US Geological Survey


Date of this Version



Published in Hydraulic Engineering: Saving a Threatened Resource—In Search of Solutions: Proceedings of the Hydraulic Engineering sessions at Water Forum ’92. Baltimore, Maryland, August 2–6, 1992. Published by American Society of Civil Engineers.


Comprehensive hydrologic analyses can be very effective for the assessment of hydrologic effects of land use and climate changes, but the costs and expertise is often prohibitive. Progress has been made in four areas to reduce the costs and expertise required: (1) Watershed Data Management (WDM) system for the storage and retrieval of data used and generated by the model, (2) an expert system for the calibration of the model, (3) use of Geographical Information Systems to generate distributed parameters for the model, and (4) easy to use software for applications of the model.