Update of the Twin Cities Metropolitan Area Regional Recharge Model
Regional recharge modeling with the Twin Cities daily soil water balance (SWB) model has been a fundamental part of the Metropolitan Council’s groundwater flow modeling effort and supports the Metropolitan Area Master Water Supply Plan. The SWB model is used to evaluate the impact of planned and potential land use and climate on recharge in the eleven-county metropolitan area, and supports the ongoing update of the regional groundwater flow model. Project objectives included: 1) incorporating new information into SWB recharge model; 2) expanding the extent of the SWB recharge model; 3) adding the capability to run predictive simulations with the SWB recharge model, and 5) evaluate SWB recharge model uncertainty. This data is currently being incorporated into the regional groundwater flow model.