CCHF (Cryosphere Hydrological Modeling Package) is a hydrological modeling package written in Matlab specifically designed to simulate hydrological processes in glaciers and snow covered areas. This package achieves its goals through the following features: Simulate hydrological processes in glacier and snow covered areas Simulate snowfall, melting, runoff, and soil moisture transport • Study the impact of climate change on cryosphere hydrology • Predicting snowmelt runoff and assessing water resources • Support simulation of hydrological processes in glacial watersheds