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Historical Trends of Mountain Weather The AMC is working collaboratively with the Mount Washington Observatory (MWO) and Plymouth State University to assess long-term weather (e.g. climate) and air pollutant trends and their influence on New England's high-elevation alpine ecosystems. This work is supported by NOAA's Office of Oceanic and Atmospheric Research. To date we have reviewed temperature and snow melt timing data collected at the Mount Washington summit (1,916 m) and at Pinkham Notch (614 m). Similar to regional studies at lower elevations our analysis show that the Pinkham Notch site has warmed and snow melt is earlier over the 70 year record, however to a lesser degree than regionally. The higher elevation site, Mount Washington summit, shows no statistical warming or change in snow melt timing. Factors for the elevational differences may include temperature inversions, being in the free atmosphere at least a portion of the year and sufficient atmospheric moisture availability to result in frequent cloud or fog exposure on the upper slopes. What future regional climatic temperature increases would be sufficient to alter these dynamics is unknown. Learn More> |
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