An environmental modeling system is being constructed around the EPIC model that will be interfaced with an economic component (RS-CRAM) within an integrated modeling system to analyze agricultural policies such as GRIP for western Canada. A description of the major EPIC subcomponents is provided, including the most important data inputs. An environmental database also has been constructed for EPIC. This database consists of: (1) soil layer and landform data in separate databases for each Prairie Province, (2) ARA 31-year daily historical weather data (precipitation and maximum and minimum temperature) in EPIC format, (3) EPIC weather generator tables for each ARA, and (4) EPIC wind arrays for selected climate stations in Alberta, Manitoba, and Saskatchewan.
Iowa State University
Bouzaher, Aziz; Shogren, Jason F.; Holtkamp, Derald J.; Gassman, Philip W.; Archer, David W.; Lakshminarayan, P. G.; Carriquiry, Alicia L.; Reese, Randall A.; Furtan, William H.; Izaurralde, César; and Kiniry, James R., "Agricultural Policies and Soil Degradation in Western Canada: An Agro-Ecological Economic Assessment - The Environmental Modeling System" (1994). CARD Staff Reports. 47.