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You searched for: Subject "stand structure" Remove constraint Subject: "stand structure" Journal Remote sensing of environment Remove constraint Journal: Remote sensing of environment
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1. A mathematical framework to describe the effect of beam incidence angle on metrics derived from airborne LiDAR: The case of forest canopies approaching turbid medium behaviour

Author:
Roussel, Jean-Romain; Béland, Martin; Caspersen, John; Achim, Alexis
Source:
Remote sensing of environment 2018 v.209 pp. 824-834
ISSN:
0034-4257
Subject:
stand structure,   etc   ; angle of incidence; data collection; forest canopy; forest inventory; hardwood forests; lidar; models; probability; remote sensing; spatial distribution;     Show all 11 Subjects
Abstract:
... Airborne laser scanning (LiDAR) is used in forest inventories to quantify stand structure with three-dimensional point clouds. However, the 3D distribution of the point clouds depends not only on stand structure, but also on scan angle, because the probability for an oblique beam to be reflected by the canopy increases with the distance it must travel through the canopy. Thus, the canopy appears t ...
DOI:
10.1016/j.rse.2017.12.006

2. A comparison and validation of satellite-derived fire severity mapping techniques in fire prone north Australian savannas: Extreme fires and tree stem mortality

Author:
Edwards, Andrew C.; Russell-Smith, Jeremy; Maier, Stefan W.
Source:
Remote sensing of environment 2018 v.206 pp. 287-299
ISSN:
0034-4257
Subject:
stand structure,   etc   ; Landsat; aboveground biomass; algorithms; canopy; fire severity; greenhouse gas emissions; mortality; remote sensing; savannas; scorch; trees; wildfires; Australia;     Show all 14 Subjects
Abstract:
... Severe fires in tropical savanna systems are recognised as incurring significant impacts on a variety of ecological attributes, including woody vegetation structure and greenhouse gas emissions. However, knowledge of the frequency and extent of severe fires is restricted given challenges associated with the development of reliable remotely sensed mapping procedures. This study takes advantage of t ...
DOI:
10.1016/j.rse.2017.12.038

3. Removing bias from LiDAR-based estimates of canopy height: Accounting for the effects of pulse density and footprint size

Author:
Roussel, Jean-Romain; Caspersen, John; Béland, Martin; Thomas, Sean; Achim, Alexis
Source:
Remote sensing of environment 2017 v.198 pp. 1-16
ISSN:
0034-4257
Subject:
stand structure,   etc   ; canopy; data collection; forest growth; forest inventory; lidar; mathematical theory; models; monitoring; prediction; remote sensing;     Show all 11 Subjects
Abstract:
... Airborne laser scanning (LiDAR) is used in forest inventories to quantify stand structure with three dimensional point clouds. However, the structure of point clouds depends not only on stand structure, but also on the LiDAR instrument, its settings, and the pattern of flight. The resulting variation between and within datasets (particularly variation in pulse density and footprint size) can induc ...
DOI:
10.1016/j.rse.2017.05.032

4. Toward a general tropical forest biomass prediction model from very high resolution optical satellite images

Author:
Ploton, P.; Barbier, N.; Couteron, P.; Antin, C.M.; Ayyappan, N.; Balachandran, N.; Barathan, N.; Bastin, J.-F.; Chuyong, G.; Dauby, G.; Droissart, V.; Gastellu-Etchegorry, J.-P.; Kamdem, N.G.; Kenfack, D.; Libalah, M.; Mofack, G.I.I.; Momo, S.T.; Pargal, S.; Petronelli, P.; Proisy, C.; Réjou-Méchain, M.; Sonké, B.; Texier, N.; Thomas, D.; Verley, P.; Zebaze Dongmo, D.; Berger, U.; Pélissier, R.
Source:
Remote sensing of environment 2017
ISSN:
0034-4257
Subject:
stand structure,   etc   ; aboveground biomass; basal area; basins; canopy; carbon; case studies; deforestation; emissions; forest inventory; forest types; geometry; image analysis; models; ordination techniques; prediction; provenance; remote sensing; satellites; texture; tropical forests; tropics;     Show all 22 Subjects
Abstract:
... Very high spatial resolution (VHSR) optical satellite imagery has shown good potential to provide non-saturating proxies of tropical forest aboveground biomass (AGB) from the analysis of canopy texture, for instance through the Fourier Transform Textural Ordination method. Empirical case studies however showed that the relationship between Fourier texture features and forest AGB varies across fore ...
DOI:
10.1016/j.rse.2017.08.001

