APPLICATION OF ARC HYDRO GROUNDWATER TO THE SACRAMENTO REGIONAL MODEL

摘要

The Sacramento Regional Model (SRM) encompasses an area of approximately 1,360 square miles (871,000 acres), overlying the North American and South American subbasins of the Sacramento Valley Groundwater Basin, and the Cosumnes subbasin of the San Joaquin Groundwater Basin. The SRM was developed on behalf of the City of Roseville to provide an analytical tool to support Aquifer Storage and Recovery Operations and modeling efforts that are being conducted to maintain the quality and ensure the long-term availability of groundwater to meet backup, emergency, and peak demands. The SRM utilizes GMS and Arc Hydro Groundwater (AHGW) as pre- and post-processing tools. GMS was used for the initial creation and calibration of the model, and the Arc Hydro Data Model (AHDM) and AHGW tools were used to process, store, and manage model inputs and outputs for the SRM model. The AHDM provided a component to generate native MODFLOW input files from automated custom workflows, developed using the ArcGIS Model Builder Application, which were directly linked to the AHDM. The AHGW tools, in combination with GMS, provide the long-awaited bridge for integrating geospatial processing tools with groundwater modeling needs with an ArcGIS framework.