholder farm settings

Author:
Yiming Xu; Scot E. Smith; Sabine Grunwald; Amr Abd-Elrahman; Suhas P. Wani; Vimala D. Nair
Source:
Environmental monitoring and assessment 2017 v.189 no.10 pp. 502
ISSN:
0167-6369
Subject:
base maps; exchangeable potassium; farmers; food security; models; nitrogen content; prediction; small farms; soil properties; soil surveys; villages; India
Abstract:
... Digital soil mapping (DSM) is gaining momentum as a technique to help smallholder farmers secure soil security and food security in developing regions. However, communications of the digital soil mapping information between diverse audiences become problematic due to the inconsistent scale of DSM information. Spatial downscaling can make use of accessible soil information at relatively coarse spat ...
DOI:
10.1007/s10661-017-6212-z

30. Distance to faults as a proxy for radon gas concentration in dwellings

Author:
Jean-Philippe Drolet; Richard Martel
Source:
Journal of environmental radioactivity 2016 v.152 pp. 8-15
ISSN:
0265-931X
Subject:
analysis of variance; base maps; bedrock; data collection; guidelines; radioactivity; radon; risk
Abstract:
... This research was done to demonstrate the usefulness of the local structural geology characteristics to predict indoor radon concentrations. The presence of geologic faults near dwellings increases the vulnerability of the dwellings to elevated indoor radon by providing favorable pathways from the source uranium-rich bedrock units to the surface. Kruskal–Wallis one-way analyses of variance by rank ...
DOI:
10.1016/j.jenvrad.2015.10.023

31. How good is the map? A multi-scale cross-comparison framework for global settlement layers: Evidence from Central Europe

Author:
M. Klotz; T. Kemper; C. Geiß; T. Esch; H. Taubenböck
Source:
Remote sensing of environment 2016 v.178 pp. 191-212
ISSN:
0034-4257
Subject:
base maps; human settlements; landscapes; radar; remote sensing; value added; Central European region
Abstract:
... Mapping of settlement areas from space is entering a new era. With the recently developed Global Urban Footprint (based on radar data from TanDEM-X) and the Global Human Settlement Layer (based on optical data), two new initiatives that promise to map complex settlement patterns at global scales and unprecedented spatial resolutions are about to enter the scientific and map user community. However ...
DOI:
10.1016/j.rse.2016.03.001

32. The historical role of base maps in soil geography

Author:
B.A. Miller; R.J. Schaetzl
Source:
Geoderma 2014 v.230-231 pp. 329-339
ISSN:
0016-7061
Subject:
aerial photography; base maps; geographic information systems; geography; global positioning systems; models; prediction; soil map; soil properties; soil surveys
Abstract:
... Soil mapping is a major goal of soil science. Soil maps rely upon accurate base maps, both for positional reference and to provide environmental data that can assist in the prediction of soil properties. This paper reviews the historical development of base maps used for soil mapping, and evaluates the dependence of soil mapping on base maps. The availability of geographic technology for producing ...
DOI:
10.1016/j.geoderma.2014.04.020

33. A web-based, relational database for studying glaciers in the Italian Alps

Author:
G. Nigrelli; M. Chiarle; A. Nuzzi; L. Perotti; G. Torta; M. Giardino
Source:
Computers & geosciences 2013 v.51 no. pp. 101-107
ISSN:
0098-3004
Subject:
inventories; computers; vector data; base maps; glaciers; climate change; remote sensing; computer software; Internet; databases; Italy; Alps region
Abstract:
... Glaciers are among the best terrestrial indicators of climate change and thus glacier inventories have attracted a growing, worldwide interest in recent years. In Italy, the first official glacier inventory was completed in 1925 and 774 glacial bodies were identified. As the amount of data continues to increase, and new techniques become available, there is a growing demand for computer tools that ...
DOI:
10.1016/j.cageo.2012.07.027

34. Above-Ground Biomass and Biomass Components Estimation Using LiDAR Data in a Coniferous Forest

Author:
Qisheng He; Erxue Chen; Ru An; Yong Li
Source:
Forests 2013 v.4 no.4 pp. 984-1002
ISSN:
1999-4907
Subject:
Picea crassifolia; aboveground biomass; base maps; coniferous forests; equations; fruits; inventories; leaves; lidar; regression analysis; trees; China
Abstract:
... This study aims to estimate forest above-ground biomass and biomass components in a stand of Picea crassifolia (a coniferous tree) located on Qilian Mountain, western China via low density small-footprint airborne LiDAR data. LiDAR points were first classified into ground points and vegetation points. After, vegetation statistics, including height quantiles, mean height, and fractional cover were ...
DOI:
10.3390/f4040984

35. Automatic cloud-shadow removal from flood/standing water maps using MSG/SEVIRI imagery

Author:
Sanmei Li; Donglian Sun; Yunyue Yu
Source:
International journal of remote sensing 2013 v.34 no.15 pp. 5487-5502
ISSN:
1366-5901
Subject:
automation; base maps; cloud cover; flooded conditions; floods; image analysis; remote sensing; shade; spectral analysis
Abstract:
... Cloud shadows are a major problem in the detection of flood/standing water using satellite data. Because cloud shadows and flood/standing water have similar spectral characteristics, the traditional means of detection based on spectral properties may fail to distinguish them from each other accurately. Because clouds cast shadows over land, this phenomenon can be analysed using the geometric corre ...
DOI:
10.1080/01431161.2013.792969

