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- PP33C-1085: A spatial field reconstruction of warm-season maximum temperatures for eastern North America: a new paleoclimate data product for evaluating temperature-hydroclimate relationships over the late Holocene
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Board 1085‚ Hall EFG (Poster Hall)NOLA CC
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Karen King, University of Tennessee (First Author, Presenting Author)
Edward Cook, Lamont-Doherty Earth Observatory
Kevin Anchukaitis, University of Arizona
Grant Harley, University of Idaho
Justin Maxwell, Indiana University
The observational and modeling climate records document substantial hydroclimate change across eastern North America over the last century. As the global climate warms, changes in hydroclimate are expected to further increase. However, regional variation in the relationship between temperature and drought prior to the beginning of the 20th century is not well understood, especially in mid-latitude regions with humid climates. To improve understanding of temperature-drought interactions in eastern North America, we use a network of temperature-sensitive tree-ring records to create a 0.5o spatial field reconstruction of warm season maximum temperatures, spanning the last several centuries. This new temperature reconstruction dataset is completely data-independent of existing spatial field drought and precipitation reconstruction datasets, and thus, allows for the direct evaluation of temperature-drought relationships over the last several centuries. Here we discuss the development and application of this new paleoclimate data product for an improved understanding of late-Holocene drought dynamics across eastern North America.
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