Hydrology

Description of the snowfall trend in the study area in Sierra Nevada which cover a total of 4583.72Km2.  This information is needed to analyze the change in the study period, which include 40 year of study (1961-2000), and to know which are the most most affected by the loss of snow.

The average annual snowfall distributed in Sierra Nevada Mountains (4583.72 Km2) for the period 1961-2000 is represented in this map. This variable is expressed in accumulative mm per year.

This map describes the average annual precipitation (mm) distributed in the Sierra Nevada area for the 1961-2000 study period. The study area covers a total of 4583.72 km2. The map were obtained through the interpolation of data observed in the meteorological stations available in the area.