Spatial resolution of soil data and channel erosion effects on SWAT model predictions of flow and sediment

  title={Spatial resolution of soil data and channel erosion effects on SWAT model predictions of flow and sediment},
  author={Rajith Mukundan and David E. Radcliffe and Lawrence Mark Risse},
  journal={Journal of Soil and Water Conservation},
  pages={104 - 92}
Water quality modeling efforts for developing total maximum daily loads often use geographical information system data of varying quality in watershed-scale models and have shown varying impacts on model results. Several streams in the southern Piedmont are listed for sediment total maximum daily loads. The objective of this study was to test the effect of spatial resolution of soil data on the SWAT (Soil and Water Assessment Tool) model predictions of flow and sediment and to calibrate the… 

Modeling the Impacts of Spatial Heterogeneity in the Castor Watershed on Runoff, Sediment, and Phosphorus Loss Using SWAT: I. Impacts of Spatial Variability of Soil Properties

The primary objective of this study was to quantify the impacts of spatial variability of soil properties on the prediction of runoff, sediment, and total phosphorus using SWAT.

Estimating Sediment Yield from Upland and Channel Erosion at A Watershed Scale Using SWAT

Sediment discharge is one of the main water quality concerns in integrated watershed management. A proper identification of sediment sources is therefore important to the success of watershed

Response of Simulated Stream Flow to Soil Data Spatial Detail across Different Routing Areas

  • A. Zhu
  • Environmental Science
  • 2011
Appropriate spatial detail of input data for watershed modeling is partly dependent on the scale of the watershed modeled.It will facilitate data selection for modeling if the effect of watershed

Effect of Soil Data Resolution on Identification of Critical Source Areas of Sediment

Identification of critical source areas (CSAs) of pollution in a watershed is important for effective implementation of best man- agement practices (BMPs). Process-based watershed models are often

Water and sediment transport modeling of a large temporary river basin in Greece.

Effects of spatial information of soil physical properties on hydrological modeling based on a distributed hydrological model

The spatial distribution of soil physical properties is essential for modeling and understanding hydrological processes. In this study, the different spatial information (the conventional soil types

How do modeling choices and erosion zone locations impact the representation of connectivity and the dynamics of suspended sediments in a multi-source soil erosion model?

Abstract. Soil erosion and suspended sediment transport understanding is an important issue in terms of soil and water resources management in the critical zone. In mesoscale watersheds ( >10 km2 )

Effect of different soil data on hydrological process modeling in Weihe River basin of Northwest China

  • Anzhou Zhao
  • Environmental Science
    Arabian Journal of Geosciences
  • 2016
Hydrological process modeling depends on the soil data spatial resolution of the watershed. Especially, in a large-scale watershed, could a higher resolution of soil data contribute to a more



Impacts of input parameter spatial aggregation on an agricultural nonpoint source pollution model

Effect of GIS data quality on small watershed stream flow and sediment simulations

Simulations of total runoff and fine sediment yield in Goodwin Creek watershed, which covers 21·3 km2 in Mississippi, were carried out using a hydrological model‐GIS system. The system includes the

Influences of Soil Dataset Resolution on Hydrologic Modeling

ABSTRACT: Soils represent a fundamental abiotic parameter in defining the characteristics of an ecosystem. The U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS)


ABSTRACT: Soil data comprise a basic input of SWAT (Soil and Water Assessment Tool) for a watershed application. For watersheds where site specific soil data are unavailable, the two U.S. Department

A SSURGO Pre-Processing Extension for the ArcView Soil and Water Assessment Tool

Soils represent a fundamental abiotic parameter in defining the characteristics of an ecosystem. The United States Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS)

Preliminary Sediment Analysis for the Broad River

Sediment Total Maximum Daily Loads (TMDLs) have been proposed for segments of the North, Middle, and South Forks of the Broad River. Our objectives are to present the sediment data that is available