Snow hydrology is the study of how snow interacts with the hydrological cycle, including precipitation, runoff, and streamflow. It focuses on understanding the processes that control the distribution and storage of snow, and how it melts and contributes to water resources in various regions. Snow hydrology plays a critical role in water resource management, flood forecasting, and climate change research. It involves a combination of field measurements, remote sensing, modeling, and data analysis techniques to study snowpack dynamics and its impact on water availability.