The twentieth century was the wettest period in northern Pakistan over the past millennium

noaa-tree-20904 Karakorum Mountains, Pakistan 1000 Year Tree Ring Stable Isotope Data Treydte, K.; Schleser, G.H.; Helle, G.; Frank, D.C.; Winiger, M.; Haug, G.H.; Esper, J.; Saurer, M. Karakorum Mountains, Pakistan 1000 Year Tree Ring Stable Isotope Data 2010-06-01 NCDC-Paleoclimatology ONLINE Files 10.25921/gtvq-9z90 https://www.ncdc.noaa.gov/paleo/study/20904 Investigator K. Treydte Investigator G.H. Schleser Investigator G. Helle Investigator D.C. Frank Investigator M. Winiger Investigator G.H. Haug Investigator J. Esper Investigator M. Saurer earth science paleoclimate tree ring delta 18O,cellulose,null,per mil VSMOW,null,tree ring,composited,isotope ratio mass spectrometry,N,obtained by pooling the rings of the same trees before single-series measurements earth science paleoclimate tree ring delta 18O,cellulose,null,per mil VSMOW,null,tree ring,null,isotope ratio mass spectrometry,N,null earth science paleoclimate tree ring delta 13C,cellulose,null,per mil VPDB,null,tree ring,composited,isotope ratio mass spectrometry,N,arithmetic means of five single trees earth science paleoclimate tree ring age,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree ring delta 13C,cellulose,null,per mil VPDB,null,tree ring,null,isotope ratio mass spectrometry,N,null earth science paleoclimate tree-ring carbon isotopes earth science paleoclimate tree-ring oxygen isotopes geoscientificInformation precipitation JUEX Juniperus excelsa M.-Bieb. Greek juniper Grecian juniper 950 AD 1998 AD 1000 cal yr BP -48 cal yr BP Complete 35.9 36.6167 74.9333 74.9833 3050 3900 Continent Asia Southcentral Asia Pakistan Boibar Valley 1>LATITUDE 36.6167>LONGITUDE 74.9833 Continent Asia Southcentral Asia Pakistan Bagrot Valley 3>LATITUDE 35.9>LONGITUDE 74.9333 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 Kerstin S. Treydte, Gerhard H. Schleser, Gerhard Helle, David C. Frank, Matthias Winiger, Gerald H. Haug and Jan Esper 2006 The twentieth century was the wettest period in northern Pakistan over the past millennium Nature 440 7088 1179-1182 10.1038/nature04743 http://www.nature.com/nature/journal/v440/n7088/abs/nature04743.html Kerstin S. Treydte, David C. Frank, Matthias Saurer, Gerhard Helle, Gerhard H. Schleser, Jan Esper 2009 Impact of climate and CO2 on a millennium-long tree-ring carbon isotope record Geochimica et Cosmochimica Acta 73 16 4635-4647 10.1016/j.gca.2009.05.057 http://www.sciencedirect.com/science/article/pii/S0016703709003743

Twentieth-century warming could lead to increases in the moisture-holding capacity of the atmosphere, altering the hydrological cycle and the characteristics of precipitation. Such changes in the global rate and distribution of precipitation may have a greater direct effect on human well-being and ecosystem dynamics than changes in temperature itself. Despite the co-variability of both of these climate variables, attention in long-term climate reconstruction has mainly concentrated on temperature changes. Here we present an annually resolved oxygen isotope record from tree-rings, providing a millennial-scale reconstruction of precipitation variability in the high mountains of northern Pakistan. The climatic signal originates mainly from winter precipitation, and is robust over ecologically different sites. Centennial-scale variations reveal dry conditions at the beginning of the past millennium and through the eighteenth and early nineteenth centuries, with precipitation increasing during the late nineteenth and the twentieth centuries to yield the wettest conditions of the past 1,000 years. Comparison with other long-term precipitation reconstructions indicates a large-scale intensification of the hydrological cycle coincident with the onset of industrialization and global warming, and the unprecedented amplitude argues for a human role. STUDY NOTES: Oxygen and carbon stable isotope data from tree rings collected in the Karakorum Mountains, northern Pakistan, for the past century and millennium. IITRDB17

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/asia/pakistan/karakorum2006iso.txt Text Data File; Karakorum Tree Ring Stable Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/asia/pakistan/karakorum2006iso.xls Excel Data File; Karakorum Tree Ring Stable Isotope Data USA/NOAA DIF Version 9.8.4 2019-03-01 2019-03-01