36. Can Perceptions of Environmental and Climate Change in Island Communities Assist in Adaptation Planning Locally?

Author:
Shankar Aswani; Ismael Vaccaro; Kirsten Abernethy; Simon Albert; Javier Fernández-López de Pablo
Source:
Environmental management 2015 v.56 no.6 pp. 1487-1501
ISSN:
0364-152X
Subject:
base maps; climate change; databases; ecosystems; geographic information systems; harvesting; logging; people; planning; population; spatial data; tropics; water quality; Solomon Islands
Abstract:
... Local perceptions of environmental and climate change, as well as associated adaptations made by local populations, are fundamental for designing comprehensive and inclusive mitigation and adaptation plans both locally and nationally. In this paper, we analyze people’s perceptions of environmental and climate-related transformations in communities across the Western Solomon Islands through ethnogr ...
DOI:
10.1007/s00267-015-0572-3

37. Digital Classification of Hillslope Position

Author:
Bradley A. Miller; Randall J. Schaetzl
Source:
Soil Science Society of America journal 2015 v.79 no.1 pp. 132-145
ISSN:
0361-5995
Subject:
base maps; decision support systems; fuzzy logic; landscapes; prediction; soil; soil map; soil surveys; topographic slope; toposequences
Abstract:
... Hillslope position has long been important in soil geomorphology. At the scale of county-level soil maps, more soil boundaries are based on topography than any other soil-forming factor. However, the inability to accurately delineate topographic breaks across hillslopes—either due to lack of sufficient topographic resolution or the proper technology to develop and/or model them—hinders soil mappin ...
DOI:
10.2136/sssaj2014.07.0287

38. GeoEye-1 and WorldView-2 pan-sharpened imagery for object-based classification in urban environments

Author:
M.A. Aguilar; M.M. Saldaña; F.J. Aguilar
Source:
International journal of remote sensing 2013 v.34 no.7 pp. 2583-2606
ISSN:
1366-5901
Subject:
base maps; buildings; image analysis; land cover; lidar; models; orthophotography; remote sensing; satellites; statistical analysis; texture
Abstract:
... The latest breed of very high resolution (VHR) commercial satellites opens new possibilities for cartographic and remote-sensing applications. In fact, one of the most common applications of remote-sensing images is the extraction of land-cover information for digital image base maps by means of classification techniques. The aim of the study was to compare the potential classification accuracy pr ...
DOI:
10.1080/01431161.2012.747018

39. Impacts from Above-Ground Activities in the Eagle Ford Shale Play on Landscapes and Hydrologic Flows, La Salle County, Texas

Author:
Jon Paul Pierre; Charles J. Abolt; Michael H. Young
Source:
Environmental management 2015 v.55 no.6 pp. 1262-1275
ISSN:
0364-152X
Subject:
base maps; computer software; drilling; ecoregions; ecosystem services; edge effects; erodibility; geographic information systems; infrastructure; land cover; landscapes; pipelines; runoff; shale; vegetation; wind; Texas
Abstract:
... We assess the spatial and geomorphic fragmentation from the recent Eagle Ford Shale play in La Salle County, Texas, USA. Wells and pipelines were overlaid onto base maps of land cover, soil properties, vegetation assemblages, and hydrologic units. Changes to continuity of different ecoregions and supporting landscapes were assessed using the Landscape Fragmentation Tool (a third-party ArcGIS exten ...
DOI:
10.1007/s00267-015-0492-2

40. Incorporating site and year‐specific deuterium ratios (δ2H) from precipitation into geographic assignments of a migratory bird

Author:
Christopher M. Tonra; Christiaan Both; Peter P. Marra
Source:
Journal of avian biology 2015 v.46 no.3 pp. 266-274
ISSN:
0908-8857
Subject:
Ficedula hypoleuca; base maps; birds; breeding; breeding sites; deuterium; feathers; food webs; geographical variation; growing season; isotopes; migratory behavior; ornithology; overwintering; population
Abstract:
... The study of migratory connectivity is rapidly growing in ornithology, as is the technology used to measure it. While use of extrinsic markers, such as archival tags, is becoming more prevalent, for many small species the best tool available for tracking birds remains intrinsic markers, such as stable‐hydrogen isotope ratios (δ²H). Many researchers have raised concerns that spatial and temporal en ...
DOI:
10.1111/jav.00553

41. Characterizing recent and projecting future potential patterns of mountain pine beetle outbreaks in the Southern Rocky Mountains

Author:
Lu Liang; Todd J. Hawbaker; Yanlei Chen; Zhiliang Zhu; Peng Gong
Source:
Applied geography 2014 v.55 pp. 165-175
ISSN:
0143-6228
Subject:
Dendroctonus ponderosae; Landsat; algorithms; anthropogenic activities; base maps; botanical composition; climate change; ecosystems; geography; linear models; mortality; prediction; residential housing; summer; temperature; time series analysis; Colorado; Rocky Mountain region
Abstract:
... The recent widespread mountain pine beetle (MPB) outbreak in the Southern Rocky Mountains presents an opportunity to investigate the relative influence of anthropogenic, biologic, and physical drivers that have shaped the spatiotemporal patterns of the outbreak. The aim of this study was to quantify the landscape-level drivers that explained the dynamic patterns of MPB mortality, and simulate area ...
DOI:
10.1016/j.apgeog.2014.09.012

