alexa Classification of regional climate variability in the state of California.
Environmental Sciences

Environmental Sciences

Journal of Ecosystem & Ecography

Author(s): John T Abatzoglou, Kelly T Redmond, Laura M Edwards

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A novel approach is presented to objectively identify regional patterns of climate variability within the state of California using principal component analysis on monthly precipitation and temperature data from a network of 195 climate stations statewide and an ancillary gridded database. The confluence of large-scale circulation patterns and the complex geography of the state result in 11 regional modes of climate variability within the state. A comparison between the station and gridded analyses reveals that finescale spatial resolution is needed to adequately capture regional modes in complex orographic and coastal settings. Objectively identified regions can be employed not only in tracking regional climate signatures, but also in improving the understanding of mechanisms behind regional climate variability and climate change. The analysis has been incorporated into an operational tool called the California Climate Tracker.

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This article was published in J Appl Meteorol and referenced in Journal of Ecosystem & Ecography

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