نتایج جستجو برای: runoff simulation

تعداد نتایج: 571549  

2016
Yungang Li Daming He Xue Li Yueyuan Zhang Liyan Yang Xixi Wang Xuefeng Chu Tingxi Liu Xiangju Cheng

Quantifying the effects of climate variability and human activities on runoff changes will contribute to regional water resource planning and management. This study aims to separate the effects of climate variability and human activities on runoff changes in the upper catchment of the Red River Basin in China. The Mann–Kendall test and Pettitt’s test methods were applied to identify the trends ...

2013
VIVIANA MAGGIONI HUMBERTO J. VERGARA EMMANOUIL N. ANAGNOSTOU JONATHAN J. GOURLEY YANG HONG DIMITRIOS STAMPOULIS

This study uses a stochastic ensemble-based representation of satellite rainfall error to predict the propagation in flood simulation of three quasi-global-scale satellite rainfall products across a range of basin scales. The study is conducted on the Tar-Pamlico River basin in the southeastern United States based on 2 years of data (2004 and 2006). The NWSMultisensor Precipitation Estimator (M...

Journal: :Remote Sensing 2013
Elena Tarnavsky Mark Mulligan Mohamed Ouessar Abdoulaye Faye Emily Black

This paper introduces and evaluates DryMOD, a dynamic water balance model of the key hydrological process in drylands that is based on free, public-domain datasets. The rainfall model of DryMOD makes optimal use of spatially disaggregated Tropical Rainfall Measuring Mission (TRMM) datasets to simulate hourly rainfall intensities at a spatial resolution of 1-km. Regional-scale applications of th...

A.Heidari, B. Saghfian and R. Maknoon,

Flood hydrograph simulation is affected by uncertainty in Rainfall – Runoff )RR( parameters. Uncertainty of RR parameters in Gharasoo catchment, part of the great Karkheh river basin, is evaluated by Monte–Carlo (MC) approach. A conceptual-distributed model, called ModClark, was used for basin simulation, in which the basin’s hydrograph was determined using the superposition of runoff generated...

Journal: :Environmental science & technology 2013
Stacey R Joy Shannon L Bartelt-Hunt Daniel D Snow John E Gilley Bryan L Woodbury David B Parker David B Marx Xu Li

Due to the use of antimicrobials in livestock production, residual antimicrobials and antimicrobial resistance genes (ARGs) could enter the environment following the land application of animal wastes and could further contaminate surface and groundwater. The objective of this study was to determine the effect of various manure land application methods on the fate and transport of antimicrobials...

2004
Pao-Shan Yu Yu-Chi Wang Chun-Chao Kuo

Simulation of flow hydrograph at an ungauged site recently has attracted considerable attention. A distributed rainfall-runoff model not only can describe the spatial heterogeneity of physiographical and hydrological characteristics in the catchment, but also can simulate the hydrological processes inside the studied area. If a distributed rainfall-runoff model can be adequately verified based ...

Journal: :Journal of Korea Water Resources Association 2005

Journal: :caspian journal of enviromental sciences 0

reliable estimates of runoff are required as a part of the information sets that help watershed managers make informed decisions on water resources planning and management. this study was carried out in shafaroud watershed located in the north of iran. in order to achieve the best runoff simulation in the study area, first rainfall data of four stations during 1998 to 2011 were collected and co...

2010
B. Eghball John E. Gilley L. A. Kramer T. B. Moorman J. E. Gilley

ing beef cattle feedlot manure under tilled and n-till conditions. This study was conducted on a steep (12% average slope) Monona silt loam (fine-silty, mixed, superactive, mesic Typic Hapludolls) soil near Treynor, Iowa. The experiment was a split-plot with no-till and disked systems as main plots and subplots of manure, fertilizer, and check with or without a grass hedge. A rainfall simulator...

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