Snow cover extent can be followed over the seasons and years for which MODIS or SPOT hyper-temporal imagery is available. Although fire, forest and vegetation landscape were my research object, I did have a cursory look at snow cover dynamics in the same area. Multi-temporal LANDSAT winter images may also provide a first idea; however, in my experience you will find rarely more than three years with cloud-free images of a comparable season.
MODIS data is widely used for snow extend/cover analysis, Similarly Landsat and SPOT can also be used but both of them have limited spatial extend so MODIS could be better choice. The possible trouble could be clouds if you are interested at fine temporal resolution.
Behrooz - you might wish to contact Prof. Richard Kelly at the University of Waterloo ([email protected]) - see https://uwaterloo.ca/geography-environmental-management/people-profiles/richard-kelly for more info.
you can have a look on these two article:
Snehmani , Anshuman Bhardwaj , Mritunjay Kumar Singh , R.D. Gupta , Pawan Kumar Joshi , Ashwagosha Ganju (2014). Modelling the hypsometric seasonal snow cover using meteorological parameters. Journal of Spatial Science.
Snehmani , Mritunjay Kumar Singh , R.D. Gupta , Anshuman Bhardwaj , Pawan Kumar Joshi (2014). Remote sensing of mountain snow using active microwave sensors: a review.Geocarto International ,Vol. 30, Iss. 1.
http://www.tandfonline.com/doi/abs/10.1080/14498596.2014.943310#.VKrE1CuUdD8
http://www.tandfonline.com/doi/abs/10.1080/10106049.2014.883434#.VKrE1CuUdD8
Dear Behrooz Arastoo, you can use Globsnow (European Satellite-based) data product for snow cover analysis.
It is important that you consider scale. Globsnow products are low resolution (25 km i believe). MODIS products are 500 m ! These map different parameters; the former snow water equivalent, the latter snow covered area. However, Synthetic Aperture Radar is used for melt onset and melt extent mapping at resolutions below 100 m. Landsat and SPOT type sensors are used to map Snow Covered Area (or Fraction Covered Area) at high spatial but low temporal resolution.
GlobSnow is found here: http://www.globsnow.info/index.php?page=Data
MODIS MOD10 data are available from the NASA REVERB Site: http://reverb.echo.nasa.gov/
Landsat is available from USGS Earth Explorer: http://earthexplorer.usgs.gov/ SAR data can be acquired from the Alaska Satellite Facility ( asf.alaska.edu ) or European Space Agency ( https://earth.esa.int/web/guest/pi-community )
Behrooz - you might wish to see EHRIN Program and methods used to estimate snow cover.
http://www.magrama.gob.es/en/agua/temas/evaluacion-de-los-recursos-hidricos/erhin/datos-interes/