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- Title
Trends in Twentieth-Century U.S. Snowfall Using a Quality-Controlled Dataset.
- Authors
Kunkel, Kenneth E.; Palecki, Michael; Ensor, Leslie; Hubbard, Kenneth G.; Robinson, David; Redmond, Kelly; Easterling, David
- Abstract
A quality assessment of daily manual snowfall data has been undertaken for all U.S. long-term stations and their suitability for climate research. The assessment utilized expert judgment on the quality of each station. Through this process, the authors have identified a set of stations believed to be suitable for analysis of trends. Since the 1920s, snowfall has been declining in the West and the mid-Atlantic coast. In some places during recent years the decline has been more precipitous, strongly trending downward along the southern margins of the seasonal snow region, the southern Missouri River basin, and parts of the Northeast. Snowfall has been increasing since the 1920s in the lee of the Rocky Mountains, the Great Lakes–northern Ohio Valley, and parts of the north-central United States. These areas that are in opposition to the overall pattern of declining snowfall seem to be associated with specific dynamical processes, such as upslope snow and lake-effect snow that may be responding to changes in atmospheric circulation.
- Subjects
UNITED States; TREND analysis; SNOW measurement; CLIMATE research; ATMOSPHERIC circulation; COASTS; RIVERS
- Publication
Journal of Atmospheric & Oceanic Technology, 2009, Vol 26, Issue 1, p33
- ISSN
0739-0572
- Publication type
Article
- DOI
10.1175/2008JTECHA1138.1