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You searched for: Journal Journal of hydrology Remove constraint Journal: Journal of hydrology Publication Year 2013 Remove constraint Publication Year: 2013 Source 2013 v.486 Remove constraint Source: 2013 v.486
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1. A hydro-climatological lake classification model and its evaluation using global data

Author:
Bracht-Flyr, Brandi; Istanbulluoglu, Erkan; Fritz, Sheri
Source:
Journal of hydrology 2013 v.486 pp. 376-383
ISSN:
0022-1694
Subject:
sediments; basins; evapotranspiration; hydrologic data; lakes; surface area; equations; models; climate change; environmental factors; evaporation; watersheds; land cover; runoff
Abstract:
... For many of the world’s lakes, particularly those in remote regions, an assessment of the basin’s sensitivity to climate change is limited by the availability of appropriate hydrologic data. A regional steady-state lake water balance model was developed that uses simple, yet easily estimated or obtained, data to generate an aridity index (potential evapotranspiration to precipitation ratio) to pre ...
DOI:
10.1016/j.jhydrol.2013.02.003

2. A novel architecture for pore network modelling with applications to permeability of porous media

Author:
Jivkov, Andrey P.; Hollis, Cathy; Etiese, Friday; McDonald, Samuel A.; Withers, Philip J.
Source:
Journal of hydrology 2013 v.486 pp. 246-258
ISSN:
0022-1694
Subject:
X-radiation; engineering; limestone; mass transfer; mechanical properties; model validation; models; permeability; porosity; porous media; tomography
Abstract:
... Network models of porous media are beneficial for predicting the evolution of macroscopic mass transport properties. This work proposes a novel bi-regular network model based on truncated octahedral support. With the model, pore systems with different pore coordination spectra for a given average coordination number can be constructed to match experimental data. This feature and the maximum allowe ...
DOI:
10.1016/j.jhydrol.2013.01.045

3. A phosphorus index that combines critical source areas and transport pathways using a travel time approach

Author:
Buchanan, Brian P.; Archibald, Josephine A.; Easton, Zachary M.; Shaw, Stephen B.; Schneider, Rebecca L.; Todd Walter, M.
Source:
Journal of hydrology 2013 v.486 pp. 123-135
ISSN:
0022-1694
Subject:
agricultural watersheds; drainage; phosphorus; pollutants; pollution load; remediation; runoff; spatial data; storms; streams; water quality; New York
Abstract:
... Spatially distributed nonpoint source (NPS) pollution indices are used to identify areas in a watershed where potential pollutant loading coincides with runoff generating areas. However, most such indices either ignore the degree of hydrologic connectivity to the stream network or they estimate it based simply on the distance of the pollution generating area from an open channel. We propose an NPS ...
DOI:
10.1016/j.jhydrol.2013.01.018

4. Application of radon-222 to investigate groundwater discharge into small shallow lakes

Author:
Dimova, Natasha T.; Burnett, William C.; Chanton, Jeffrey P.; Corbett, Jane Elizabeth
Source:
Journal of hydrology 2013 v.486 pp. 112-122
ISSN:
0022-1694
Subject:
labeling techniques; lakes; radon; seepage; models; surveys; methane; total maximum daily load; groundwater; Florida
Abstract:
... The objective of this work was to assess the groundwater discharge component of the hydrological budgets of several small lakes in north and central Florida using 222Rn (radon, t1/2=3.8days) as a quantitative groundwater tracer. Methane gas and conductivity were also used as secondary natural tracers to help locate active sites of seepage. We present results based on a steady-state radon mass bala ...
DOI:
10.1016/j.jhydrol.2013.01.043

5. A refined automated grain sizing method for estimating river-bed grain size distribution of digital images

Author:
Chung, Chang-Han; Chang, Fi-John
Source:
Journal of hydrology 2013 v.486 pp. 224-233
ISSN:
0022-1694
Subject:
digital images; gravel; habitats; image analysis; neural networks; topography; Taiwan
Abstract:
... Natural bed topography and habitat is affected by the composition of gravels in various shapes and sizes. Traditional measurement methods for grain size distribution are time-consuming and labor-intensive. Recent advances in image processing techniques facilitate automated grain size measurement through digital images. This study introduces a refined automated grain sizing method (R-AGS) incorpora ...
DOI:
10.1016/j.jhydrol.2013.01.026

