Agricultural and Biological Engineering, Purdue University
This is Purdue University's L-THIA for the Great Lakes Watershed Management System. This tool will delineate the area that flows to a pour point and allow you to send that outline, and the soil and landuse data within the outline to our online models.
Select "Delineate" button and click on the stream whose watershed you plan to analyze. Your location is sent to our L-THIA engine and the watershed of that point is calculated; then you can run our L-THIA model on it to predict runoff.
We are using a 8 - digit HUC watershed as the largest possible size!