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REAL‐TIME MANAGEMENT OF WATER QUALITY IN THE SAN JOAQUIN RWER BASIN, CALIFORNIA 1
Author(s) -
Quinn N. W. T,
Karkoski J.
Publication year - 1998
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1998.tb05446.x
Subject(s) - san joaquin , environmental science , hydrology (agriculture) , water quality , drainage basin , surface runoff , wetland , drainage , salinity , soil salinity control , soil salinity , soil water , geography , geology , soil science , leaching model , ecology , oceanography , geotechnical engineering , cartography , biology
In the San Joaquin River Basin, California, a realtime water quality forecasting model was developed to help improve the management of saline agricultural and wetland drainage to meet water quality objectives. Predicted salt loads from the water quality forecasting model, SJRIODAY, were consistently within ± 11 percent of actual, within ± 14 percent for seven‐day forecasts, and within ± 26 percent for 14‐day forecasts for the 16‐ month trial period. When the 48 days dominated by rainfall/runoff events were eliminated from the data set, the error bar decreased to ± 9 percent for the model and ± 11 percent and ± 17 percent for the seven‐day and 14‐day forecasts, respectively. Constraints on the use of the model for salinity management on the San Joaquin River include the number of entities that control or influence water quality and the lack of a centralized authority to direct their activities. The lack of real‐time monitoring sensors for other primary constituents of concern, such as selenium and boron, limits the application of the model to salinity at the present time. A case study describes wetland drainage releases scheduled to coincide with high river flows and significant river assimilative capacity for salt loads.