Journal cover Journal topic
Climate of the Past An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/cpd-6-385-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
07 Apr 2010
Review status
A revision of this discussion paper for further review has not been submitted.
Last-glacial to postglacial climate formation in the continental interior inferred from multi-proxy records of Lake Hovsgol, Mongolia
K. Minoura1, D. Sugawara1, and T. Kawai2 1Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Aramaki 6–3, Aoba-ku, Sendai 980–8578, Japan
2Association of International Research Initiatives for Environmental Studies, Ueno 1-4-4, Taitou-ku, Tokyo 110-0005, Japan
Abstract. Knowledge of the evolution of arboreal forests is necessary to interpret the cause of climate formation in intracontinental regions. Paleoproxy records of sediment cores from Lake Hovsgol, Mongolia show that watershed conditions have fluctuated widely during the last 30 ka because of changing orbital parameters. Termination of glacial cooling and the subsequent prevalence of deglacial warming were consequences of solar forcing. Arboreal forests exerted an important influence on the atmospheric moisture cycle at high latitudes. Air pressure decreased because of raised humidity from water vapor penetration into inland regions that occurred along with summer monsoons. Data showing utilization of solar energy are necessary for establishing climate conditions. Atmospheric warming under increased insolation caused a shift of the monsoon limit to the north, amplifying the summer moisture supply to the watershed. That amplification engendered the appearance of the maximum vegetation in the Hovsgol drainage basin at the beginning of the Holocene. The retreat of arboreal forests that occurred along with decreased solar energy shrank the humidification-vegetation feedback loop, thereby decreasing the atmospheric humidity. The consequently lowered vapor pressure contributed to the incursion of cool air masses from the north.

Citation: Minoura, K., Sugawara, D., and Kawai, T.: Last-glacial to postglacial climate formation in the continental interior inferred from multi-proxy records of Lake Hovsgol, Mongolia, Clim. Past Discuss., 6, 385-420, https://doi.org/10.5194/cpd-6-385-2010, 2010.
K. Minoura et al.
Interactive discussionStatus: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
 
RC C264: 'CP-2010-13', Anonymous Referee #1, 31 May 2010 Printer-friendly Version 
RC C270: 'Anonymous review', Anonymous Referee #2, 04 Jun 2010 Printer-friendly Version 
K. Minoura et al.
K. Minoura et al.

Viewed

Total article views: 674 (including HTML, PDF, and XML)

HTML PDF XML Total BibTeX EndNote
290 310 74 674 24 64

Views and downloads (calculated since 01 Feb 2013)

Cumulative views and downloads (calculated since 01 Feb 2013)

Saved

Discussed

Latest update: 22 Jul 2017
Publications Copernicus
Download
Share