Aptool: Quantifying Antecedent Precipitation For Hydrologic Modeling And Forecasting
The Antecedent Precipitation Tool (APTOOL) is a computer program that calculates the Antecedent Precipitation Index (API) and Precipitation Index (PI) to quantify antecedent precipitation, a critical factor in hydrologic modeling and forecasting. APTOOL is used in rainfall-runoff modeling, flood forecasting, reservoir operations, and drought management. It provides insights into soil moisture content and how it influences runoff and flood potential. The API serves as a refined measure of antecedent precipitation, considering the effects of previous rainfall events. APTOOL aids in estimating runoff, predicting flood magnitude and timing, managing reservoir releases, and assessing drought severity. These capabilities make APTOOL valuable for water resources management professionals.