noaa-tree-23656 Routson - Summitville - PIAR - ITRDB CO656 Routson, C.; Woodhouse, C.A.; Overpeck, J.T. Routson - Summitville - PIAR - ITRDB CO656 2018-02-28 NCDC-Paleoclimatology ONLINE Files 10.25921/txqr-er35 https://www.ncdc.noaa.gov/paleo/study/23656 Investigator C. Routson Investigator C.A. Woodhouse Investigator J.T. Overpeck earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV001A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV013B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV021B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV023A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV025A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV036B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV038B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV005A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV008C; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV021C; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV030A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV040A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV041A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring tree ring standardized growth index,null,null,null,null,tree ring,composited,standard,N,null earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV053A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV006B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV032A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring number of samples,null,null,count,null,tree ring,null,null,N,null earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV024A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV039A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV044A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV007B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV035A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV045A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring age,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring tree ring standardized growth index,null,null,null,null,tree ring,composited,residual,N,null earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV011B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV037D; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV043B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV050A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring tree ring standardized growth index,null,null,null,null,tree ring,composited,ARSTAN,N,null earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV027C; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV042A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV043A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: SMV047A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree-ring width geoscientificInformation PIAR Pinus aristata Engelm. Rocky Mountain bristlecone pine -268 AD 2009 AD 2218 cal yr BP -59 cal yr BP Complete 37.437236 37.437236 -106.631074 -106.631074 3560 3560 Continent North America United States Of America Colorado Summitville>LATITUDE 37.437236>LONGITUDE -106.631074 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

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII Cody C. Routson, Connie A. Woodhouse, Jonathan T. Overpeck 2011 Geophysical Research Letters L22703 38 22 10.1029/2011GL050015 https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2011GL050015

A new tree‐ring record from living and remnant bristlecone pine (Pinus aristata) wood from the headwaters region of the Rio Grande River, Colorado is used in conjunction with other regional records to evaluate periods of unusually severe drought over the past two millennia (B.C. 268 to A.D. 2009). Our new record contains a multi‐century period of unusual dryness between 1 and 400 A.D., including an extreme drought during the 2nd century. Characterized by almost five decades of drought (below average ring width), we hypothesize this megadrought is equally, if not more severe than medieval period megadroughts in this region. Published paleoclimate time series help define the spatial extent, severity, and potential causes of the 2nd century megadrought. Furthermore, this early period of unusual dryness has intriguing similarities to later medieval period aridity. Our findings suggest we should anticipate similar severe drought conditions in an even warmer and drier future. STUDY NOTES: NOAA Template Chronology file added 2019-07-05. NOAA Template Raw Measurements file added 2019-07-05.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/co656r-noaa.crn Chronology - NOAA Template File; co656r-noaa.crn GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/co656-noaa.rwl Raw Measurements - NOAA Template File; co656-noaa.rwl GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/co656a.crn GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/co656-noaa.crn Chronology - NOAA Template File; co656-noaa.crn GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/co656r.crn GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/co656.crn GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/co656.rwl GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/co656.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/co656a-noaa.crn Chronology - NOAA Template File; co656a-noaa.crn USA/NOAA DIF Version 9.8.4 2019-07-05 2019-07-05