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    Total Snow accumulation forecasts

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    • DAVEMatthewsD
      DAVEMatthews
      last edited by

      How accurate are the ECMWF total new snow forecasts? at 3 days? 10days? Has anyone evaluated these. I find them fascinating, with maximum I have seen at 543 cm in 10 days on the SE mountains of Greenland. The Andes also have been collecting 2-3 meters of snow in many of these forecasts from June to December. If these are valid, then perhaps we are rebuilding the glaciers?? I watch these forecasts every day. These maximum amounts are also quite sensitive to elevations and appear below the resolution of a 9 km dx model.

      idefix37I 1 Reply Last reply Reply Quote 0
      • idefix37I
        idefix37 Sailor Moderator @DAVEMatthews
        last edited by

        @davematthews
        The snow accumulation is not accurate when it’s too close to the rain/now limit. It is often overrated. For very cold region, I it’s may better.
        In the Alps we have commonly 2-3 m of snow above 2000-3000m and more, but the glaciers are still melting. What is needed to « rebuild » them, is lower annual mean temperatures. Snow accumulation is one parameter to have glaciers, but the second is a shorter melting season.

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        • DAVEMatthewsD
          DAVEMatthews
          last edited by

          HOW DOES THE SNOW depth and density verify with observations?

          Gkikas LGPZG 2 Replies Last reply Reply Quote 0
          • Gkikas LGPZG
            Gkikas LGPZ Moderator @DAVEMatthews
            last edited by

            @davematthews
            It is a very good research question for a PhD thesis !

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            • Gkikas LGPZG
              Gkikas LGPZ Moderator @DAVEMatthews
              last edited by

              @davematthews
              for further reading (about ECMWF)
              https://www.ecmwf.int/en/forecasts/quality-our-forecasts

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