Editing Snowmelt runoff contribution (section)

== Monitoring and Measurement ==
Monitoring snowmelt runoff contribution involves a combination of hydrologic, glaciological, and meteorological observations. Key methods include river discharge measurements at basin outlets, snowpack surveys, glacier mass balance assessments, and remote sensing techniques. Institutions such as the National Snow and Ice Data Center (NSIDC) and the World Glacier Monitoring Service (WGMS) provide critical datasets on snow and ice conditions.

Hydrological models are often employed to estimate the proportion of runoff originating from snow and glacier melt by integrating temperature, precipitation, and snowpack data. Remote sensing platforms enable spatially extensive monitoring of snow cover extent and glacier changes, while in situ measurements provide ground truth data. Advances in satellite observations and modeling continue to improve the accuracy and resolution of snowmelt runoff estimates.

Within the SIGNAL system, this phenomenon is treated as a defined environmental signal whose boundaries and measurement conventions are described below.