New snow in the high country

Along with other activities at my workplace, I also participate in snow surveys. This means that during the last five days of January, February, March, and April, I and several other federal employees fan out across different parts of the mountains surrounding the San Luis Valley to measure snow depth and water content. These surveys take place at specific locations, which--for Colorado--may be viewed at the link below: http://www.wcc.nrcs.usda.gov/snotel/Colorado/colorado.html.

Yesterday was my first day on snow survey for 2009, and two of us traveled by snowmobile up to the Big Meadows manual snow course site, and the Grayback SNOTEL site http://www.wcc.nrcs.usda.gov/snotel/snotel.pl?sitenum=1058&state=co. Both of these sites are in the eastern San Juan Mountains. At the Grayback site we took measurements of snow depth and water density both at the automated SNOTEL site and at the manual Snow Course located nearby. At the Grayback SNOTEL site, there are currently 49.6" of snow, with a Snow Water Equivalent of 15.4".

The difference between a SNOTEL site and a manual snow course is that at the latter, the snow depth and water content measurements are recorded manually by trained observers, and at the SNOTEL sites, the snow & water information is measured and transmitted automatically. SNOTEL is an acronym which stands for SNOwpack TELemetry.

There are manual snow courses and SNOTEL sites scattered throughout all Western states, and measurements are taken by an assortment of Federal, State, and other employees. The data resulting from all snow surveys, whether manual or automated, are used for water forecasting for agriculture, recreation, flood control, and more.