This dataset provides the shapefiles of the 46 calibration and 7 validation watersheds used within the Great Lakes Runoff Inter-comparison Project for Lake Erie (GRIP-E). The watersheds draining towards the following WSC and USGS gauge stations have been used for: 1a. calibration of objective 1 (low-human impact) (28 stations in total; 13 of them in both objective 1 and 2) 02GA010 02GA018 02GA038 02GA047 02GB007 02GC002 02GC010 02GC018 02GD004 02GE007 02GG002 02GG003 02GG006 02GG009 02GG013 04159492 04159900 04160600 04161820 04164000 04165500 04166100 04177000 04196800 04197100 04207200 04208504 04213000 1b. calibration of objective 2 (most-downstream gauges closest to Lake Erie) (31 stations in total; 13 of them in both objective 1 and 2) 02GB001 02GB007 02GC002 02GC007 02GC018 02GC026 02GE007 02GG003 02GG009 02GG013 04159900 04160600 04165500 04166500 04174500 04176500 04177000 04193500 04195820 04198000 04199000 04199500 04200500 04208504 04209000 04212100 04213000 04213500 04214500 04215000 04215500 2. (spatial) validation (7 stations in total) 02GE003 04167000 04168000 04185000 04195500 04201500 04208000 =============================================================== These data have been derived under the Great Lakes Runoff Intercomparison Project for Lake Erie (GRIP-E) led by Juliane Mai and Bryan Tolson (both University of Waterloo) and funded under the Integrated Modelling Program for Canada (IMPC) within the Global Water Futures program.