42. Spatial Snow Depth Assessment Using LiDAR Transect Samples and Public GIS Data Layers in the Elbow River Watershed, Alberta

Author:
Chris Hopkinson; Tim Collins; Axel Anderson; John Pomeroy; Ian Spooner
Source:
Canadian water resources journal 2012 v.37 no.2 pp. 69-87
ISSN:
1918-1817
Subject:
base maps; canopy; data collection; geographic information systems; lidar; remote sensing; rivers; snow; snowpack; surveys; uncertainty; water stress; watersheds; winter; Alberta
Abstract:
... This study illustrates the potential to combine LiDAR remote sensing and GIS techniques for the purpose of estimating instantaneous winter snowpack volume within the mountainous Elbow River Watershed (ERW) upstream of Calgary, Alberta. Two LiDAR (Light Detection and Ranging) datasets, one during snow-free and the other during late winter were used to evaluate a procedure for snow depth sampling. T ...
DOI:
10.4296/cwrj3702893

43. Spatio-temporal trends and risk factors for Trichinella species infection in wild boar (Sus scrofa) populations of central Spain: A long-term study

Author:
M. Boadella; J.A. Barasona; E. Pozio; V. Montoro; J. Vicente; C. Gortazar; P. Acevedo
Source:
International journal for parasitology 2012 v.42 no.8 pp. 739-745
ISSN:
0020-7519
Subject:
Trichinella; parasites; muscles; health status; base maps; Sus scrofa; confidence interval; digestion; enzyme-linked immunosorbent assay; risk factors; wild boars; Spain
Abstract:
... In south-central Spain, the harvest of Eurasian wild boar (Sus scrofa) has increased significantly during recent decades in association with more intensive management actions to increase hunting yields and with consequent effects on the health status of the wild boar populations. We investigated the spatio-temporal trends and the risk factors related to the prevalence of Trichinella spp. in wild b ...
DOI:
10.1016/j.ijpara.2012.05.003
PubMed:
22677222

44. Tracking animal movement by comparing trace element signatures in claws to spatial variability of elements in soils

Author:
Danielle M. Ethier; Christopher J. Kyle; Joseph J. Nocera
Source:
Science of the total environment 2014 v.468-469 pp. 699-705
ISSN:
0048-9697
Subject:
Taxidea taxus; animals; base maps; chemistry; claws; geology; habitats; isotopes; keratin; land use; principal component analysis; provenance; soil texture; trace elements; Ontario
Abstract:
... Biogeochemical markers in ecology have provided a useful means for indicating geographic origin and movement patterns of species on various temporal and spatial scales. We used trace element analysis to resolve spatial and habitat-specific environmental gradients in elemental distributions that could be used to infer geographic origin and habitat association in a model terrestrial carnivore: Ameri ...
DOI:
10.1016/j.scitotenv.2013.08.091
PubMed:
24061061

45. Accuracy of IKONOS for mapping benthic coral-reef habitats: a case study from the Puerto Morelos Reef National Park, Mexico

Author:
Paula Andrea Zapata-Ramírez; Paul Blanchon; Albert Olioso; Hector Hernandez-Nuñez; José A. Sobrino
Source:
International journal of remote sensing 2013 v.34 no.9-10 pp. 3671-3687
ISSN:
1366-5901
Subject:
accuracy; acoustics; base maps; case studies; coral reefs; corals; disasters; global warming; image analysis; monitoring; national parks; remote sensing; spectral analysis; vegetation; Mexico
Abstract:
... Reefs are being threatened by global warming, natural disasters, and the increased pressure of the global population. These habitats are in urgent need of mapping at high resolution so that these threats can be quantified. Remote sensing can potentially provide such quantitative data. In this article, we attempt to map benthic coral-reef habitats at the Puerto Morelos Reef National Park in Yucatan ...
DOI:
10.1080/01431161.2012.716922

46. Assessment of the postagrogenic transformation of soddy-podzolic soils: Cartographic and analytic support

Author:
N. P. Sorokina; D. N. Kozlov; I. V. Kuznetsova
Source:
Eurasian soil science 2013 v.46 no.10 pp. 1007-1019
ISSN:
1064-2293
Subject:
acidity; agricultural land; arable soils; base maps; chronosequences; clay; fallow; humus; land use; meadows; models; plows; remote sensing; secondary forests; soil surveys; texture
Abstract:
... The results of experimental studies of the postagrogenic transformation of loamy soddy-podzolic soils on the southern slope of the Klin-Dmitrov Moraine Ridge are discussed. A chronosequence of soils (arable soils (cropland)-soils under fallow with meadow vegetation-soils under secondary forests of different ages-soils under a conventionally initial native forest) was examined, and the stages of th ...
DOI:
10.1134/S1064229313100074

47. Comparison of Northern Ireland radon maps based on indoor radon measurements and geology with maps derived by predictive modelling of airborne radiometric and ground permeability data

Author:
J.D. Appleton; J.C.H. Miles; M. Young
Source:
Science of the total environment 2011 v.409 no.8 pp. 1572-1583
ISSN:
0048-9697
Subject:
air pollution; base maps; bedrock; indoor environmental quality; linear models; permeability; radiometry; radon; regression analysis; soil chemistry; spectroscopy; Northern Ireland
Abstract:
... Publicly available information about radon potential in Northern Ireland is currently based on indoor radon results averaged over 1-km grid squares, an approach that does not take into account the geological origin of the radon. This study describes a spatially more accurate estimate of the radon potential of Northern Ireland using an integrated radon potential mapping method based on indoor radon ...
DOI:
10.1016/j.scitotenv.2011.01.023

