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Changes in Snowfall in the Southern Sierra Nevada of California since 1916

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  • John R. Christy
  • Justin J. Hnilo

Abstract

A time series (1916–2009) of annual snowfall totals for Huntington Lake (HL, elev. 2141 m) in the southern Sierra Nevada of California is reconstructed. A reconstruction is (a) necessary because HL data after 1972 are mostly missing and (b) possible because nearby stations reveal high correlations with HL, two above 0.90. The results show mean annual snowfall in HL is 624 cm with an insignificant trend of +0.5 cm (+0.08%) ±13.1 cm decade −1 . Similar positive but insignificant trends for spring snowfall were also calculated. Annual stream flow and precipitation trends for the region again were insignificantly positive for the same period. Snow-water-equivalent comparisons, measured on 1 Apr since 1930 at 26 sites and since 1950 at 45, show similar small, mostly positive, and insignificant trends. These results combined with published temperature time series, which also reveal no significant trends, form a consistent picture of no remarkable long-term changes in the snowfall of this area and elevation of the southern Sierra Nevada of California since the early 20 th century.

Suggested Citation

  • John R. Christy & Justin J. Hnilo, 2010. "Changes in Snowfall in the Southern Sierra Nevada of California since 1916," Energy & Environment, , vol. 21(3), pages 223-234, July.
    • Handle: RePEc:sae:engenv:v:21:y:2010:i:3:p:223-234
    DOI: 10.1260/0958-305X.21.3.233
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