Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation
The temporal and spatial slopes of water isotope-temperature relations are studied for the last 21,000years over the middle and high latitudes using a series of snapshot simulations of global climate and water isotopes in the isotope-enabled atmospheric model isoCAM3. Our model simulation suggests t...
Published in: | Journal of Geophysical Research: Atmospheres |
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JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
2016
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Online Access: | https://hdl.handle.net/20.500.11897/457527 https://doi.org/10.1002/2016JD024955 |
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ftpekinguniv:oai:localhost:20.500.11897/457527 2023-05-15T16:29:42+02:00 Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation Guan, Jian Liu, Zhengyu Wen, Xinyu Brady, Esther Noone, David Zhu, Jiang Han, Jing Guan, J (reprint author), Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate Ocean & Atmosphere Studies, Beijing, Peoples R China.; Liu, ZY (reprint author), Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA. Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate Ocean & Atmosphere Studies, Beijing, Peoples R China. Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA. Univ Wisconsin, Ctr Climate Res, Nelson Inst Environm Studies, Madison, WI USA. NCAR, Climate & Global Dynam, Earth Syst Lab, Boulder, CO USA. Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA. Liu, ZY (reprint author), Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA. 2016 https://hdl.handle.net/20.500.11897/457527 https://doi.org/10.1002/2016JD024955 en eng JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES.2016,121(17),10342-10354. 1513828 2169-897X http://hdl.handle.net/20.500.11897/457527 2169-8996 doi:10.1002/2016JD024955 WOS:000384823000006 SCI stable water isotope-temperature relationship temporal slope spatial slope slope equation LAST GLACIAL MAXIMUM ICE CORE CENTRAL GREENLAND OXYGEN PRECIPITATION PALEOTHERMOMETER RECONSTRUCTION CONSTRAINTS CALIBRATION DELTA-O-18 Journal 2016 ftpekinguniv https://doi.org/20.500.11897/457527 https://doi.org/10.1002/2016JD024955 2021-08-01T11:02:24Z The temporal and spatial slopes of water isotope-temperature relations are studied for the last 21,000years over the middle and high latitudes using a series of snapshot simulations of global climate and water isotopes in the isotope-enabled atmospheric model isoCAM3. Our model simulation suggests that both the temporal slope and spatial slope remain largely stable throughout the last deglaciation. Furthermore, the temporal slope can vary substantially across regions. Nevertheless, on average, and most likely, the temporal slope is about 0.3 degrees C-1 and is about half of the spatial slope. Finally, the relation between temporal and spatial slopes is understood using a semiempirical equation that is derived based on both the Rayleigh distillation and a fixed spatial slope. The slope equation quantifies the Boyle's mechanism and suggests that the temporal slope is usually smaller than the spatial slope in the extratropics mainly because of the polar amplification feature in global climate change, such that the response in local temperature at middle and high latitudes is usually greater than that in the total equivalent source temperature. National Science Foundation of China [41130105, 41130962, 41005035]; China Scholarship Council; NSF C2P2; DOE SciDac SCI(E) ARTICLE lotusescy@pku.edu.cn; zliu3@wisc.edu 17 10342-10354 121 Journal/Newspaper Greenland ice core Peking University Institutional Repository (PKU IR) Greenland Journal of Geophysical Research: Atmospheres 121 17 |
institution |
Open Polar |
collection |
Peking University Institutional Repository (PKU IR) |
op_collection_id |
ftpekinguniv |
language |
English |
topic |
stable water isotope-temperature relationship temporal slope spatial slope slope equation LAST GLACIAL MAXIMUM ICE CORE CENTRAL GREENLAND OXYGEN PRECIPITATION PALEOTHERMOMETER RECONSTRUCTION CONSTRAINTS CALIBRATION DELTA-O-18 |
spellingShingle |
stable water isotope-temperature relationship temporal slope spatial slope slope equation LAST GLACIAL MAXIMUM ICE CORE CENTRAL GREENLAND OXYGEN PRECIPITATION PALEOTHERMOMETER RECONSTRUCTION CONSTRAINTS CALIBRATION DELTA-O-18 Guan, Jian Liu, Zhengyu Wen, Xinyu Brady, Esther Noone, David Zhu, Jiang Han, Jing Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation |
topic_facet |
stable water isotope-temperature relationship temporal slope spatial slope slope equation LAST GLACIAL MAXIMUM ICE CORE CENTRAL GREENLAND OXYGEN PRECIPITATION PALEOTHERMOMETER RECONSTRUCTION CONSTRAINTS CALIBRATION DELTA-O-18 |
description |
The temporal and spatial slopes of water isotope-temperature relations are studied for the last 21,000years over the middle and high latitudes using a series of snapshot simulations of global climate and water isotopes in the isotope-enabled atmospheric model isoCAM3. Our model simulation suggests that both the temporal slope and spatial slope remain largely stable throughout the last deglaciation. Furthermore, the temporal slope can vary substantially across regions. Nevertheless, on average, and most likely, the temporal slope is about 0.3 degrees C-1 and is about half of the spatial slope. Finally, the relation between temporal and spatial slopes is understood using a semiempirical equation that is derived based on both the Rayleigh distillation and a fixed spatial slope. The slope equation quantifies the Boyle's mechanism and suggests that the temporal slope is usually smaller than the spatial slope in the extratropics mainly because of the polar amplification feature in global climate change, such that the response in local temperature at middle and high latitudes is usually greater than that in the total equivalent source temperature. National Science Foundation of China [41130105, 41130962, 41005035]; China Scholarship Council; NSF C2P2; DOE SciDac SCI(E) ARTICLE lotusescy@pku.edu.cn; zliu3@wisc.edu 17 10342-10354 121 |
author2 |
Guan, J (reprint author), Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate Ocean & Atmosphere Studies, Beijing, Peoples R China.; Liu, ZY (reprint author), Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA. Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate Ocean & Atmosphere Studies, Beijing, Peoples R China. Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA. Univ Wisconsin, Ctr Climate Res, Nelson Inst Environm Studies, Madison, WI USA. NCAR, Climate & Global Dynam, Earth Syst Lab, Boulder, CO USA. Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA. Liu, ZY (reprint author), Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA. |
format |
Journal/Newspaper |
author |
Guan, Jian Liu, Zhengyu Wen, Xinyu Brady, Esther Noone, David Zhu, Jiang Han, Jing |
author_facet |
Guan, Jian Liu, Zhengyu Wen, Xinyu Brady, Esther Noone, David Zhu, Jiang Han, Jing |
author_sort |
Guan, Jian |
title |
Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation |
title_short |
Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation |
title_full |
Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation |
title_fullStr |
Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation |
title_full_unstemmed |
Understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isoCAM3: The slope equation |
title_sort |
understanding the temporal slope of the temperature-water isotope relation during the deglaciation using isocam3: the slope equation |
publisher |
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
publishDate |
2016 |
url |
https://hdl.handle.net/20.500.11897/457527 https://doi.org/10.1002/2016JD024955 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core |
genre_facet |
Greenland ice core |
op_source |
SCI |
op_relation |
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES.2016,121(17),10342-10354. 1513828 2169-897X http://hdl.handle.net/20.500.11897/457527 2169-8996 doi:10.1002/2016JD024955 WOS:000384823000006 |
op_doi |
https://doi.org/20.500.11897/457527 https://doi.org/10.1002/2016JD024955 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
121 |
container_issue |
17 |
_version_ |
1766019406600601600 |