48. Evaluating inputs to models of hominin raw material selection: map resolution and path choices

Author:
Constance L. Browne; Lucy Wilson
Source:
Journal of archaeological science 2013 v.40 no.11 pp. 3955-3962
ISSN:
0305-4403
Subject:
archaeology; base maps; experimental design; landscapes; model validation; models; raw materials; spatial data; topography; France
Abstract:
... Selection of an appropriate scale is an important decision in study design in many branches of science, since perceived patterns often change with the scales of spatial extent or resolution of an analysis. In previously published work, we created a resource selection model to determine the importance of several independent variables for the selection of lithic materials by hominins at a Middle Pal ...
DOI:
10.1016/j.jas.2013.05.012

49. Identification and characterisation of functional expressed sequence tags-derived simple sequence repeat (eSSR) markers for genetic linkage mapping of Schistosoma mansoni juvenile resistance and susceptibility loci in Biomphalaria glabrata

Author:
Wannaporn Ittiprasert; André Miller; Xin-zhuan Su; Jianbing Mu; Ganlayarat Bhusudsawang; Kitipat Ukoskit; Matty Knight
Source:
International journal for parasitology 2013 v.43 no.8 pp. 669-677
ISSN:
0020-7519
Subject:
parasites; schistosomiasis; crossing; heritability; genetic markers; microsatellite repeats; phenotype; linkage groups; DNA; host-parasite relationships; snails; disease resistance; intermediate hosts; chromosome mapping; progeny; loci; Schistosoma mansoni; Biomphalaria glabrata; base maps; expressed sequence tags
Abstract:
... Biomphalaria glabrata susceptibility to Schistosoma mansoni has a strong genetic component, offering the possibility for investigating host–parasite interactions at the molecular level, perhaps leading to novel control approaches. The identification, mapping and molecular characterisation of genes that influence the outcome of parasitic infection in the intermediate snail host is, therefore, seen ...
DOI:
10.1016/j.ijpara.2013.03.007
PubMed:
23643514
PubMed Central:
PMC4038333

50. Vegetation Maps at the Passage of the Taylor Grazing Act (1934): A Baseline to Evaluate Rangeland Change After a Regime Shift

Author:
Rhonda Skaggs; Zach Edwards; Brandon Bestelmeyer; John B. Wright; Jeb Williamson; Phil Smith
Source:
Rangelands 2011 v.33 no.1 pp. 13-19
ISSN:
0190-0528
Subject:
base maps; grazing; public lands; rangelands; surveys; vegetation cover; New Mexico
Abstract:
... Data from New Mexico range survey maps created shortly after the passage of the Taylor Grazing Act in 1934 have been preserved and are being used to document changes in vegetation. The range survey data were collected at the time of a critical shift in rangeland policy and practice in federal lands of the United States. This paper describes the historical context of the post-Taylor range surveying ...
Handle:
10113/57491
DOI:
10.2111/rangelands-d-10-00031.1

51. Automated Georegistration of High-Resolution Satellite Imagery using a RPC Model with Airborne Lidar Information

Author:
Jaehong Oh; Changno Lee; Yangdam Eo; James Bethel
Source:
Photogrammetric engineering and remote sensing 2012 v.78 no.10 pp. 1045-1056
ISSN:
0099-1112
Subject:
base maps; lidar; markets; models; remote sensing; satellites; screening
Abstract:
...

A large amount high-resolution satellite imagery (HRSI) has been available in the commercial market because of its value in creating accurate base maps for various applications. As massive amounts of HRSI are acquired globally by satellites with short revisit times, automated but accurate georegistration is still required despite advances in precise orbit tracking and estimation. Motivated b ...

DOI:
10.14358/PERS.78.10.1045

52. Comparison of airborne multispectral and hyperspectral imagery for mapping cotton root rot

Author:
Yang, Chenghai; Everitt, James H.; Fernandez, Carlos J.
Source:
Biosystems engineering 2010 v.107 no.2 pp. 131-139
ISSN:
1537-5110
Subject:
image analysis; multispectral imagery; hyperspectral imagery; thematic maps; base maps; cotton; root rot; Phymatotrichopsis omnivora; detection; equipment performance
Abstract:
... Cotton root rot, caused by the soilborne fungus Phymatotrichum omnivorum, is a major cotton disease in the south western and south central United States. Accurate delineation of root rot infestations is necessary for site-specific management of the disease. The objective of this study was to compare airborne multispectral and hyperspectral imagery for detecting and mapping root rot areas in cotton ...
Handle:
10113/46255
DOI:
10.1016/j.biosystemseng.2010.07.011

53. Construction of design hyetographs for locations without observed data

Author:
Lin, Gwo-Fong; Wu, Ming-Chang; Chen, Guo-Rong; Liu, Shen-Jung
Source:
Hydrological processes 2010 v.24 no.4 pp. 481-491
ISSN:
0885-6087
Subject:
base maps; kriging; neural networks; problem solving; rain
Abstract:
... A design hyetograph which represents the time distribution of design rainfall depth corresponding to a duration and a return period is essential in hydrologic design. However, for locations without observed data (ungauged sites), construction of design hyetographs is a difficult task because of the lack of data. Hence, an approach based on self-organizing map (SOM) is proposed in this paper to con ...
DOI:
10.1002/hyp.7500

