https://www.usgs.gov/software/thornthwaite-monthly-water-balance-model
Thornthwaite Monthly Water Balance Model | U.S. Geological Survey
The Thornthwaite water balance (Thornthwaite, 1948; Mather, 1978; 1979) uses an accounting procedure to analyze the allocation of water among various...
monthly water balance modelu sthornthwaitegeologicalsurvey