Kasper, Thomas; Haberzettl, Torsten; Wang, Junbo; Daut, Gerhard; Doberschütz, Stefan; Zhu, Liping; Mäusbacher, Roland (2015): XRF measurements, CNS content, grain size and sediment accumulation of sediment core NC_08/01 from lake Nam Co, Tibet [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.841369, Supplement to: Kasper, T et al. (2015): Hydrological variations on the Central Tibetan Plateau since the Last Glacial Maximum and their teleconnection to inter-regional and hemispheric climate variations. Journal of Quaternary Science, 30(1), 70-78, https://doi.org/10.1002/jqs.2759
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Abstract:
Decadal to sub-decadal variability of inflow, evaporation and biological productivity derived from Lake Nam Co was used to reconstruct hydrological changes for the past ca. 24 k cal a BP. The timing of these variations corresponds to known climatic shifts on the Northern Hemisphere. After a dry and cold Last Glacial Maximum the lake level of Nam Co initially rose at ca. 20 k cal a BP. Moist but further cold conditions between ca. 16.2 and 14 k cal a BP correspond to Heinrich Event 1. A warm and moist phase between ca. 14 and 13 k cal a BP is expressed as a massive enhancement in inflow and biological productivity and might be associated with a first intensification of the Indian Ocean Summer Monsoon coinciding with the Bølling-Allerød complex. A twostep decrease in inflow and a contemporaneous decline in biological productivity until ca. 11.8 k cal a BP points to cool and dry conditions during the Younger Dryas. Lake levels peak at ca. 9.4 k cal a BP, although hydrological conditions remain relatively stable during the Holocene with only low-amplitude variations observed.
Coverage:
Latitude: 30.737420 * Longitude: 90.790330
Date/Time Start: 2008-09-15T00:00:00 * Date/Time End: 2008-09-15T00:00:00
Event(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets
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Datasets listed in this publication series
- Kasper, T; Haberzettl, T; Wang, J et al. (2015): (Appendix 2) Carbon, nitrogen and sulphur content of sediments from lake Nam Co core NC_08/01. https://doi.org/10.1594/PANGAEA.841364
- Kasper, T; Haberzettl, T; Wang, J et al. (2015): (Appendix 3) Grain size composition of sediments from lake Nam Co core NC_08/01. https://doi.org/10.1594/PANGAEA.841365
- Kasper, T; Haberzettl, T; Wang, J et al. (2015): (Appendix 4) Sediment accumulation rates of lake Nam Co core NC_08/01. https://doi.org/10.1594/PANGAEA.841366
- Kasper, T; Haberzettl, T; Wang, J et al. (2015): (Appendix 1) X-ray fluorescence (XRF) measurements of lake Nam Co sediment core NC_08/01. https://doi.org/10.1594/PANGAEA.841363