# Puruogangri Ice Cap 7000 Year Isotope and Geochemical Data #---------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #---------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/11929 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-icecore-11929.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Ice Cores # # Dataset_DOI: 10.25921/3w5v-wm35 # # Science_Keywords: Monsoon #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/icecore/trop/puruogangri/puruogangri2006-core2-5yr-noaa.txt # Data_Download_Description: NOAA Template File; Five-year-averaged Data from Core 2 # #-------------------- # Contribution_Date # Date: 2011-08-23 #-------------------- # File_Last_Modified_Date # Date: 2023-07-14 #-------------------- # Title # Study_Name: Puruogangri Ice Cap 7000 Year Isotope and Geochemical Data #-------------------- # Investigators # Investigators: Thompson, L.G.(https://orcid.org/0000-0001-5371-2579); Yao, T.(https://orcid.org/0000-0002-8485-9140); Davis, M.E.(https://orcid.org/0000-0003-1049-5935); Mosley-Thompson, E.(https://orcid.org/0000-0002-9665-3705); Mashiotta, T.A.; Lin, P-N.(https://orcid.org/0000-0001-6006-0716); Mikhalenko, V.N.; Zagorodnov, V.S. #-------------------- # Description_Notes_and_Keywords # Description: Puruogangri ice core oxygen isotopes, dust, ice accumulation, major anions (chloride, nitrate, sulfate) and cations (sodium, ammonium, potassium, magnesium, and calcium), presented as meter, decadal, or centennial averages from 7.0 to 0 ky BP. # # Puruogangri Ice Cap, Tanggula Mountains, Tibetan Plateau: 33°55'N, 89°05'E, 6070 meters above sea level #-------------------- # Publication # Authors: Thompson, L.G., T. Yao, M.E. Davis, E. Mosley-Thompson, T.A. Mashiotta, P.-N. Lin, V.N. Mikhalenko, and V.S. Zagorodnov # Journal_Name: Annals of Glaciology # Published_Title: Holocene climate variability archived in the Puruogangri ice cap on the central Tibetan Plateau # Published_Date_or_Year: 2006 # Volume: 43 # Pages: 61-69 # Issue: 1 # Report_Number: # DOI: 10.3189/172756406781812357 # Full_Citation: # Abstract: Two ice cores (118.4 and 214.7 m in length) were collected in 2000 from the Puruogangri ice cap in the center of the Tibetan Plateau (TP) in a joint US-Chinese collaborative project. These cores yield paleoclimatic and environmental records extending through the Middle Holocene, and complement previous ice-core histories from the Dunde and Guliya ice caps in northeast and northwest Tibet, respectively, and Dasuopu glacier in the Himalaya. The high-resolution Puruogangri climate record since AD 1600 details regional temperature and moisture variability. The post-1920 period is characterized by above-average annual net balance, contemporaneous with the greatest 18O enrichment of the last 400 years, consistent with the isotopically inferred warming observed in other TP ice-core records. On longer timescales the aerosol history reveals large and abrupt events, one of which is dated ~4.7 kyr BP and occurs close to the time of