54. Does availability of physical activity and food outlets differ by race and income? Findings from an enumeration study in a health disparate region

Author:
Jennie L Hill; Clarice Chau; Candice R Luebbering; Korine K Kolivras; Jamie Zoellner
Source:
international journal of behavioral nutrition and physical activity 2012 v.9 no.1 pp. 637
ISSN:
1479-5868
Subject:
peers; grocery stores; foods; income; minorities (people); census data; at-risk population; races; rural health; physical activity; rural population; autocorrelation; base maps; geographic information systems; models; systematic review; obesity; restaurants; cities
Abstract:
... BACKGROUND: Low-income, ethnic/racial minorities and rural populations are at increased risk for obesity and related chronic health conditions when compared to white, urban and higher-socio-economic status (SES) peers. Recent systematic reviews highlight the influence of the built environment on obesity, yet very few of these studies consider rural areas or populations. Utilizing a CBPR process, t ...
DOI:
10.1186/1479-5868-9-105
PubMed:
22954386
PubMed Central:
PMC3490978

55. Modeling Urban Land Cover Growth Dynamics Using Multi‑Temporal Satellite Images: A Case Study of Dhaka, Bangladesh

Author:
Bayes Ahmed; Raquib Ahmed
Source:
ISPRS international journal of geo-information 2012 v.1 no.1 pp. 3-31
ISSN:
2220-9964
Subject:
Landsat; base maps; case studies; land cover; probabilistic models; probability distribution; remote sensing; stochastic processes; urbanization; Bangladesh
Abstract:
... The primary objective of this research is to predict and analyze the future urban growth of Dhaka City using the Landsat satellite images of 1989, 1999 and 2009. Dhaka City Corporation (DCC) and its surrounding impact areas have been selected as the study area. At the beginning, a fisher supervised classification method has been applied to prepare the base maps with five land cover classes. In the ...
DOI:
10.3390/ijgi1010003

56. Botanical richness and endemicity patterns of Borneo derived from species distribution models

Author:
Raes, Niels; Roos, Marco C.; Slik, J.W. Ferry; van Loon, E. Emiel; Steege, Hans ter
Source:
Ecography 2009 v.32 no.1 pp. 180-192
ISSN:
0906-7590
Subject:
El Nino; altitude; atmospheric precipitation; base maps; biogeography; data collection; drought; flora; forests; models; mountains; species diversity; temperature; Borneo
Abstract:
... This study provides a Borneo-wide, quantitative assessment of botanical richness and endemicity at a high spatial resolution, and based on actual collection data. To overcome the bias in collection effort, and to be able to predict the presence and absence of species, even for areas where no collections have been made, we constructed species distribution models (SDMs) for all species taxonomically ...
DOI:
10.1111/j.1600-0587.2009.05800.x

57. Description of the ecological land classification of Europe

Author:
Inga Weustermann; Gunther Schmidt; Winfried Schröder
Source:
Environmental sciences Europe 2009 v.21 no.1 pp. 94-109
ISSN:
2190-4707
Subject:
algorithms; altitude; arsenic; base maps; climate; compliance; computer software; ecoregions; environmental monitoring; geographic information systems; land classification; land use; meteorological data; soil texture; vegetation; Europe
Abstract:
... Background, aim, and scope As described in article 1 of this series (Hornsmann et al. 2008), the ecological land classification of Europe (ELCE) encompassing 40 classes was calculated by using Classification and Regression Trees (CART). Amongst other applications, ELCE could be used as a basis for the spatial optimisation of European environment monitoring networks. This second article of the seri ...
DOI:
10.1007/s12302-008-0024-2

58. Integration of remotely sensed C factor into SWAT for modelling sediment yield

Author:
Xianfeng Song; Zheng Duan; Yasuyuki Kono; Mingyu Wang
Source:
Hydrological processes 2011 v.25 no.22 pp. 3387-3398
ISSN:
0885-6087
Subject:
Modified Universal Soil Loss Equation; Soil and Water Assessment Tool model; base maps; basins; databases; ground cover plants; hydrologic factors; land use; plant growth; prediction; remote sensing; risk; runoff; sediment yield; soil erosion; soil water; water flow; United States
Abstract:
... The C factor, representing the impact of plant and ground cover on soil loss, is one of the important factors of the Modified Universal Soil Loss Equation (MUSLE) in the Soil and Water Assessment Tool (SWAT) to model sediment yield. The daily update of C factors in SWAT was originally determined by land use types and plant growth cycles. This does not reflect the spatial variation of C values that ...
DOI:
10.1002/hyp.8066

59. Quantitative method for comparing soil maps and cartograms

Author:
V. P. Samsonova; Yu. L. Meshalkina
Source:
Moscow University soil science bulletin 2011 v.66 no.3 pp. 83-85
ISSN:
0147-6874
Subject:
accuracy; base maps; reproducibility; researchers; soil
Abstract:
... This paper describes how the overall accuracy coefficient and kappa index are used to estimate the similarity of soil maps. Comparison of two detailed maps built by two independent groups of researchers has shown their coinciding by only 60%. The causes of this noncoincidence are discussed. ...
DOI:
10.3103/S0147687411030082