5. Growing stock volume estimation from L-band ALOS PALSAR polarimetric coherence in Siberian forest

Author:
Chowdhury, Tanvir Ahmed; Thiel, Christian; Schmullius, Christiane
Source:
Remote sensing of environment 2014 v.155 pp. 129-144
ISSN:
0034-4257
Subject:
stand structure,   etc   ; Betula; correlation; forest inventory; forest stands; forests; models; polarimetry; radar; remote sensing; thawing; trees; weather;     Show all 13 Subjects
Abstract:
... This paper investigated the potential of L-band ALOS PALSAR full polarimetric radar data for forestry applications. In order to characterize the polarization response as a function of growing stock volume (GSV), weather conditions and different tree species in Siberian forests, the polarization phase difference between HH and VV polarizations and the magnitude of the polarimetric HHVV-coherence ha ...
DOI:
10.1016/j.rse.2014.05.007

6. Accuracy of small footprint airborne LiDAR in its predictions of tropical moist forest stand structure

Author:
Vincent, G.; Sabatier, D.; Blanc, L.; Chave, J.; Weissenbacher, E.; Pélissier, R.; Fonty, E.; Molino, J.-F.; Couteron, P.
Source:
Remote sensing of environment 2012 v.125 pp. 23-33
ISSN:
0034-4257
Subject:
stand structure,   etc   ; anthropogenic activities; basal area; canopy; data collection; forest stands; lidar; models; prediction; remote sensing; soil; tropical forests; French Guiana;     Show all 13 Subjects
Abstract:
... We predict stand basal area (BA) from small footprint LiDAR data in 129 one-ha tropical forest plots across four sites in French Guiana and encompassing a great diversity of forest structures resulting from natural (soil and geological substrate) and anthropogenic effects (unlogged and logged forests). We use predictors extracted from the Canopy Height Model to compare models of varying complexity ...
DOI:
10.1016/j.rse.2012.06.019

7. Measuring effective leaf area index, foliage profile, and stand height in New England forest stands using a full-waveform ground-based lidar

Author:
Zhao, Feng; Yang, Xiaoyuan; Schull, Mitchell A.; Román-Colón, Miguel O.; Yao, Tian; Wang, Zhuosen; Zhang, Qingling; Jupp, David L.B.; Lovell, Jenny L.; Culvenor, Darius S.; Newnham, Glenn J.; Richardson, Andrew D.; Ni-Meister, Wenge; Schaaf, Crystal L.; Woodcock, Curtis E.; Strahler, Alan H.
Source:
Remote sensing of environment 2011 v.115 no.11 pp. 2954-2964
ISSN:
0034-4257
Subject:
stand structure,   etc   ; canopy; conifers; forest stands; forests; hardwood; image analysis; leaf area index; leaves; lidar; photography; remote sensing; stocking rate; Australia; Maine; Massachusetts; New England region; New Hampshire;     Show all 18 Subjects
Abstract:
... Effective leaf area index (LAI) retrievals from a scanning, ground-based, near-infrared (1064nm) lidar that digitizes the full return waveform, the Echidna Validation Instrument (EVI), are in good agreement with those obtained from both hemispherical photography and the Li-Cor LAI-2000 Plant Canopy Analyzer. We conducted trials at 28 plots within six stands of hardwoods and conifers of varying hei ...
DOI:
10.1016/j.rse.2010.08.030

8. Interpretation and topographic compensation of conifer canopy self-shadowing

Author:
Kane, Van R.; Gillespie, Alan R.; McGaughey, Robert; Lutz, James A.; Ceder, Kevin; Franklin, Jerry F.
Source:
Remote sensing of environment 2008 v.112 no.10 pp. 3820
Subject:
stand structure,   etc   ; coniferous forests; forest canopy; remote sensing; topography; forest stands; lidar; image analysis; spectral analysis; shade; Northwestern United States;     Show all 11 Subjects
Abstract:
... The self-shadowing of conifer canopies results from the size and arrangement of trees within a stand and is a first-order term controlling radiance from forested terrain at common pixel scales of tens of meters. Although self-shadowing is a useful attribute for forest remote-sensing classification, compensation for the topographic effects of self-shadowing has proven problematic. This study used a ...
Handle:
10113/37570
DOI:
10.1016/j.rse.2008.06.001