a drought that extended throughout the tropics and may have been associated with centuries-long weakening of the Asian/Indian/African monsoon system. The Puruogangri climate history, combined with the other TP ice-core records, has the potential to provide valuable information on variations in the strength of the monsoon across the TP during the Holocene. #-------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: 0117113 #-------------------- # Site_Information # Site_Name: Puruogangri Ice Cap # Location: China # Northernmost_Latitude: 33.9167 # Southernmost_Latitude: 33.9167 # Easternmost_Longitude: 89.0833 # Westernmost_Longitude: 89.0833 # Elevation_m: 6070 #-------------------- # Data_Collection # Collection_Name: Puruogangri Core 2 5-year # First_Year: 1600 # Last_Year: 1999 # Time_Unit: year Common Era # Core_Length_m: # Parameter_Keywords: chemistry, oxygen isotopes # Notes: #-------------------- # Chronology_Information # Chronology: From Thompson et al. 2006: "The annually resolved timescale for the upper part of C2 was developed back to AD 1600 by counting peaks in the concentration of dust particles that are deposited during the late winter/early spring. The degree of uncertainty in the timescale increases with depth, from ±1 year above the 1962/63 horizon to ±15 years at AD 1600." #-------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by '##' in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## age_bot_CE ice age at sample start,,,year Common Era,,ice cores,,,N, ## age_top_CE ice age at sample end,,,year Common Era,,ice cores,,,N, ## d18Osmow delta 18O,bulk ice,,per mil SMOW,,ice cores,averaged,isotope ratio mass spectrometry,N, ## accum accumulation rate,bulk ice,,centimeter per year,,ice cores,,,N,ice equivalent ## dust_conc dust,bulk ice,,unspecified unit,,ice cores,averaged,,N,0.63-20um diameter ## F_ppb fluoride,bulk ice,,parts per billion,,ice cores,averaged,,N, ## Cl_ppb chloride,bulk ice,,parts per billion,,ice cores,averaged,,N, ## SO4_ppb sulfate,bulk ice,,parts per billion,,ice cores,averaged,,N, ## NO3_ppb nitrate,bulk ice,,parts per billion,,ice cores,averaged,,N, ## Na_ppb sodium,bulk ice,,parts per billion,,ice cores,averaged,,N, ## NH4_ppb ammonium,bulk ice,,parts per billion,,ice cores,averaged,,N, ## K_ppb potassium,bulk ice,,parts per billion,,ice cores,averaged,,N, ## Mg_ppb magnesium,bulk ice,,parts per billion,,ice cores,averaged,,N, ## Ca_ppb calcium,bulk ice,,parts per billion,,ice cores,averaged,,N, #-------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: age_bot_CE age_top_CE d18Osmow accum dust_conc F_ppb Cl_ppb SO4_ppb NO3_ppb Na_ppb NH4_ppb K_ppb Mg_ppb Ca_ppb 1995 1999 -14.24 42.15 259185 15.1 230.5 233.9 146 214.7 94.4 21.4 56.8 981.3 1990 1994 -16.14 19.96 252504 8 585.2 663.1 248.4 590.2 107.2 37.5 113.5 1794.9 1985 1989 -13.49 53.02 539156 9.7 465.9 465.9 140.5 411.8 124.9 39.1 98.2 1925.7 1980 1984 -14.13 32.26 185075 7.1 354.1 403.5 247.1 337.7 125.5 30.3 90.7 1591.4 1975 1979 -15.55 50.72 142475 