60. Two methods for detecting landscape associations based on a landscape map

Author:
Zhang, Jin-Tun; Dai, Zuo; Zhang, Qindi
Source:
Landscape and ecological engineering 2011 v.7 no.1 pp. 145-151
ISSN:
1860-1871
Subject:
base maps; data analysis; data collection; detection; landscape position; landscapes; spatial data; vegetation; China
Abstract:
... Landscape association refers to relations among landscape elements. Two methods, landscape juxtaposition and landscape region, for detecting landscape associations are described. Sampling transects across a landscape map were used to collect data. A series of equidistant points is located along each transect, and the landscape element in which each point falls is identified and recorded. These dat ...
DOI:
10.1007/s11355-010-0112-5

61. Is spatial autocorrelation an intrinsic property of territory size

Author:
Valcu, Mihai; Kempenaers, Bart
Source:
Oecologia 2010 v.162 no.3 pp. 609-615
ISSN:
0029-8549
Subject:
animals; autocorrelation; base maps; meta-analysis; territoriality
Abstract:
... In animals, competition for space and resources often results in territorial behaviour. The size of a territory is an important correlate of fitness and is primarily determined by the spatial distribution of resources and by interactions between competing individuals. Both of these determinants, alone or in interaction, could lead to spatial non-independence of territory size (i.e. spatial autocor ...
DOI:
10.1007/s00442-009-1509-4
PubMed:
19924445
PubMed Central:
PMC2821514

62. Accuracy Assessment of Digital Elevation Models based on Approximation Theory

Author:
Peng Hu; Xiaohang Liu; Hai Hu
Source:
Photogrammetric engineering and remote sensing 2009 v.75 no.1 pp. 49-56
ISSN:
0099-1112
Subject:
accuracy; base maps; correlation; digital elevation models; mathematical theory; sampling; topography
Abstract:
...

Empirical research in DEM accuracy assessment has observed that DEM errors are correlated with terrain morphology, sampling density, and interpolation method. However, theoretical reasons for these correlations have not been accounted for. This paper introduces approximation theory adapted from computational science as a new framework to assess the accuracy of DEMs interpolated from topograp ...

DOI:
10.14358/PERS.75.1.49

63. Differences in spatial predictions among species distribution modeling methods vary with species traits and environmental predictors

Author:
Syphard, Alexandra D.; Franklin, Janet
Source:
Ecography 2009 v.32 no.6 pp. 907-918
ISSN:
0906-7590
Subject:
base maps; biogeography; classification; climate; decision making; environmental factors; land management; linear models; planning; prediction; soil; uncertainty; California
Abstract:
... Prediction maps produced by species distribution models (SDMs) influence decision-making in resource management or designation of land in conservation planning. Many studies have compared the prediction accuracy of different SDM modeling methods, but few have quantified the similarity among prediction maps. There has also been little systematic exploration of how the relative importance of differe ...
DOI:
10.1111/j.1600-0587.2009.05883.x

64. Land cover change and land degradation in parts of the southwest coast of Nigeria

Author:
Fasona, Mayowa; Omojola, Ademola
Source:
African journal of ecology 2009 v.47 no.s1 pp. 30-38
ISSN:
0141-6707
Subject:
Landsat; base maps; coasts; ecosystems; environmental impact; food security; geographic information systems; lakes; land cover; land degradation; landscapes; livelihood; ponds; remote sensing; rural communities; saline water; Nigeria
Abstract:
... Frequent alteration in land cover often leads to decreased stability of ecosystems which can also increase the vulnerability of rural communities to externalities of environmental change. This study carried out in parts of the coast of southwestern Nigeria utilized topographic base maps and two-time Landsat TM imageries to assess the trend in land cover changes and ecosystems degradation for the t ...
DOI:
10.1111/j.1365-2028.2008.01047.x

65. Methods to account for spatial autocorrelation in the analysis of species distributional data: a review

Author:
Dormann, Carsten F.; McPherson, Jana M.; Araújo, Miguel B.; Bivand, Roger; Bolliger, Janine; Carl, Gudrun; Davies, Richard G.; Hirzel, Alexandre; Jetz, Walter; Daniel Kissling, W.; Kühn, Ingolf; Ohlemüller, Ralf; Peres-Neto, Pedro R.; Reineking, Björn; Schröder, Boris; Schurr, Frank M.; Wilson, Robert
Source:
Ecography 2007 v.30 no.5 pp. 609-628
ISSN:
0906-7590
Subject:
autocorrelation; base maps; biogeography; climate models; computer software; databases; ecologists; environmental impact; equations; least squares; researchers; spatial data; statistical models; surveys
Abstract:
... Species distributional or trait data based on range map (extent-of-occurrence) or atlas survey data often display spatial autocorrelation, i.e. locations close to each other exhibit more similar values than those further apart. If this pattern remains present in the residuals of a statistical model based on such data, one of the key assumptions of standard statistical analyses, that residuals are ...
DOI:
10.1111/j.2007.0906-7590.05171.x

