| Title: | Spatial and temporal analysis of agricultural water requirements in the Gulf Coast of the United States |
| Authors: | Ritschard, R. L., J.F. Cruise and L.U. Hatch |
| Year: | 1999 |
| Journal: | Journal of the American Water Resources Association |
| Volume (Issue): | 35(6) |
| Pages: | 1585-1596 |
| Article ID: | |
| DOI: | 10.1111/j.1752-1688.1999.tb04239.x |
| URL (non-DOI journals): | |
| Model: | SWAT |
| Broad Application Category: | hydrologic only |
| Primary Application Category: | climate change assessment |
| Secondary Application Category: | hydrologic assessment |
| Watershed Description: | 5 USGS 8-digit watersheds, located on the border between Mississippi & Alabama, U.S. |
| Calibration Summary: | Average monthly graphical comparisons between simulated and observed flows are shown for Little Yellow Creek at Burnside, Mississippi |
| Validation Summary: | |
| General Comments: | GCM (HadCM2) climate projections on discharge, runoff, precipitation, and ET are reported for 2020-30 and 2080-90 in the Mississippi Gulf Coast region, along with baseline results for 1974-93. Five 8-digit watersheds that lie along the Alabama-Mississippi border were assumed representative of the region and specifically studied. The impacts of agricultural management and irrigation water withdrawal scenarios were assessed. The results indicate that available water may decline up to 10% in the next 20-40 years in southern areas of study region, during most important times of agricultural crop demand. This implies that increased irrigation may be needed in the future, resulting in increased competition with other water demands. |
| Language: | English |
| Keywords: | agricultural hydrology; hydrograph analysis and modeling; irrigation; meteorology/climate; surface water hydrology; water demand; water policy/regulation/decision making; water resources planning |