7.7 577.9 810.4 361.5 646.9 130.1 42 139.4 1702.3 1970 1974 -14.89 33.23 281916 4.9 398.8 562.9 240.4 399.9 123.4 33.2 116.6 1930.6 1965 1969 -13.99 43.47 134683 14.5 316 455.9 251.5 353 97.8 26.8 99.9 1824 1960 1964 -15.29 48.39 475271 14.7 391 598.7 236.6 439.4 98.9 29.1 101.5 1771.6 1955 1959 -14.42 48.6 203848 13.1 406.8 455.3 234.2 398.3 121.3 33.3 100.8 2273.5 1950 1954 -13.48 40.93 334012 9.5 297.1 233.5 137.2 265.5 90.1 19.5 73 1479.9 1945 1949 -14.72 39.8 184455 10.2 308.7 515.3 259.6 343.7 109.1 29.7 137.7 2167.6 1940 1944 -15.2 42.31 158412 10.5 407.7 564.5 322 463.5 114.3 35.2 142.3 2289.1 1935 1939 -14.84 43.5 275368 8.4 549.6 483.7 328.5 482.1 201.2 31.7 134.1 2199.7 1930 1934 -14.71 41.67 390860 8.1 470.7 640.9 268.8 468.4 129.6 35.1 134.3 1864.3 1925 1929 -13.97 36.45 323692 6.5 446.5 594.5 227.8 433 119.4 28.3 128.4 2459.1 1920 1924 -13.41 42.33 266436 6 449.6 709.9 344.5 468 137.6 42.9 168.4 3102.3 1915 1919 -14.33 29.96 194590 5.8 663.7 1148.5 479.3 732.8 163.6 63.1 219 3153.3 1910 1914 -17.06 24.1 436427 4.8 752.1 1111.1 372.8 716.4 142.8 57.8 207.4 2765.1 1905 1909 -16.4 29.18 206077 6.2 303.9 338 143.7 296.3 85 22.2 75.9 1827.9 1900 1904 -16.78 52.51 197169 5.4 446.2 566 220.4 441.3 108.8 38 146.9 2121.2 1895 1899 -14.98 30.83 208551 5.8 1042.3 839.9 319.2 1013.2 116.6 58.2 150.1 3116.6 1890 1894 -16.45 38.46 273563 4.9 494.7 476.4 220.6 476.5 126.9 30.7 130.4 2092.1 1885 1889 -16.05 48.62 140440 4.5 509.9 735.8 311.5 560.7 119.4 40.2 149.1 2070.6 1880 1884 -16.34 23.79 365224 5.4 580.5 938.7 315.3 638.1 128.5 49.3 182.7 2734.4 1875 1879 -13.46 18.47 236874 5.6 493.2 581.4 203.8 462.2 116 33.5 121.8 1903.8 1870 1874 -13.94 47.98 221861 5 755.8 757 269.2 709.1 142.9 44.9 128.2 2245 1865 1869 -15.81 26.5 516152 7.4 775.7 971 313 832.3 127.5 56.8 198.5 2367 1860 1864 -14.14 32.31 367704 9 1223.8 1384.6 278.5 1124.4 113.6 73.3 200.7 2122.8 1855 1859 -14.73 28.54 419556 5.6 549.1 755.7 272 599.2 124.5 43.8 154.8 1949.8 1850 1854 -14.77 37.47 283173 4.4 545 728.8 262.7 599.6 100.2 45 130.4 1800.6 1845 1849 -16.03 38.67 203254 4.4 621.1 1000.5 299.9 658.6 119.4 49.3 154.6 1917.5 1840 1844 -16.22 31.27 261714 4.8 791.5 1479.3 386.5 895 132.2 67.4 277.7 2315.4 1835 1839 -14.54 26.65 355619 4.8 704.8 689.5 255.5 654.4 117.5 40.5 120.8 1569.8 1830 1834 -13.66 20.73 304453 3.7 518 927.5 340.2 561 126.2 43 145.7 1963.5 1825 1829 -15.27 22.77 278107 5.7 652.6 858.6 220.2 645.4 94.5 42.8 163.1 1395.8 1820 1824 -14.47 23.53 368733 4.8 746.4 615.9 160.4 656.9 104.2 31.2 112.8 1288.1 1815 1819 -16.3 23.83 406999 5.4 715.8 517.3 190.4 611.7 105.3 43.1 140.8 1832.4 1810 1814 -15.7 31.11 312962 4.5 476.4 339.7 150.4 402.9 93.2 28.8 86.8 1708.3 1805 1809 -15.09 29.35 410077 4.6 866.4 1091.9 384.6 867.5 133.4 57.9 214.7 2021.7 1800 1804 -14.75 46.16 369027 4.5 716.6 856.9 308.6 706.4 140 49.8 166.8 2024.9 1795 1799 -15.11 27.62 294394 5.1 954.2 849.3 355.8 907.5 122.3 58.9 172.4 1942.6 1790 1794 -15.88 36.48 207526 4.3 768.9 615.1 265.9 658.6 100.4 42.6 141.8 1995.1 1785 