6. Assessing spatiotemporal variation in actual evapotranspiration for semi-arid watersheds in northwest China: Evaluation of two complementary-based methods

Author:
Matin, Mir A.; Bourque, Charles P.-A.
Source:
Journal of hydrology 2013 v.486 pp. 455-465
ISSN:
0022-1694
Subject:
Food and Agriculture Organization; climate; deserts; equations; evapotranspiration; landscapes; meteorological data; moderate resolution imaging spectroradiometer; mountains; oases; remote sensing; topography; water reuse; water vapor; watersheds; wind speed; China
Abstract:
... Water vapor generated locally by actual evapotranspiration (AET) is important both to the recycling of water regionally and to the long term sustainability of desert–oases in the semi-arid-to-arid region of northwest (NW) China. An accurate assessment of AET is central to describing the hydrologic status of watersheds. Conventional methods of estimating AET from meteorological point data are gener ...
DOI:
10.1016/j.jhydrol.2013.02.014

7. Assessment of robustness and significance of climate change signals for an ensemble of distribution-based scaled climate projections

Author:
Seaby, L.P.; Refsgaard, J.C.; Sonnenborg, T.O.; Stisen, S.; Christensen, J.H.; Jensen, K.H.
Source:
Journal of hydrology 2013 v.486 pp. 479-493
ISSN:
0022-1694
Subject:
climate; climate change; climate models; evapotranspiration; hydrologic models; temperature; variance; Denmark
Abstract:
... An ensemble of 11 regional climate model (RCM) projections are analysed for Denmark from a hydrological modelling inputs perspective. Two bias correction approaches are applied: a relatively simple monthly delta change (DC) method and a more complex daily distribution-based scaling (DBS) method. Differences in the strength and direction of climate change signals are compared across models and betw ...
DOI:
10.1016/j.jhydrol.2013.02.015

8. Assessment of uncertainty in river flow projections for the Mekong River using multiple GCMs and hydrological models

Author:
Thompson, J.R.; Green, A.J.; Kingston, D.G.; Gosling, S.N.
Source:
Journal of hydrology 2013 v.486 pp. 1-30
ISSN:
0022-1694
Subject:
air temperature; climate change; hydrologic models; positron-emission tomography; rivers; simulation models; uncertainty; watersheds; Mekong River
Abstract:
... Hydrological model-related uncertainty is often ignored within climate change hydrological impact assessments. A MIKE SHE model is developed for the Mekong using the same data as an earlier semi-distributed, conceptual model (SLURP). The model is calibrated and validated using discharge at 12 gauging stations. Two sets of climate change scenarios are investigated. The first is based on a 2°C incre ...
DOI:
10.1016/j.jhydrol.2013.01.029

9. Calibration and validation of DRAINMOD to model bioretention hydrology

Author:
Brown, R.A.; Skaggs, R.W.; Hunt, W.F.
Source:
Journal of hydrology 2013 v.486 pp. 430-442
ISSN:
0022-1694
Subject:
bioretention areas; evapotranspiration; cell movement; drain pipes; soil water content; surface area; clay; model validation; soil types; sand; drainage; runoff; hydrologic models; North Carolina
Abstract:
... Previous field studies have shown that the hydrologic performance of bioretention cells varies greatly because of factors such as underlying soil type, physiographic region, drainage configuration, surface storage volume, drainage area to bioretention surface area ratio, and media depth. To more accurately describe bioretention hydrologic response, a long-term hydrologic model that generates a wat ...
DOI:
10.1016/j.jhydrol.2013.02.017

10. Conditions for lateral downslope unsaturated flow and effects of slope angle on soil moisture movement

Author:
Lv, Meixia; Hao, Zhenchun; Liu, Zhen; Yu, Zhongbo
Source:
Journal of hydrology 2013 v.486 pp. 321-333
ISSN:
0022-1694
Subject:
drying; soil water movement; surface drainage; tanks; unsaturated flow
Abstract:
... The necessary conditions for lateral downslope flow in the unsaturated zone in hillslopes have not been clearly identified, and the effects of different slope angles on soil moisture movement are rarely studied. These questions were investigated through drying processes in a homogeneous and isotropic sloping soil tank in this study. Three experiments with different slope angles were conducted. The ...
DOI:
10.1016/j.jhydrol.2013.02.013

