| Title: | Development of web-based RECESS model for estimating baseflow using SWAT |
| Authors: | Lee, G., Y. Shin and Y. Jung |
| Year: | 2014 |
| Journal: | Sustainability |
| Volume (Issue): | 6(4) |
| Pages: | 2357-2378 |
| Article ID: | |
| DOI: | 10.3390/su6042357 |
| URL (non-DOI journals): | |
| Model: | SWAT |
| Broad Application Category: | hydrologic only |
| Primary Application Category: | baseflow separation techniques |
| Secondary Application Category: | baseflow, interflow and/or other hydrologic component analysis |
| Watershed Description: | 2,694 km^2 Soyang dam, located in northeast South Korea |
| Calibration Summary: | |
| Validation Summary: | |
| General Comments: | |
| Abstract: | Groundwater has received increasing attention as an important strategic water
resource for adaptation to climate change. In this regard, the separation of baseflow from
streamflow and the analysis of recession curves make a significant contribution to
integrated river basin management. The United States Geological Survey (USGS) RECESS
model adopting the master-recession curve (MRC) method can enhance the accuracy with
which baseflow may be separated from streamflow, compared to other baseflow-separation
schemes that are more limited in their ability to reflect various watershed/aquifer
characteristics. The RECESS model has been widely used for the analysis of hydrographs,
but the applications using RECESS were only available through Microsoft-Disk Operating
System (MS-DOS). Thus, this study aims to develop a web-based RECESS model for easy
separation of baseflow from streamflow, with easy applications for ungauged regions.
RECESS on the web derived the alpha factor, which is a baseflow recession constant in the
Soil Water Assessment Tool (SWAT), and this variable was provided to SWAT as the
input. The results showed that the alpha factor estimated from the web-based RECESS
model improved the predictions of streamflow and recession. Furthermore, these findings
showed that the baseflow characteristics of the ungauged watersheds were influenced by
the land use and slope angle of watersheds, as well as by precipitation and streamflow. |
| Language: | English |
| Keywords: | baseflow; integrated river basin management; web-based RECESS; recession; SWAT; alpha factor |