搜索结果: 1-15 共查到“水文测量 watershed”相关记录26条 . 查询时间(0.12 秒)
Practical use of SRTM digital elevation dataset in the urban-watershed modeling
SRTM-DEM Watershed modeling Hydrological model HEC-GeoHMS
2015/8/14
The advent of satellite-based elevation dataset acquired by Shuttle Radar Topography Mission (SRTM) made new and novel techniques possible to model hydrological process in midsize to large scale water...
Location of Fraction-Saturated Areas in Watershed Using Empirically Calculated Topographical Index
VSA Water balance critical values shallow soils Shivalik region of India India
2015/8/14
In engineering practice, simple methods are important for predicting runoff from watersheds particularly for flood forecasting and water balance calculations. In the present study, it is illustrated t...
Watershed Modeling Using GIS Technology: A Critical Review
Geographic Information System GIS hydrologic processes modeling watershed sensing
2015/8/14
Understanding and managing water resource problems involves complex processes and interactions within the watershed surface and subsurface. The imposition of total maximum daily load (TMDL) regulation...
Erosion Predictions by Empirical Models in a Mountainous Watershed in Nepal
Erosion Predictions Empirical Models Mountainous Watershed Nepal
2015/8/14
Soil erosion is a crucial problem in Nepal where more than 80% of the land area is mountainous. In this study, two commonly used empirical soil erosion models, Revised Universal Soil Loss Equation (RU...
Modeling and Understanding the Relationship between Vegetation and Rainfall of a Tropical Watershed using Remote Sensing Data and GIS
NDVI rainfall modelling calibration verification
2015/8/13
A model is developed to understand the relationship between satellite-derived NDVI and rainfall data in a large tropical catchment. Two Fourier-based modeling techniques with a seasonal component, viz...
Spatial Modeling for Hydrological Response Behavior of an Arid Watershed, India-Remote Sensing and GIS approach
land use land cover vegetation vigour runoff soil erosion remote sensing Geographic Information System GIS
2015/8/11
The paper discusses the applications of satellite remote sensing and GIS on characterization and spatial modeling of runoff and soil erosion of Birantiya Kalan, an arid watershed in the district of Pa...
Erosion Risk Assessment using an Empirical Model of Pacific South West Inter Agency Committee Method for Zargeh Watershed, Iran
MPSIAC Erosion Sediment Yield Iran
2015/8/11
Watershed degradation due to soil erosion and sedimentation is one of the major environmental problems in Iran. In addressing the issue, a study on the validity of an empirical model of Pacific South ...
Evaluation of Land Development Impact on a tropical Watershed Hydrology Using Remote Sensing and GIS
Land Development runoff HEC Water Resources GIS Remote Sensing
2015/8/11
Understanding how the land use change influence the river basin hydrology will enable planners to formulate policies to minimize the undesirable effects of future land use changes. Land cover changes ...
Support Soil Conservation Practices by Identifying Critical Erosion Areas within an American Watershed Using the GIS-AGNPS Model
AGNPS C factor erosion GIS Iowa T value water quality modeling
2015/8/11
Eroded soil from overland is one of the major nonpoint pollution sources in many watersheds. The subsequent sediment not only reduces conveyance capacity of streams and usable storage volume of reserv...
Spatially Distributed Watershed Mapping and Modeling: GIS-based Storm Runoff and Hydrograph Analysis: (part 2)
Runoff Geographic Information System GIS curve number land-cover spatially distributed
2015/8/6
Advances in scientific knowledge and new techniques of remote sensing permit a better understanding of the physical land features governing hydrologic processes, and make possible efficient, large-sca...
A Spatial Technique for Estimating Streambank Erosion Based On Watershed Characteristics
Geographic Information System GIS watershed modeling streambank erosion sediment transport
2015/8/6
A GIS-based technique was developed for estimating streambank erosion rates for more accurately predicting total sediment loads at the watershed scale without the use of detailed field data. This tech...
Evolutionary algorithms for multiobjective evaluation of watershed management decisions
Evolutionary algorithms multiobjective evaluation watershed management decisions
2009/12/4
The comprehensive and systematic management of watersheds is essential for reducing the adverse environmental impacts arising from anthropogenically caused erosion and subsequent sedimentation. This p...
Managing water quality in a New York City watershed
Managing water quality New York City watershed
2009/12/4
Currently economic growth in a New York City watershed is limited due to phosphorus concentrations exceeding standards. The phosphorus concentration in the Cannonsville reservoir in New York State mus...
Web-based GIS and spatial decision support system for watershed management
Web-based GIS spatial decision support system watershed management
2009/12/4
Geographic Information Systems (GIS) have been widely used for spatial data manipulation for hydrologic model operations and as a supporting tool to develop spatial decision support systems (SDSS). In...
Rainfall-Runoff Characteristics for a Mountainous Watershed in the Northeast United States
Rainfall-Runoff Characteristics Mountainous Watershed Northeast United States
2009/10/28
A 112 square kilometer research watershed was instrumented to study basic
hydrologic processes in the mountainous areas of the N,ortheastern United
States. Within this area the rainfall-runoff relat...