Waiting for the snow to melt…
These are maps of annual accumulated snow-free growing potential (snow-free growing degree days, SFGDD) for the Upper Gunnison domain, derived from daily maximum temperature maps interpolated from weather station and microclimate sensor data combined with Landsat-derived estimates of the timing of seasonal snowpack departure and onset. The original daily maps are also available. Snow-free growing degree-days were accumulated in the 60 days after the disappearance of seasonal snowpack. In the absence of snow, the accumulation period started on day-of-year 60 (March 1st in a non-leap year). To compute SFGDD, daily estimates of temperatures above a base of 5 degrees Celcius (a minimum growth threshold for many plants) were summed across all days estimated to be free of snow cover. Because snowpack insulates the ground surface and soil from low temperatures, this estimate can be a more appropriate measure of freezing potential for snow-dominated climates. These maps represent annual values. 20-year means computed from 2002 to 2021 are also available.
Knowledge graph centered on Upper Gunnison 2m Air Temperature Snow-free Growin with 4 nodes and 6 connections. Top connected: Upper East River Beaver Pond, Satellite-based snow disappearance tracking, Random Forest climate downscaling.
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