noaa-lake-26930 Lake Elsinore, California 32-10ky Physical Properties and Pollen Data Kirby, M.E.; Heusser, L.E.; Scholz, C.A.; Ramezan, R.; Anderson, M.A.; Markle, B.R.; Rhodes, E.; Glover, K.C.; Fantozzi, J.M.; Hiner, C.A.; Price, B.; Rangel, H. Lake Elsinore, California 32-10ky Physical Properties and Pollen Data 2019-05-31 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/26930 Investigator M.E. Kirby Investigator L.E. Heusser Investigator C.A. Scholz Investigator R. Ramezan Investigator M.A. Anderson Investigator B.R. Markle Investigator E. Rhodes Investigator K.C. Glover Investigator J.M. Fantozzi Investigator C.A. Hiner Investigator B. Price Investigator H. Rangel earth science paleoclimate paleolimnology population abundance earth science paleoclimate paleolimnology physical properties geoscientificInformation 32292 cal yr BP 6756 cal yr BP Complete 33.6733 33.6733 -117.3542 -117.3542 379 379 Continent North America United States Of America California Lake Elsinore>LATITUDE 33.6733>LONGITUDE -117.3542 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII M.E. Kirby, L. Heusser, C. Scholz, R. Ramezan, M.A. Anderson, B. Markle, E. Rhodes, K.C. Glover, J. Fantozzi, C. Hiner, B. Price, H. Rangel 2018 Journal of Quaternary Science 33 2 238-254 10.1002/jqs.3018 https://onlinelibrary.wiley.com/doi/abs/10.1002/jqs.3018

Continuous, sub-centennially resolved, paleo terrestrial records are rare from arid environments such as the Pacific south-west United States. Here, we present a multi-decadal to centennial resolution sediment core (Lake Elsinore, CA) to reconstruct late Wisconsin pluvials, droughts and vegetation. In general, the late Wisconsin is characterized by a wetter and colder climate than during the Holocene. Specifically, conditions between 32.3 and 24.9k cal a BP are characterized by large-amplitude hydrologic and ecologic variability. Highlighting this period is a ~2000-year glacial mega-drought (27.6-25.7k cal a BP) during which the lake shallowed (3.2-4.5m depth). This period is approximately coeval with a Lake Manix regression and an increase in xeric vegetation in the San Bernardino Mountains (Baldwin Lake). The Local Last Glacial Maximum (LLGM) is bracketed between 23.3 and 19.7k cal a BP - a ~3000-year interval characterized by reduced run-off (relative to the glacial), colder conditions and vegetative stability. Maximum sustained wetness follows the LLGM, beginning at 19.7 and peaking by 14.4k cal a BP. A two-step decrease in runoff characterizes the Lateglacial to Holocene transition; however, the vegetation change is more complex, particularly at the beginning of the Younger Dryas chronozone. By 12.6-12.4k cal a BP, the climate achieved near Holocene conditions. STUDY NOTES: Sediment physical properties and pollen data from Lake Elsinore, California for 32-10ky.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/california/elsinore2018physprop.txt NOAA Template File; Lake Elsinore Physical Properties Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/california/elsinore2018pollen.txt NOAA Template File; Lake Elsinore Pollen Data USA/NOAA DIF Version 9.8.4 2019-06-03 2019-06-03