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Reconciling precipitation trends in Alaska: 1. Station-based analyses

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Last Update
2013-08-29
Publication Date
2013-08-29

Citation

Arctic Landscape Conservation Cooperative(administrator), 2013-08-29(lastUpdate), 2013-08-29(Publication), Reconciling precipitation trends in Alaska: 1. Station-based analyses, http://arcticlcc.org/products/42b16600-182b-431b-8960-c9313b573606

Summary

Numerous studies have evaluated precipitation trends in Alaska and come to different conclusions. These studies differ in analysis period and methodology and do not address the issue of temporal homogeneity. To reconcile these conflicting results, we selected 29 stations with largely complete monthly records, screened them for homogeneity, and then evaluated trend over two analysis periods (1950–2010 and 1980–2010) using three methods: least absolute deviation regression, ordinary least squares regression (with and without transformation), and Mann-Kendall trend testing following removal of first-order autocorrelation. We found that differences in analytical period had a significant impact on trends and that the presence of inhomogeneities [...]

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urn:uuid urn:uuid 42b16600-182b-431b-8960-c9313b573606

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