66. WetSpa Model Application for Assessing Reforestation Impacts on Floods in Margecany-Hornad Watershed, Slovakia

Author:
Bahremand, A.; De Smedt, F.; Corluy, J.; Liu, Y. B.; Poorova, J.; Velcicka, L.; Kunikova, E.
Source:
Water resources management 2007 v.21 no.8 pp. 1373-1391
ISSN:
0920-4741
Subject:
base maps; basins; evaporation; floods; forests; geographic information systems; hydrograph; hydrologic models; land cover; land use; reforestation; soil types; soil water; summer; temperature; watersheds; Slovakia
Abstract:
... The spatially distributed hydrologic model WetSpa working on a daily or hourly time scale combines elevation, soil and landuse data within GIS, to predict flood hydrographs and spatial distribution of hydrologic characteristics in a watershed. The model is applied to the Margecany-Hornad river basin (1,131 km²) located in Slovakia. Daily hydrometeorological data from 1991 to 2000, including precip ...
DOI:
10.1007/s11269-006-9089-0

67. Distributed Hydrological Modeling and Sensitivity Analysis in Torysa Watershed, Slovakia

Author:
Bahremand, A.; De Smedt, F.
Source:
Water resources management 2008 v.22 no.3 pp. 393-408
ISSN:
0920-4741
Subject:
base maps; basins; evaporation; evapotranspiration; geographic information systems; groundwater; hydrograph; hydrologic models; land use; soil types; watersheds; Slovakia
Abstract:
... The spatially distributed hydrologic model WetSpa is applied to the Torysa river basin (1,297 km²) located in Slovakia. Daily hydrometeorological data from 1991 to 2000 are used as input to the model. The spatial characteristic of the basin are described by three base maps, i.e. DEM, landuse and soil type, in GIS form using 100 m cell size. Results of the simulations show a good agreement between ...
DOI:
10.1007/s11269-007-9168-x

68. Fundamental limits to the accuracy of deuterium isotopes for identifying the spatial origin of migratory animals

Author:
Farmer, Adrian; Cade, Brian S.; Torres-Dowdall, Julián
Source:
Oecologia 2008 v.158 no.2 pp. 183-192
ISSN:
0029-8549
Subject:
base maps; birds; deuterium; feathers; geographical distribution; latitude; longitude; stable isotopes; temporal variation; Argentina; North America
Abstract:
... Deuterium isotope analyses have revolutionized the study of migratory connectivity because global gradients of deuterium in precipitation (δDP) are expressed on a continental scale. Several authors have constructed continental scale base maps of δDP to provide a spatial reference for studying the movement patterns of migratory species and, although they are very useful, these maps present a static ...
DOI:
10.1007/s00442-008-1143-6
PubMed:
18810500

69. Identifying Core Areas in a Species' Range Using Temporal Suitability Analysis: an Example Using Little Bustards Tetrax Tetrax L. in Spain

Author:
Osborne, Patrick E.; Suárez-Seoane, Susana
Source:
Biodiversity and conservation 2007 v.16 no.12 pp. 3505-3518
ISSN:
0960-3115
Subject:
Otididae; base maps; geographic information systems; habitats; image analysis; land cover; land use; models; population growth; satellites; surveys; territoriality; time series analysis; wildlife; Spain
Abstract:
... Variations in habitat quality impact on breeding success, leading to strong selection pressure for the best sites to be occupied first during a population increase and last during a decline. Coupled with dispersal and metapopulation processes, the result is that snapshot surveys of wildlife distributions may fail to reveal core areas that conservation seeks to protect. At a local scale, territory ...
DOI:
10.1007/s10531-006-9058-1

70. Little River Experimental Watershed, Tifton, Georgia, United States: a geographic database

Author:
Sullivan, D.G.; Batten, H.L.; Bosch, D.; Sheridan, J.; Strickland, T.
Source:
Water resources research 2007 v.43 no.9 pp. W09471 (4 p
ISSN:
0043-1397
Subject:
databases; groundwater; watersheds; watershed hydrology; coastal plains; environmental impact; sediments; surface water; Agricultural Research Service; water quality; topography; land use; soil water content; weirs; base maps; geographic information systems; Georgia
Abstract:
... The Little River Experimental Watershed is located in the headwaters of the Upper Suwannee River basin and is one of twelve national benchmark watersheds participating in the U.S. Department of Agriculture Conservation Effects Assessment Project-Watershed Assessment Studies. A geographic database has been established to include topography, land use, hydrology, soil distribution, watershed boundari ...
Handle:
10113/16968
DOI:
10.1029/2006WR005836

71. The winter of 1827-1828 over eastern North America: a season of extraordinary climatic anomalies, societal impacts, and false spring

Author:
Mock, Cary J.; Mojzisek, Jan; McWaters, Michele; Chenoweth, Michael; Stahle, David W.
Source:
Climatic change 2007 v.83 no.1-2 pp. 87-115
ISSN:
0165-0009
Subject:
El Nino; base maps; floods; frost; fruit trees; fur; growth rings; rivers; society; spring; temperature; traffic; valleys; vegetation; winter; Alaska; Mississippi River; New England region
Abstract:
... This study reconstructed the weather and its impacts on society for the winter of 1827-1828, focusing on the eastern United States. Data comprise of daily and monthly instrumental records, diaries with both daily and seasonal resolution, newspapers, fur trapper accounts, and tree-rings. Temperature anomalies were calculated and mapped based on the means during the 1820-1840 period to account for d ...
DOI:
10.1007/s10584-006-9126-2

