Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau
ABSTRACT Improvements in understanding glacial extents and chronologies for the southeastern slope of the western Nyaiqentanglha Shan on the Tibetan Plateau are required to understand regional climate changes during the Last Glacial cycle. A two-dimensional numerical model of mass balance, based on...
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Online Access: | http://dx.doi.org/10.1017/jog.2016.147 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143016001477 |
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crcambridgeupr:10.1017/jog.2016.147 2024-05-12T08:06:16+00:00 Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau XU, XIANGKE PAN, BAOLIN DONG, GUOCHENG YI, CHAOLU GLASSER, NEIL F. 2017 http://dx.doi.org/10.1017/jog.2016.147 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143016001477 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 63, issue 238, page 361-371 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2017 crcambridgeupr https://doi.org/10.1017/jog.2016.147 2024-04-18T06:54:25Z ABSTRACT Improvements in understanding glacial extents and chronologies for the southeastern slope of the western Nyaiqentanglha Shan on the Tibetan Plateau are required to understand regional climate changes during the Last Glacial cycle. A two-dimensional numerical model of mass balance, based on snow–ice melting factors, and of ice flow for mountain glaciers is used to assess the glacier sensitivity to climatic change in a catchment of the region. The model can reproduce valley glaciers, wide-tongued glaciers and a coalescing glacier within step temperature lowering and precipitation increasing experiments. The model sensitivity experiments also indicate that the dependence of glacier growth on temperature and/or precipitation is nonlinear. The model results suggest that the valley glaciers respond more sensitively to an imposed climate change than wide-tongued and coalescing glaciers. Guided by field geological evidence of former glacier extent and other independent paleoclimate reconstructions, the model is also used to constrain the most realistic multi-year mean temperatures to be 2.9–4.6°C and 1.8–2.5°C lower than present in the glacial stages of the Last Glacial Maximum and middle marine oxygen isotope stage 3, respectively. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 63 238 361 371 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes XU, XIANGKE PAN, BAOLIN DONG, GUOCHENG YI, CHAOLU GLASSER, NEIL F. Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau |
topic_facet |
Earth-Surface Processes |
description |
ABSTRACT Improvements in understanding glacial extents and chronologies for the southeastern slope of the western Nyaiqentanglha Shan on the Tibetan Plateau are required to understand regional climate changes during the Last Glacial cycle. A two-dimensional numerical model of mass balance, based on snow–ice melting factors, and of ice flow for mountain glaciers is used to assess the glacier sensitivity to climatic change in a catchment of the region. The model can reproduce valley glaciers, wide-tongued glaciers and a coalescing glacier within step temperature lowering and precipitation increasing experiments. The model sensitivity experiments also indicate that the dependence of glacier growth on temperature and/or precipitation is nonlinear. The model results suggest that the valley glaciers respond more sensitively to an imposed climate change than wide-tongued and coalescing glaciers. Guided by field geological evidence of former glacier extent and other independent paleoclimate reconstructions, the model is also used to constrain the most realistic multi-year mean temperatures to be 2.9–4.6°C and 1.8–2.5°C lower than present in the glacial stages of the Last Glacial Maximum and middle marine oxygen isotope stage 3, respectively. |
format |
Article in Journal/Newspaper |
author |
XU, XIANGKE PAN, BAOLIN DONG, GUOCHENG YI, CHAOLU GLASSER, NEIL F. |
author_facet |
XU, XIANGKE PAN, BAOLIN DONG, GUOCHENG YI, CHAOLU GLASSER, NEIL F. |
author_sort |
XU, XIANGKE |
title |
Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau |
title_short |
Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau |
title_full |
Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau |
title_fullStr |
Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau |
title_full_unstemmed |
Last Glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western Nyaiqentanglha Shan, Tibetan Plateau |
title_sort |
last glacial climate reconstruction by exploring glacier sensitivity to climate on the southeastern slope of the western nyaiqentanglha shan, tibetan plateau |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/jog.2016.147 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143016001477 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 63, issue 238, page 361-371 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2016.147 |
container_title |
Journal of Glaciology |
container_volume |
63 |
container_issue |
238 |
container_start_page |
361 |
op_container_end_page |
371 |
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1798848729715834880 |