noaa-cave-22058 Central California Deglacial Stalagmite Stable Isotope Data Oster, J.L.; Montañez, I.P.; Santare, L.R.; Sharp, W.D.; Wong, C.I.; Cooper, K.M. Central California Deglacial Stalagmite Stable Isotope Data 2017-05-05 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22058 Investigator J.L. Oster Investigator I.P. Montañez Investigator L.R. Santare Investigator W.D. Sharp Investigator C.I. Wong Investigator K.M. Cooper earth science paleoclimate speleothems depth,null,null,millimeter,null,speleothems,null,null,N,null earth science paleoclimate speleothems age,null,null,calendar year before present,null,speleothems,null,null,N,stalagmite ML1 earth science paleoclimate speleothems age,null,null,calendar year before present,null,speleothems,null,null,N,stalagmite MC3 earth science paleoclimate speleothems delta 13C,calcium carbonate,null,per mil PDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems delta 18O,calcium carbonate,null,per mil PDB,null,speleothems,raw,isotope ratio mass spectrometry,N,oxygen values are raw-uncorrected for sea level earth science paleoclimate speleothems carbon isotopes earth science paleoclimate speleothems oxygen isotopes geoscientificInformation 19390 cal yr BP 8702 cal yr BP Complete 38.07 38.0717 -120.4655 -120.42 300 520 Continent North America United States Of America California McLean's Cave>LATITUDE 38.07>LONGITUDE -120.42 Continent North America United States Of America California Moaning Cave>LATITUDE 38.0717>LONGITUDE -120.4655 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 Jessica L. Oster, Isabel P. Montañez, Laura R. Santare, Warren D. Sharp, Corinne Wong, Kari M. Cooper 2015 Quaternary Science Reviews 127 199-214 10.1016/j.quascirev.2015.07.027 http://www.sciencedirect.com/science/article/pii/S0277379115300627

The last deglaciation is marked by large and abrupt hydroclimatic changes in the Great Basin and the American Southwest. However, comparatively little is known about how hydroclimate varied on the western side of the Sierra Nevada. We present new evidence for abrupt changes in precipitation amount in the central Sierra Nevada during the last deglaciation. Our new record from McLean's Cave overlaps with a previously published record from nearby Moaning Cave (Oster et al., 2009), and extends the record of hydroclimatic change in the region through Heinrich Stadial 1. McLean's Cave speleothem d18O, d13C, Mg/Ca, and Sr/Ca indicate a shift to drier conditions at the beginning of Heinrich Stadial 1 from 16.1 to 17.5 ka followed by wetter conditions at the end of Heinrich Stadial 1 when the majority of Great Basin lakes reached their deglacial highstands. During the last deglaciation, coincident shifts in the Moaning and McLean's Cave proxy records indicate drier conditions in the western Sierra Nevada during millennial-scale intervals of warming at high latitudes such as the Bölling and Alleröd, and wetter conditions during cooler intervals such as the Older and Younger Dryas. Thus, the Sierra Nevada speleothem records are consistent with other regional records that document increased winter rainfall during millennial-scale cold periods of the last deglaciation. However, regional differences exist in the hydroclimatic response to the Younger Dryas, with central Californian and interior southwestern sites indicating an increase in winter storms that is not apparent in southern California. Dynamic simulations of atmospheric circulation indicate that wetter conditions during the Younger Dryas relative to the Bölling at McLean's Cave may have resulted from a stronger storm track in the north Pacific at the latitude of northern California. STUDY NOTES: Stable isotope (d13C and d18O) data from 2 stalagmites collected in Moaning Cave (MC3) and McLean's Cave (ML1), central California, for the last deglacial interval.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/california/mcleans2015iso.txt Formatted Text Data File; McLean's Cave Deglacial Stable Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/california/moaning2015iso.txt Formatted Text Data File; Moaning Cave Deglacial Stable Isotope Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11