9. Patterns of covariance between forest stand and canopy structure in the Pacific Northwest

Author:
Lefsky, Michael A.; Hudak, Andrew T.; Cohen, Warren B.; Acker, S.A.
Source:
Remote sensing of environment 2005 v.95 no.4 pp. 517
Subject:
stand structure,   etc   ; tree and stand measurements; forest stands; forest canopy; statistical analysis; correlation; remote sensing; lidar; data analysis;     Show all 9 Subjects
Abstract:
... In the past decade, lidar (light detection and ranging) has emerged as a powerful tool for remotely sensing forest canopy and stand structure, including the estimation of aboveground biomass and carbon storage. Numerous papers have documented the use of lidar measurements to predict important aspects of forest stand structure, including aboveground biomass. Other papers have documented the ability ...
Handle:
10113/37565
DOI:
10.1016/j.rse.2005.01.004

10. Tree species differentiation using intensity data derived from leaf-on and leaf-off airborne laser scanner data

Author:
Kim, Sooyoung; McGaughey, Robert J.; Andersen, Hans-Erik; Schreuder, Gerard
Source:
Remote sensing of environment 2009 v.113 no.8 pp. 1575
Subject:
stand structure,   etc   ; forest trees; tree crown; lidar; remote sensing; data analysis; leaves; tree and stand measurements; spatial distribution; spatial data; forest stands; hyperspectral imagery; image analysis; spectral analysis; reflectance;     Show all 15 Subjects
Abstract:
... Tree species identification is important for a variety of natural resource management and monitoring activities including riparian buffer characterization, wildfire risk assessment, biodiversity monitoring, and wildlife habitat assessment. Intensity data recorded for each laser point in a LIDAR system is related to the spectral reflectance of the target material and thus may be useful for differen ...
Handle:
10113/38815
DOI:
10.1016/j.rse.2009.03.017

11. Geographic variability in lidar predictions of forest stand structure in the Pacific Northwest

Author:
Lefsky, Michael A.; Hudak, Andrew T.; Cohen, Warren B.; Acker, S.A.
Source:
Remote sensing of environment 2005 v.95 no.4 pp. 532
Subject:
stand structure,   etc   ; forest stands; lidar; forest inventory; biomass; remote sensing; geographical variation; equations; coniferous forests; forest canopy; environmental factors; regression analysis; data analysis; correlation; forest ecology; estimation; Northwestern United States;     Show all 17 Subjects
Abstract:
... Estimation of the amount of carbon stored in forests is a key challenge for understanding the global carbon cycle, one which remote sensing is expected to help address. However, carbon storage in moderate to high biomass forests is difficult to estimate with conventional optical or radar sensors. Lidar (light detection and ranging) instruments measure the vertical structure of forests and thus hol ...
Handle:
10113/37568
DOI:
10.1016/j.rse.2005.01.010

12. Remote sensing in BOREAS: Lessons learned

Author:
Gamon, J.A.; Huemmrich, K.F.; Peddle, D.R.; Chen, J.; Fuentes, D.; Hall, F.G.; Kimball, J.S.; Goetz, S.; Gu, J.; McDonald, K.C.; Miller, J.R.; Moghaddam, M.; Rahman, A.F.; Roujean, J.L.; Smith, E.A.; Walthall, C.L.; Zarco-Tejada, P.; Hu, B.; Fernandes, R.; Cihlar, J.
Source:
Remote sensing of environment 2004 v.89 no.2 pp. 139
Subject:
stand structure,   etc   ; boreal forests; remote sensing; vegetation cover; biogeochemical cycles; vegetation structure; climatic factors; weather; spectral analysis; thermal analysis; lidar; radar; albedo (reflectance); forest stands; climate change; research projects; Canada;     Show all 17 Subjects
Abstract:
... The Boreal Ecosystem Atmosphere Study (BOREAS) was a large, multiyear internationally supported study designed to improve our understanding of the boreal forest biome and its interactions with the atmosphere, biosphere, and the carbon cycle in the face of global climate change. In the initial phase of this study (early 1990s), remote sensing played a key role by providing products needed for plann ...
Handle:
10113/37951
DOI:
10.1016/j.rse.2003.08.017