11. 3D analysis of geometry and flow changes in a limestone fracture during dissolution

Author:
Noiriel, Catherine; Gouze, Philippe; Madé, Benoît
Source:
Journal of hydrology 2013 v.486 pp. 211-223
ISSN:
0022-1694
Subject:
X-radiation; algorithms; calcite; carbonates; chemistry; digital images; limestone; preferential flow; silicates
Abstract:
... The effects of reactive transport on fracture geometry and fluid flow were investigated through an integrated experimental and modelling approach. A fractured limestone sample (90% calcite) was injected with an acidic CO2-rich solution over a period of 55h to induce carbonate dissolution. The changes in fracture geometry and related parameters are reported for six data sets obtained from synchrotr ...
DOI:
10.1016/j.jhydrol.2013.01.035

12. Developing an integrated hydrograph separation and lumped modelling approach to quantifying hydrological pathways in Irish river catchments

Author:
O’Brien, Ronan J.; Misstear, Bruce D.; Gill, Laurence W.; Deakin, Jenny L.; Flynn, Ray
Source:
Journal of hydrology 2013 v.486 pp. 259-270
ISSN:
0022-1694
Subject:
algorithms; base flow; geology; groundwater; hydrologic models; rain; rivers; streams; water management; watersheds; Ireland
Abstract:
... An appreciation of the quantity of streamflow derived from the main hydrological pathways involved in transporting diffuse contaminants is critical when addressing a wide range of water resource management issues. In order to assess hydrological pathway contributions to streams, it is necessary to provide feasible upper and lower bounds for flows in each pathway. An important first step in this pr ...
DOI:
10.1016/j.jhydrol.2013.01.034

13. Developing a probability-based model of aquifer vulnerability in an agricultural region

Author:
Chen, Shih-Kai; Jang, Cheng-Shin; Peng, Yi-Huei
Source:
Journal of hydrology 2013 v.486 pp. 494-504
ISSN:
0022-1694
Subject:
aquifers; groundwater contamination; kriging; models; nitrate nitrogen; parameter uncertainty; pollutants; prediction; risk; rivers; water quality; Taiwan
Abstract:
... Hydrogeological settings of aquifers strongly influence the regional groundwater movement and pollution processes. Establishing a map of aquifer vulnerability is considerably critical for planning a scheme of groundwater quality protection. This study developed a novel probability-based DRASTIC model of aquifer vulnerability in the Choushui River alluvial fan, Taiwan, using indicator kriging and t ...
DOI:
10.1016/j.jhydrol.2013.02.019

14. Development and comparison in uncertainty assessment based Bayesian modularization method in hydrological modeling

Author:
Li, Lu; Xu, Chong-Yu; Engeland, Kolbjørn
Source:
Journal of hydrology 2013 v.486 pp. 384-394
ISSN:
0022-1694
Subject:
Bayesian theory; algorithms; hydrologic models; information sources; uncertainty; uncertainty analysis
Abstract:
... With respect to model calibration, parameter estimation and analysis of uncertainty sources, various regression and probabilistic approaches are used in hydrological modeling. A family of Bayesian methods, which incorporates different sources of information into a single analysis through Bayes’ theorem, is widely used for uncertainty assessment. However, none of these approaches can well treat the ...
DOI:
10.1016/j.jhydrol.2013.02.002

15. Effect of soil water repellency on soil hydraulic properties estimated under dynamic conditions

Author:
Diamantopoulos, E.; Durner, W.; Reszkowska, A.; Bachmann, J.
Source:
Journal of hydrology 2013 v.486 pp. 175-186
ISSN:
0022-1694
Subject:
climate; drainage; drying; ethanol; hydrophobicity; imbibition; leaching; models; prediction; preferential flow; soil water; unsaturated hydraulic conductivity; water repellent soils
Abstract:
... Soil research done over the past decades has proven that water repellent soils are widespread in all climates. Water repellency enhances the leaching of contaminants in the unsaturated zone by introducing preferential flow. In order to predict soil water fluxes in the unsaturated zone the accurate knowledge of the soil hydraulic properties (SHP) is mandatory. In this study the effect of water repe ...
DOI:
10.1016/j.jhydrol.2013.01.020