1789 -14.42 43.42 1759667 5.3 878.2 683.1 319.4 753.8 155.3 53.3 187.8 2312.3 1780 1784 -14.67 33.95 160047 4 844.3 675.3 319.8 709.8 137.2 46.3 124.3 2114.2 1775 1779 -13.85 38.02 223906 3.6 415.8 441 211.1 382.5 96.7 28.2 106.2 1995 1770 1774 -17.28 42.58 176392 5.3 531.6 630.2 348.7 537.1 131.3 42 145.5 2269.1 1765 1769 -15.59 40.21 203921 4.5 476.6 348.8 221.9 388.8 127.2 30.4 91.5 1897.9 1760 1764 -14.78 48.3 245307 3.6 448.6 384.1 250.7 410.6 105.5 30 100.1 1840.9 1755 1759 -15.27 41.16 161777 3.1 351.8 674.2 277.7 411.5 98.4 36.9 141.6 2145.7 1750 1754 -16.28 50.09 208420 3.1 287.8 393.9 207.6 270.4 103.6 23.9 91.1 1558.3 1745 1749 -14.9 43.79 259022 4.7 344 474.5 187.5 320.1 112.8 28.3 114.5 1835.9 1740 1744 -16.55 43.95 191874 3.6 470.4 332.2 171.3 367.3 97.4 26.4 80.2 2086.5 1735 1739 -15.85 47.84 178334 3.9 507.1 406.9 242.1 447.5 100 29.9 83.9 2020.6 1730 1734 -15.21 37.48 175810 3.9 717.3 1112.6 424.4 752.7 131.2 57.2 210.9 2093.3 1725 1729 -16.23 49.84 200450 5 1130.6 905.1 370.1 923.3 108.6 56.6 184.7 2377.2 1720 1724 -13.59 27.88 359518 4.3 782.5 1033.8 380.7 786.6 116.2 58.8 243.3 2199.9 1715 1719 -13.55 39.03 303723 4.1 402 386.2 142.1 356.8 85.3 28.6 115.4 1511.9 1710 1714 -14.85 31.77 171051 4.7 603.1 506.7 219.8 517.8 103.1 35.7 130 2180.1 1705 1709 -14.23 36.65 241320 6.1 795.8 798.2 306.8 775.4 143.1 54.2 208 2207.8 1700 1704 -14.47 54.07 358206 5.5 644.1 717.2 258.3 640.7 129.7 46 180.9 2111.8 1695 1699 -15.39 55.93 233232 5.4 775.2 893.7 293 734.5 119.3 50.7 188.8 2277.9 1690 1694 -15.46 40.73 244691 6 736.7 1053.7 326.4 772.6 128.3 74.6 221.6 2918.8 1685 1689 -14.07 54.41 312152 4.6 387 839.5 286.9 479.3 123.6 52.3 189.7 2013.9 1680 1684 -15.17 36.57 288777 5 647.9 904.2 313.9 682.8 123 50.5 188 2383.1 1675 1679 -15.8 41.1 251291 5 703.8 822.3 316.2 687.2 129.1 51.6 184 2320.3 1670 1674 -14.44 39.9 272630 4.3 500.9 542.3 206 457.4 117.6 32.9 117.7 1694.9 1665 1669 -15.08 62.74 279521 5 981 746.1 300 802.3 142.4 48.7 154.2 2526.2 1660 1664 -15.78 49.73 357602 4.2 923.1 658.4 285.7 728.3 138.6 45.1 135.3 1942.2 1655 1659 -15.47 55.22 273500 4.4 527.9 622.8 276.1 516.5 140.2 38 135.2 2116.9 1650 1654 -14.66 33.85 191862 3.4 401.2 445.4 214.4 391.5 100.2 31.6 118.9 2069.1 1645 1649 -14.49 41.15 388442 5.7 537.5 808.3 322.4 565 119.8 47.9 183 2256.5 1640 1644 -16.98 52.03 220625 4.1 302.7 584.2 247.9 370.8 103.7 33 144.1 1999 1635 1639 -15.59 35.78 324398 4.2 355.9 734.2 224.2 454.4 107.8 38.9 154.6 2090.2 1630 1634 -14.88 44.63 310187 4.6 462.2 1006.1 343.5 641.2 119.7 48.2 190.9 1926.3 1625 1629 -18 41.23 280226 4.9 526.1 782.7 275.1 606.3 113.5 45.1 173.4 2022.5 1620 1624 -14.44 50.82 455250 6.3 879.4 999.8 197.6 837.5 114.9 71.1 178 1571.6 1615 1619 -14.89 58.54 302907 5.2 706.2 852 347.9 716 155.9 53.6 207 2283.3 1610 1614 -15.49 58.94 260799 3.8 331.1 540 234.2 387.7 110 31.6 136 1733.2 1605 1609 -15.33 42.51 322636 4.2 439 496 219.7 446.6 117.3 33 141.7 1904.5 1600 1604 -15.28 55.14 210732 4.2 518.2 660.1 268.2 551.1 124.2 41 156.7 2038.8