# Paru Co, Tibetan Plateau, China Holocene Multiproxy Sediment Data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # # Online_Resource: http://ncdc.noaa.gov/paleo/study/16399 # # Original_Source_URL: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleolimnology/asia/tibet/paruco2014opal.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Paleolimnology #-------------------- # Contribution_Date # Date: 2014-07-24 #-------------------- # Title # Study_Name: Paru Co, Tibetan Plateau, China Holocene Multiproxy Sediment Data #-------------------- # Investigators # Investigators: Bird, B.W.; Polissar, P.J.; Lei, Y.; Thompson, L.G.; Yao, T.; Finney, B.P.; Bain, D.J.; Pompeani, D.P.; Steinman, B.A. #-------------------- # Description_and_Notes # Description: Holocene sedimentological and leaf wax n-alkane hydrogen isotope data from Paru Co, southeastern Tibetan Plateau. #-------------------- # Publication # Authors: Broxton W. Bird, Pratigya J. Polissar, Yanbin Lei, Lonnie G. Thompson, Tandong Yao, Bruce P. Finney, Daniel J. Bain, David P. Pompeani, Byron A. Steinman # Published_Date_or_Year: 2014-08-01 # Published_Title: A Tibetan lake sediment record of Holocene Indian summer monsoon variability # Journal_Name: Earth and Planetary Science Letters # Volume: 399 # Edition: # Issue: # Pages: 92-102 # DOI: 10.1016/j.epsl.2014.05.017 # Online_Resource: http://www.sciencedirect.com/science/article/pii/S0012821X14003112 # Full_Citation: # Abstract: Sedimentological data and hydrogen isotopic measurements of leaf wax long-chain n-alkanes (dDwax) from an alpine lake sediment archive on the southeastern Tibetan Plateau (Paru Co) provide a Holocene perspective of Indian summer monsoon (ISM) activity. The sedimentological data reflect variations in lake level and erosion related to local ISM rainfall over the Paru Co catchment, whereas dDwax reflects integrated, synoptic-scale ISM dynamics. Our results indicate that maximum ISM rainfall occurred between 10.1 and ~5.2 ka, during which time there were five century-scale high and low lake stands. After 5.2 ka, the ISM trended toward drier conditions to the present, with the exception of a pluvial event centered at 0.9 ka. The Paru Co results share similarities with paleoclimate records from across the Tibetan Plateau, suggesting millennial-scale ISM dynamics were expressed coherently. These millennial variations largely track gradual decreases in orbital insolation, the southward migration of the Intertropical Convergence Zone (ITCZ), decreasing zonal Pacific sea surface temperature (SST) gradients and cooling surface air temperatures on the Tibetan Plateau. Centennial ISM and lake-level variability at Paru Co closely track reconstructed surface air temperatures on the Tibetan Plateau, but may also reflect Indian Ocean Dipole events, particularly during the early Holocene when ENSO variability was attenuated. Variations in the latitude of the ITCZ during the early and late Holocene also appear to have exerted an influence on centennial ISM rainfall. #------------------ # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: EAR #------------------ # Funding_Agency # Funding_Agency_Name: Chinese National Science Foundation # Grant: #------------------ # Site_Information # Site_Name: Paru Co # Location: Asia>Eastern Asia>China # Country: China # Northernmost_Latitude: 29.796 # Southernmost_Latitude: 29.796 # Easternmost_Longitude: 92.352 # Westernmost_Longitude: 92.352 # Elevation: 4845 m #------------------ # Data_Collection # Collection_Name: ParuCo2013opal # Earliest_Year: 10931 # Most_Recent_Year: -7 # Time_Unit: Cal. Year BP # Core_Length: m # Notes: #------------------ # Chronology: # # # # # # # # #---------------- # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ##depth_cm depth, , , cm, , , , ,N ##age_calBP age, , , calendar years before present, , , , ,N ##opal-w% opal, , , weight percent, , , biogenic, ,N # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: # Analytical biogenic opal from Paru Co depth_cm age_calBP opal-w% 2.50 -7 9.33 10.00 173 12.54 21.50 459 14.33 30.50 690 13.3 40.50 955 14.31 49.50 1200 14.25 60.69 1511 18.48 72.40 1846 22.36 81.57 2114 22.07 90.74 2386 20.7 102.96 2755 33.37 112.12 3037 34.76 121.80 3337 40.66 134.02 3721 43.42 142.52 3991 42.84 154.72 4381 37.96 163.86 4675 39.7 169.96 4872 36.45 185.21 5365 17.62 194.36 5662 28.89 204.00 5974 28.52 213.00 6265 37.14 222.00 6556 33.56 231.00 6845 39.23 240.00 7132 32.67 240.00 7132 33.86 249.00 7418 19.32 261.00 7795 20.27 270.00 8075 22.46 279.00 8351 26.62 288.00 8624 23.28 294.25 8812 31.41 312.51 9348 26.44 321.63 9608 15.78 330.76 9863 15.43 340.39 10127 18.72 349.52 10370 16.43 358.64 10607 20.71 367.77 10732 7.52 376.90 10761 3.39 381.11 10774 6.19 399.52 10831 8.59 408.73 10859 18.3 418.96 10891 15.33 424.59 10908 15.38 431.95 10931 2.98