Can the actual display of snow be shown as a map? Like snow border - snow depth - scDs snow levels - snow covered days - to find out the water storage in the seasons?
Snow is a form of precipitation that behaves differently from other forms of precipitation due to the time delay between its occurrence and the time of runoff production and feeding of the underground water table. It is very important to study and measure changes in snow levels as one of the important sources of water supply. Due to the harsh physical conditions of mountainous environments, it is not possible to make permanent measurements on the ground to estimate the sources of snow and create a database. The use of satellite images and remote sensing due to their low cost, up-to-dateness and wide coverage is a way forward in this field and can be a suitable method for identifying snow catchment areas and evaluating its changes to achieve this goal. The area of snow cover is a very important parameter for the hydrological and climatological cycle. Its reflection caused by the whiteness above the snow causes the snow surfaces to return most of the radiant energy of the sun. Due to the high heat capacity of snow, snow surfaces protect the soil surface from the atmosphere and reduce the warming process in spring; Therefore, snow plays a direct role in microclimate and macroclimate scale atmospheric circulation models by affecting energy absorption and basin warming. Snow cover and soil moisture are the most important variables in the heat and moisture exchange process between the earth and the atmosphere. The presence of snow in the basin has a great effect on the moisture on the surface and as a result the runoff flow. Snow-covered surfaces undergo rapid and heterogeneous changes due to climatic and topographical factors. Most of the efficient methods of monitoring the snow extent are with the help of remote monitoring by satellites. The physical characteristics of snow have made it possible to monitor this phenomenon through remote sensing. Satellite is the best tool that can measure the snow cover of vast areas that can be determined by ground methods. It is not possible to show in different times (Simpson and State). The presence of snow in the catch basins is not only effective on the local and regional climate, but also affects the water resources that are stored in the form of frozen water on the surface. Therefore, temporal and spatial monitoring of snow cover has been used for hydrological forecasts for years. The use of satellite image data is effective in determining daily changes in snow cover, snow temperature, snow water depth and flood forecasting.
Take a look at:
U.S. National Weather Service
National Operational Hydrologic Remote Sensing Center at:
https://www.nohrsc.noaa.gov/nsa/
also:
U.S. The Natural Resources Conservation Service, National Water and Climate Center
https://www.nrcs.usda.gov/resources/data-and-reports/snow-and-water-interactive-map