16. Estimating soil moisture in gullies from adjacent upland measurements through different observation operators

Author:
Gao, X.; Wu, P.; Zhao, X.; Zhou, X.; Zhang, B.; Shi, Y.; Wang, J.
Source:
Journal of hydrology 2013 v.486 pp. 420-429
ISSN:
0022-1694
Subject:
cumulative distribution; data collection; highlands; linear models; loess; plateaus; prediction; rhizosphere; soil water; watersheds
Abstract:
... Soil moisture datasets in large gullies are rare due to the difficulty of direct sampling in such landform. This study attempted to estimate spatial soil moisture averages in gullies from measurements of adjacent uplands by using observation operators, based on three-year soil moisture datasets in a gully catchment of the Loess Plateau. Soil moisture datasets in 2010 and 2011 were used for develop ...
DOI:
10.1016/j.jhydrol.2013.02.007

17. Estimation of spatial soil moisture averages in a large gully of the Loess Plateau of China through statistical and modeling solutions

Author:
Gao, Xiaodong; Wu, Pute; Zhao, Xining; Wang, Jiawen; Shi, Yinguang; Zhang, Baoqing; Tian, Lei; Li, Hongbing
Source:
Journal of hydrology 2013 v.486 pp. 466-478
ISSN:
0022-1694
Subject:
data collection; dry season; loess; pipes; plateaus; prediction; rhizosphere; soil water; time series analysis; wet season; China
Abstract:
... Characterizing root-zone soil moisture patterns in large gullies is challenging as relevant datasets are scarce and difficult to collect. Therefore, we explored several statistical and modeling approaches, mainly focusing on time stability analysis, for estimating spatial soil moisture averages from point observations and precipitation time series, using 3-year root-zone (0–20, 20–40, 40–60 and 60 ...
DOI:
10.1016/j.jhydrol.2013.02.026

18. Evaporation from multi-component canopies: Generalized formulations

Author:
Lhomme, Jean Paul; Montes, Carlo; Jacob, Frédéric; Prévot, Laurent
Source:
Journal of hydrology 2013 v.486 pp. 315-320
ISSN:
0022-1694
Subject:
canopy; equations; evaporation; models; vegetation
Abstract:
... A general formulation is derived for expressing the evaporation from multi-component canopies representing mixed-plant communities. It generalizes to n components the formulations introduced by Lhomme et al. (Bound-Layer Meteorol. 144, 243–262, 2012) for two and three components models. The new formulation is an alternative and simpler form of the equations previously developed by Wallace (Q. J. R ...
DOI:
10.1016/j.jhydrol.2013.01.038

19. Five centuries of Upper Indus River flow from tree rings

Author:
Cook, Edward R.; Palmer, Jonathan G.; Ahmed, Moinuddin; Woodhouse, Connie A.; Fenwick, Pavla; Zafar, Muhammad Usama; Wahab, Muhammad; Khan, Nasrullah
Source:
Journal of hydrology 2013 v.486 pp. 365-375
ISSN:
0022-1694
Subject:
basins; planning; growth rings; rivers; water supply; irrigation systems; uncertainty; models; supply balance; climate change; entropy; methodology; river water; food production; snowmelt; Indus River; Pakistan
Abstract:
... Water wars are a prospect in coming years as nations struggle with the effects of climate change, growing water demand, and declining resources. The Indus River supplies water to the world’s largest contiguous irrigation system generating 90% of the food production in Pakistan as well as 13gigawatts of hydroelectricity. Because any gap between water supply and demand has major and far-reaching ram ...
DOI:
10.1016/j.jhydrol.2013.02.004

20. Flow structure in canopy models dominated by progressive waves

Author:
Pujol, Dolors; Serra, Teresa; Colomer, Jordi; Casamitjana, Xavier
Source:
Journal of hydrology 2013 v.486 pp. 281-292
ISSN:
0022-1694
Subject:
bedding plants; canopy; models; plant density; vegetation
Abstract:
... Laboratory experiments were carried out to study the flow structure both inside and above different canopy models which were dominated by progressive waves. A set of experimental conditions were considered in a laboratory flume: three vegetation models (submerged rigid, submerged flexible and emergent rigid), three plant densities (128, 640 and 1280stemsm−2) and three wave frequencies (f=0.8, 1 an ...
DOI:
10.1016/j.jhydrol.2013.01.024