Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China
Stable-oxygen-isotope ratios (δ18O) collected from the headwaters of the Ürümqi river, Tien Shan, China, were used to test the relationship between δ18O temporal relationship is found between δ18O monthly averages which remove synoptic-scale influences such as changes in condensation level, condensa...
Main Authors: | , , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
DigitalCommons@UMaine
1999
|
Subjects: | |
Online Access: | https://digitalcommons.library.umaine.edu/ers_facpub/265 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1270&context=ers_facpub |
id |
ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1270 |
---|---|
record_format |
openpolar |
spelling |
ftmaineuniv:oai:digitalcommons.library.umaine.edu:ers_facpub-1270 2023-05-15T16:38:47+02:00 Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China Shugui, Hou Dahe, Qin Mayewski, Paul Andrew Qinzhao, Yang Jiawen, Ren Zhongqin, Li Cunde, Xiao 1999-01-01T08:00:00Z application/pdf https://digitalcommons.library.umaine.edu/ers_facpub/265 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1270&context=ers_facpub unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/ers_facpub/265 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1270&context=ers_facpub This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). Earth Science Faculty Scholarship Glaciogeology Geochemistry Glaciochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology text 1999 ftmaineuniv 2023-03-12T18:54:40Z Stable-oxygen-isotope ratios (δ18O) collected from the headwaters of the Ürümqi river, Tien Shan, China, were used to test the relationship between δ18O temporal relationship is found between δ18O monthly averages which remove synoptic-scale influences such as changes in condensation level, condensation temperature and moisture sources (Yao and others, 1996). Linear fits as high as 0.95‰°C-1 for precipitation events and 1.23‰°C-1 for monthly averages are found. Although the δ18O (∼2 km from the precipitation sampling site) decreased dramatically compared to the precipitation samples , the ice-core records of annually averaged δ18O with contemporaneous air temperature, especially summer air temperature, at the nearby Daxigou meteorological station. Nevertheless, the relationship between the ice core δ18O records and contemporaneous air temperature is less significant than that [or the precipitation samples due to depositional and post-depositional modification processes, which are highlighted by the successive snow-pit δ18O No. 1. Our results might extend the application of high-altitude and subtropical ice-core δ18O Text ice core The University of Maine: DigitalCommons@UMaine |
institution |
Open Polar |
collection |
The University of Maine: DigitalCommons@UMaine |
op_collection_id |
ftmaineuniv |
language |
unknown |
topic |
Glaciogeology Geochemistry Glaciochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology |
spellingShingle |
Glaciogeology Geochemistry Glaciochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology Shugui, Hou Dahe, Qin Mayewski, Paul Andrew Qinzhao, Yang Jiawen, Ren Zhongqin, Li Cunde, Xiao Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China |
topic_facet |
Glaciogeology Geochemistry Glaciochemistry Glaciology Cryology Climate Change Atmospheric Sciences Climate Earth Sciences Hydrology |
description |
Stable-oxygen-isotope ratios (δ18O) collected from the headwaters of the Ürümqi river, Tien Shan, China, were used to test the relationship between δ18O temporal relationship is found between δ18O monthly averages which remove synoptic-scale influences such as changes in condensation level, condensation temperature and moisture sources (Yao and others, 1996). Linear fits as high as 0.95‰°C-1 for precipitation events and 1.23‰°C-1 for monthly averages are found. Although the δ18O (∼2 km from the precipitation sampling site) decreased dramatically compared to the precipitation samples , the ice-core records of annually averaged δ18O with contemporaneous air temperature, especially summer air temperature, at the nearby Daxigou meteorological station. Nevertheless, the relationship between the ice core δ18O records and contemporaneous air temperature is less significant than that [or the precipitation samples due to depositional and post-depositional modification processes, which are highlighted by the successive snow-pit δ18O No. 1. Our results might extend the application of high-altitude and subtropical ice-core δ18O |
format |
Text |
author |
Shugui, Hou Dahe, Qin Mayewski, Paul Andrew Qinzhao, Yang Jiawen, Ren Zhongqin, Li Cunde, Xiao |
author_facet |
Shugui, Hou Dahe, Qin Mayewski, Paul Andrew Qinzhao, Yang Jiawen, Ren Zhongqin, Li Cunde, Xiao |
author_sort |
Shugui, Hou |
title |
Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China |
title_short |
Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China |
title_full |
Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China |
title_fullStr |
Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China |
title_full_unstemmed |
Climatological Significance of δ 18 O in Precipitation and Ice Cores: a Case Study at the Head of the Ürütnqi River, Tien Shan, China |
title_sort |
climatological significance of δ 18 o in precipitation and ice cores: a case study at the head of the ürütnqi river, tien shan, china |
publisher |
DigitalCommons@UMaine |
publishDate |
1999 |
url |
https://digitalcommons.library.umaine.edu/ers_facpub/265 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1270&context=ers_facpub |
genre |
ice core |
genre_facet |
ice core |
op_source |
Earth Science Faculty Scholarship |
op_relation |
https://digitalcommons.library.umaine.edu/ers_facpub/265 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1270&context=ers_facpub |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
_version_ |
1766029123763830784 |