Advanced Hydrologic Modeling in Watershed Scale

Process Representation in Watershed-scale Hydrologic Models: an Evaluation in an Experimental Watershed

Hydrologic response varies within a watershed as a function of topography, soil, and land cover. Spatial and temporal data from experimental watersheds may provide information on where, when, how, and why the response varies. This study examined the hydrologic response of an agricultural watershed, FD-36, in the Appalachian Valley and Ridge physiographic region. FD-36 is characterized by shallo...

Gis-based Hydrologic Modeling: the Automated Geospatial Watershed Assessment Tool

based model describing the processes of interception, infiltration, surface runoff, and erosion from small agricultural and urban watersheds (Smith et al., 1995). In this model, watersheds are represented by subdividing contributing areas into a cascade of one-dimensional overland flow and channel elements using topographic information. A broadly updated version of KINEROS, KINEROS2 may be used...

Fuzzy Hydrologic Model in Tropical Watershed

Watershed-Scale Hydrological Modeling Methods and Applications

Pollution of surface water with harmful chemicals and eutrophication of rivers and lakes with excess nutrients are serious environmental concerns. The U.S. Environmental Protec‐ tion Agency (USEPA) estimated that 53% of the 27% assessed rivers and streams miles and 69% of the 45% assessed lakes, ponds, and reservoirs acreage in the nation are impaired (USEPA, 2010). In Mississippi, 57% of the 5...

Autocalibration in hydrologic modeling: Using SWAT2005 in small-scale watersheds

SWAT is a physically based model that can simulate water quality and quantity at the watershed scale. Due to many of the processes involved in the manualor autocalibration of model parameters and the knowledge of realistic input values, calibration can become difficult. An autocalibration-sensitivity analysis procedure was embedded in SWAT version 2005 (SWAT2005) to optimize parameter processin...