First posted November 10, 2022 For additional information, contact: Director, Central Midwest Water Science Center U.S. Geological Survey405 North Goodwin Urbana, IL 61801Contact Pubs Warehouse Simulation models of watershed hydrology (also referred to as “rainfall-runoff models”) are calibrated the best available streamflow data, which typically published discharge time series at outlet waters...

Owing to urbanization, impervious areas within watersheds have continuously increased, distorting healthy water circulation systems by reducing soil infiltration and base flow; moreover, increases in surface runoff deteriorate quality increasing the inflow of nonpoint sources. In this study, we constructed a Hydrological Simulation Program—Fortran (HSPF) watershed model that applies area can se...

The impact of climate change on future soil loss is commonly assessed with erosion models, which are suggested to be an important source uncertainty. Here, we present a novel model ensemble assess uncertainty in climate-change assessments. consists five continuous process-based models that run at daily time step (i.e., DHSVM, HSPF, INCA, MMF, SHETRAN). were implemented the SPHY hydrological and...

Saint Louis Bay Watershed is a coastal watershed located in southern Mississippi, which composes two basins: Jordan River Basin and Wolf River Basin. Two land use/land cover (LULC) datasets: the Geographic Information Retrieval and Analysis System (GIRAS) and the National Land Cover Data (NLCD) are applied on these two basins to simulate the hydrologic and water quality parameters by using the ...

Many complex models that utilize continuous simulation (SWMM, HSPF, SLAMM, SIMPTM, etc.) require information pertaining to the accumulation rate of pollutants on the land surfaces. This is one of the most perplexing issues in stormwater modeling. A representation of the accumulation rates is usually obtained through trial and error during calibration, with little, if any, actual direct measurem...

This research examines the impact of climate and land use change on watershed hydrology. Seasonal variability in mean streamflow discharge, 100-year flood, and 7Q10 low-flow of the East Fork Little Miami River watershed, Ohio was analyzed using simulated land cover change and climate projections for 2030. Future urban growth in the Greater Cincinnati area, Ohio, by the year 2030 was projected u...