Implementation, Sensitivity Analysis and Application of the 'ILWAS' Model of Acid Precipitation Impacts to Panther Lake and Walker Branch Watersheds

摘要

The characteristics of the hydrogeochemical responses and sensitivities of two watersheds to acidic deposition were studied using the ILWAS model as the principal analytical tool. The ILWAS model was mounted and tested on several computers at Purdue University. Data for the Panther Lake watershed in the Adirondack Mountains of New York state furnished by EPRI along with the ILWAS were used in a sensitivity analysis. In the analysis the sensitivity of the lake out-flow acidity to changes in the meteorological inputs, the variables describing soil, surface condition, snowmelt, and canopy were investigated. In general, the ILWAS model is an excellent and powerful tool to model the hydrologic and ecologic effects of acid precipitation on watersheds.