13. Estimating structural attributes of Douglas-fir/western hemlock forest stands from landsat and SPOT imagery

Author:
Cohen, W.B.; Spies, T.A.
Source:
Remote sensing of environment 1992 v.41 no.1 pp. 1
ISSN:
0034-4257
Subject:
stand structure,   etc   ; Pseudotsuga menziesii; Tsuga heterophylla; tree age; linear models; forest inventory; Landsat; Oregon; Washington;     Show all 9 Subjects
Abstract:
... To help determine the utility of satellite data for analysis and inventory of Douglas-fir/western hemlock forests west of the Cascade Mountains crest in Oregon and Washington, USA, we evaluate relationships between spectral and texture variables derived from SPOT HRV 10 m panchromatic and LANDSAT TM 30 m multispectral data and 16 forest stand structural attributes. Texture of the HRV data was stro ...
Handle:
10113/36751
DOI:
10.1016/0034-4257(92)90056-P

14. Use of Large-Footprint Scanning Airborne Lidar To Estimate Forest Stand Characteristics in the Western Cascades of Oregon

Author:
Means, Joseph E.; Acker, Steven A.; Harding, David J.; Blair, J. Bryan; Lefsky, Michael A.; Cohen, Warren B.; Harmon, Mark E.; McKee, W. Arthur
Source:
Remote sensing of environment 1999 no.3 pp. 298
Subject:
stand structure,   etc   ; forest stands; lidar; image analysis; estimation; coniferous forests; forest canopy; data analysis; basal area; height; biomass; models; prediction; Oregon;     Show all 14 Subjects
Abstract:
... Estimates of forest area were obtained for the states of Indiana, Iowa, Minnesota, and Missouri in the United States using stratified analyses and observations from forest inventory plots measured in federal fiscal year 1999. Strata were created by aggregating the land cover classes of the National Land Cover Data (NLCD), and strata weights were calculated as proportions of strata pixel counts. Th ...
Handle:
10113/37560
DOI:
10.1016/S0034-4257(98)00091-1

15. Surface Lidar Remote Sensing of Basal Area and Biomass in Deciduous Forests of Eastern Maryland, USA

Author:
Lefsky, Michael A.; Harding, D.; Cohen, W.B.; Parker, G.; Shugart, H.H.
Source:
Remote sensing of environment 1999 v.67 no.1 pp. 83
Subject:
stand structure,   etc   ; deciduous forests; tree and stand measurements; lidar; remote sensing; basal area; forest stands; forest canopy; height; regression analysis; equations; data analysis; prediction; Maryland;     Show all 14 Subjects
Abstract:
... A method of predicting two forest stand structure attributes, basal area and aboveground biomass, from measurements of forest vertical structure was developed and tested using field and remotely sensed canopy structure measurements. Coincident estimates of the vertical distribution of canopy surface area (the canopy height profile), and field-measured stand structure attributes were acquired for t ...
Handle:
10113/37566
DOI:
10.1016/S0034-4257(98)00071-6

16. Semivariograms of digital imagery for analysis of conifer canopy structure

Author:
Cohen, W.B.; Spies, T.A.; Bradshaw, G.A.
Source:
Remote sensing of environment 1990 v.34 no.3 pp. 167
ISSN:
0034-4257
Subject:
stand structure,   etc   ; Pseudotsuga menziesii; forests; remote sensing; image analysis; canopy; Oregon;     Show all 7 Subjects
Abstract:
... Semivariograms were used to exploit the spatial information inherent in digital imagery of a variety of Douglas-fir [Pseudotsuga menziesii (Mirbel) Franco] forest stands in the Pacific Northwest region of the United Stataes. Calculations involved digital numbers from single transects of pixels representative of each stand and from a full spatial matrix of pixels from each stand. Digitized aerial v ...
Handle:
10113/36764
DOI:
10.1016/0034-4257(90)90066-U

17. Lidar Remote Sensing of the Canopy Structure and Biophysical Properties of Douglas-Fir Western Hemlock Forests

Author:
Lefsky, M.A.; Cohen, W.B.; Acker, S.A.; Parker, G.G.; Spies, T.A.; Harding, D.
Source:
Remote sensing of environment 1999 v.70 no.3 pp. 339
Subject:
stand structure,   etc   ; coniferous forests; forest canopy; vegetation structure; forest stands; age structure; old-growth forests; remote sensing; lidar; data analysis; new methods; stand composition; leaf area; basal area; canopy gaps; Oregon;     Show all 16 Subjects
Abstract:
... Scanning lidar remote sensing systems have recently become available for use in ecological applications. Unlike conventional microwave and optical sensors, lidar sensors directly measure the distribution of vegetation material along the vertical axis and can be used to provide three-dimensional, or volumetric, characterizations of vegetation structure. Ecological applications of scanning lidar hav ...
Handle:
10113/37440
DOI:
10.1016/S0034-4257(99)00052-8