noaa-tree-11915 White Mountains Bristlecone Pine d13C and Precipitation Reconstruction Bale, R.J.; Robertson, I.; Salzer, M.W.; Loader, N.J.; Leavitt, S.W.; Gagen, M.; Harlan, T.P.; McCarroll, D. White Mountains Bristlecone Pine d13C and Precipitation Reconstruction 2011-07-22 NCDC-Paleoclimatology ONLINE Files 10.25921/mrrh-am24 https://www.ncdc.noaa.gov/paleo/study/11915 Investigator R.J. Bale Investigator I. Robertson Investigator M.W. Salzer Investigator N.J. Loader Investigator S.W. Leavitt Investigator M. Gagen Investigator T.P. Harlan Investigator D. McCarroll earth science paleoclimate tree ring delta 13C,alpha cellulose,null,per mil VPDB,null,tree ring,corrected,isotope ratio mass spectrometry,N,"After correction for the isotopic composition of the atmosphere, a second correction (known as the PreINdustrial or PIN correction, which represents a change in ecophysiological response to rapidly rising concentrations of CO2) was applied to the fossil fuel corrected data" earth science paleoclimate tree ring delta 13C,alpha cellulose,null,per mil VPDB,null,tree ring,corrected,isotope ratio mass spectrometry,N,"corrected to a pre-industrial atmospheric d13C base value of -6.4 per mil using simple addition, compensating for the 'anthropogenic decline' from input to the atmosphere of 13C-depleted CO2 from fossil fuel combustion and land-use change" earth science paleoclimate tree ring delta 13C,alpha cellulose,null,per mil VPDB,null,tree ring,null,isotope ratio mass spectrometry,N,null earth science paleoclimate climate reconstructions|tree ring precipitation,null,null,centimeter,Jun-Aug,climate reconstructions|tree ring,null,null,N,null earth science paleoclimate tree ring age,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree-ring carbon isotopes geoscientificInformation Precipitation Reconstruction drought PILO Pinus longaeva D.K. Bailey = Pinus aristata var. longaeva Intermountain bristlecone pine 1085 AD 2005 AD 865 cal yr BP -55 cal yr BP Complete 37.45 37.45 -118.1667 -118.1667 3200 3200 Continent North America United States Of America California Blanco West>LATITUDE 37.45>LONGITUDE -118.1667 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 Bale, R.J., I. Robertson, M.W. Salzer, N.J. Loader, S.W. Leavitt, M. Gagen, T.P. Harlan, and D. McCarroll. 2011. An annually resolved bristlecone pine carbon isotope chronology for the last millennium. Quaternary Research, Vol. 76, Issue 1, pp 22-29, July 2011. doi:10.1016/j.yqres.2011.05.004

We present the first near millennium-length, annually resolved stable isotope record from bristlecone pines (Pinus longaeva, D.K Bailey). The carbon isotope ratios from the cellulose of seven trees from the White Mountains of California, corrected for anthropogenic changes in atmospheric chemistry, are used to reconstruct growing season (June through August) precipitation back to AD 1085. Extremely negative isotope results are strongly correlated with proposed severest El Niño events over the last 500 yr, and similar values in the first half of the millennium are used to reconstruct a further 13 strong El Niño events, concentrated in the 12th Century and the mid 13th and 14th Centuries. Ring-width chronologies from adjacent sites in the White Mountains demonstrate a high degree of decadal covariance with the d13C series, although there are several periods of notable divergence. STUDY NOTES: Carbon isotope data and precipitation reconstruction for the last 920 years from bristlecone pine tree rings collected in the White Mountains, California, USA. Two corrections are applied to the raw d13C data prior to precipitation reconstruction, and the two corrected series plus the original raw d13C series are provided in the data files. The raw d13C measurements were corrected to a pre-industrial atmospheric d13C base value of -6.4 per mil using simple addition, compensating for the 'anthropogenic decline' from input to the atmosphere of 13C-depleted CO2 from fossil fuel combustion and land-use change. After correction for the isotopic composition of the atmosphere, a second correction (known as the PreINdustrial or PIN correction, which represents a change in ecophysiological response to rapidly rising concentrations of CO2) was applied to the fossil fuel corrected data, producing a series used for palaeoclimate reconstruction. Blanco West tree ring site, White Mountains, California: 37°27'N, 118°10'W, ~3200m elevation. IITRDB003

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/northamerica/usa/california/blanco2011d13c.xls GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/northamerica/usa/california/blanco2011d13c.txt USA/NOAA DIF Version 9.8.4 2019-03-01 2019-03-01