Journal cover Journal topic
Climate of the Past An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 3.470 IF 3.470
  • IF 5-year value: 4.009 IF 5-year
    4.009
  • CiteScore value: 3.45 CiteScore
    3.45
  • SNIP value: 1.166 SNIP 1.166
  • IPP value: 3.28 IPP 3.28
  • SJR value: 1.929 SJR 1.929
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 64 Scimago H
    index 64
  • h5-index value: 43 h5-index 43
Discussion papers
https://doi.org/10.5194/cp-2019-82
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-2019-82
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 27 Aug 2019

Submitted as: research article | 27 Aug 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Climate of the Past (CP).

Microbial Membrane Tetraether lipid-inferred paleohydrology and paleotemperature of Lake Chenghai during the Pleistocene-Holocene transition

Weiwei Sun1, Enlou Zhang1,2, Jie Chang1, James Shulmeister3,4, Michael I. Bird5,6, Cheng Zhao1,2, Qingfeng Jiang7, and Ji Shen1 Weiwei Sun et al.
  • 1State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
  • 2Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Science, Xian 710061, China
  • 3School of Earth and Environmental Sciences, The University of Queensland, St Lucia, Brisbane, Qld, 4072, Australia
  • 4School of Earth and Environment, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
  • 5ARC Centre of Excellence for Australian Biodiversity and Heritage, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia
  • 6College of Science and Engineering, James Cook University, PO Box 6811, Cairns, Queensland, 4870, Australia
  • 7School of Geography Sciences, Nantong University, Nantong, 226007, China

Abstract. Over the past few decades, paleoenvironmental studies in the Indian Summer Monsoon (ISM) region have mainly focused on precipitation change, with few published terrestrial temperature records from the region. We analyzed the distribution of isoprenoid glycerol dialkyl glycerol tetraethers (isoGDGTs) in the sediments of Lake Chenghai in southwest China across the Pleistocene–Holocene transition, to extract both regional hydrological and temperature signals for this important transition period. Lake-level was reconstructed from the relative abundance of crenarchaeol in isoGDGTs (%cren) and the crenarchaeol'/crenarchaeol ratio. The %cren-inferred lake-level identified a single lowstand (15.4–14.4 cal ka BP), while the crenarchaeol'/crenarchaeol ratio suggests relatively lower lake-level between 15.4–14.4 cal ka BP and 12.5–11.7 cal ka BP, corresponding to periods of weakened ISM during the Heinrich 1 (H1) and Younger Dryas (YD) cold event. A filtered TetraEther indeX consisting of 86 carbon atoms (TEX86 index) revealed that lake surface temperature reached present-day values during the YD cold event, and suggests a substantial warming of ~ 4 °C from the early Holocene to the mid-Holocene. Our paleotemperature record is generally consistent with other records in southwest China, suggesting that the distribution of isoGDGTs in Lake Chenghai sediments has potential for quantitative paleotemperature reconstruction.

Weiwei Sun et al.
Interactive discussion
Status: open (until 23 Oct 2019)
Status: open (until 23 Oct 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Weiwei Sun et al.
Weiwei Sun et al.
Viewed  
Total article views: 157 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
128 28 1 157 6 1 2
  • HTML: 128
  • PDF: 28
  • XML: 1
  • Total: 157
  • Supplement: 6
  • BibTeX: 1
  • EndNote: 2
Views and downloads (calculated since 27 Aug 2019)
Cumulative views and downloads (calculated since 27 Aug 2019)
Viewed (geographical distribution)  
Total article views: 90 (including HTML, PDF, and XML) Thereof 89 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 17 Sep 2019
Publications Copernicus
Download
Citation