72. Groundwater in Nigeria – a millennium experience – distribution, practice, problems and solutions

Author:
Christopher N. Akujieze; Coker; Oteze
Source:
Hydrogeology journal 2003 v.11 no.2 pp. 259-274
ISSN:
1431-2174
Subject:
base maps; basins; groundwater; hydrogeology; landscapes; surface water; Nigeria
Abstract:
... Lack of appropriate hydrogeological base maps, poor knowledge of the geology of the Nigerian terrain, lack of infrastructural facilities and absence of a working legislature beset the practice of hydrogeology causing problems in exploration, exploitation, operation, control and management of the abundant groundwater resources of Nigeria.This study shows that Nigeria has about 224 trillion l/year o ...
DOI:
10.1007/s10040-002-0227-3

73. Soil moisture mapping using ESTAR under dry conditions from the Southern Great Plains Experiment (SGP99)

Author:
Guha, Aniruddha; Jacobs, Jennifer M.; Jackson, Thomas J.; Cosh, Michael H.; Hsu, En-Ching; Judge, Jasmeet
Source:
IEEE transactions on geoscience and remote sensing : a publication of the IEEE Geoscience and Remote Sensing Society 2003 v.41 no.10 pp. 2392-2397
ISSN:
0196-2892
Subject:
soil water content; dry environmental conditions; base maps; remote sensing; microwave radiation; algorithms; Oklahoma; Great Plains region
Abstract:
... The electronically scanned thin array radiometer (ESTAR) was utilized for soil moisture mapping during the Southern Great Plains Experiment (SGP99). A retrieval algorithm was applied to obtain soil moisture from passive microwave measurements at 1.4 GHz. The algorithm was verified using ground data collected during SGP99. The results indicate a good correlation between observed and predicted soil ...
Handle:
10113/47971
DOI:
10.1109/TGRS.2003.817187

74. The National Map “of Texas” An Example of Statewide Implementation

Author:
Drew Decker
Source:
Photogrammetric engineering and remote sensing 2003 v.69 no.10 pp. 1147-1153
ISSN:
0099-1112
Subject:
Internet; United States Geological Survey; aerial photography; base maps; business partnerships; computer software; data collection; digital database; floodplains; hydrology; information sources; information systems; natural resources; paper; soil; transportation; vision; Texas
Abstract:
...

Citizens have historically relied on many different types of paper maps such as U.S. Geological Survey (USGS) topographic maps, highway maps, and flood plain maps for information about their surroundings. These maps have been produced through traditional mapping and printing processes, however, and are difficult and expensive to update, especially for coverages over large areas. The Texas Na ...

DOI:
10.14358/PERS.69.10.1147

75. The Federal Emergency Management Agency’s Multi-Hazard Flood Map Modernization and The National Map

Author:
Anthony S. Lowe
Source:
Photogrammetric engineering and remote sensing 2003 v.69 no.10 pp. 1133-1135
ISSN:
0099-1112
Subject:
United States Geological Survey; base maps; data collection; modernization; spatial data; United States
Abstract:
...

The Federal Emergency Management Agency (FEMA) is embarking on an ambitious effort to modernize the Nation’s flood maps and develop a framework for the distribution of geospatial data of all hazards in the process. FEMA intends to focus on developing the flood theme, using existing base maps where they are available, and coordinating and partnering with other Federal, state and local agencie ...

DOI:
10.14358/PERS.69.10.1133

76. Validity of geographic information systems (GIS) applied to protected cultivations

Author:
Crifasi, G.; Grassa, F.; Scrofani, M.
Source:
Acta horticulturae 2003 v. no.614 pp. 41-46
ISSN:
0567-7572
Subject:
aerial photography; base maps; computer software; databases; digital images; farm management; geographic information systems; georeferencing; greenhouses; irrigation; methane; modernization; protected cultivation; roads; spatial data; Italy; Sicily
Abstract:
... Any kind of protected cultivation plan which concerns irrigation, electrification, methane pipe-lines, structures modernizing, roads conditions, etc, presumes the knowledge of the compartment. This paper describes the investigation by means of an advanced GIS (Geographic Information Systems) technology on greenhouses distribution and dimension. GIS is a data base management system (DBMS) specifica ...

77. The distribution of Arum maculatum L. (Araceae) in Poland

Author:
Zygmunt Dajdok; Zygmunt Kącki
Source:
Acta Societatis Botanicorum Poloniae 2001 v.70 no.2 pp. 103-106
ISSN:
0001-6977
Subject:
Arum maculatum; base maps; synanthropes; Poland
Abstract:
... Until recently Arum maculatum was considered the only representative of genus Arum in our country. The record of Arum ulpinum Schott and Kotschy in localities in south-east Poland, from which Arum muculatum L. had been reported previously, encouraged us to undertake the study on the distribution of both species in the west of Poland. We found that Arum alpinum occurs also in Silesia, whereas the r ...
DOI:
10.5586/asbp.2001.014

78. Grid map analysis and its application for detecting vegetation changes in Japan

Author:
Nobukazu Nakagoshi; Mutsumi Hikasa; Mamoru Koarai; Toshiyuki Goda; Isao Sakai
Source:
Applied vegetation science 1998 v.1 no.2 pp. 219-224
ISSN:
1402-2001
Subject:
base maps; databases; vegetation; Japan
Abstract:
... Grid maps are used as a basic vegetation data base in Japan; they are simplified from vector‐based vegetation maps. We estimated the frequency error or lack of information corresponding to reduced resolution and examined the reliable limits of this data base. We produced 10 grid maps on five different scales from 50 m to 1000 m using two different methods using both the whole cell (W‐method) and o ...
DOI:
10.2307/1478951