IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2010  > Vol7 No.1
Atmospheric Methane over the Past 2000 Years from a Sub-tropical Ice Core, Central Himalayas
Li Jiule; Xu Baiqing; Yao Tandong; Wang Ninglian; MacClune, Ken
Corresponding AuthorLi, JL
2010-03
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume7Issue:1Pages:1–14
AbstractA high-resolution 2000-year methane record has been constructed from an ice core recovered at 7200 m a.s.l. on the Dasuopu Glacier in the central Himalayas. This sub-tropical methane record reveals an increasing trend in the concentration of methane during the industrial era that is similar to observations from polar regions. However, we also observed the differences in the atmospheric methane mixing ratio between this monsoon record and those from polar regions during pre-industrial times. In the time interval 0 similar to 1850 A.D., the average methane concentration in the Dasuopu ice core was 782 +/- 40 ppbv and the maximum temporal variation exceeded 200 ppbv. The difference gradient of methane concentration in Dasuopu ice core with Greenland and Antarctica cores are 66 +/- 40 ppbv and 107 +/- 40 ppbv, respectively. This suggests that the tropical latitudes might have acted as a major global methane source in pre-industrial times. In addition, the temporal fluctuation of the pre-industrial methane records suggests that monsoon evolution incorporated with high methane emission from south Asia might be responsible for the relatively high methane concentration observed in the Dasuopu ice core around A.D. 800 and A.D. 1600. These results provide a rough understanding of the contribution of tropical methane source to the global methane budget and also the relationship between atmospheric methane and climate change.
KeywordClimate Change Ice Core Air Bubble Atmospheric Methane Dasuopu Glacier Central Himalayas
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5881
CollectionJournal of Mountain Science_Journal of Mountain Science-2010_Vol7 No.1
Recommended Citation
GB/T 7714
Li Jiule,Xu Baiqing,Yao Tandong,et al. Atmospheric Methane over the Past 2000 Years from a Sub-tropical Ice Core, Central Himalayas[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(1):1–14.
APA Li Jiule,Xu Baiqing,Yao Tandong,Wang Ninglian,&MacClune, Ken.(2010).Atmospheric Methane over the Past 2000 Years from a Sub-tropical Ice Core, Central Himalayas.JOURNAL OF MOUNTAIN SCIENCE,7(1),1–14.
MLA Li Jiule,et al."Atmospheric Methane over the Past 2000 Years from a Sub-tropical Ice Core, Central Himalayas".JOURNAL OF MOUNTAIN SCIENCE 7.1(2010):1–14.
Files in This Item:
File Name/Size DocType Version Access License
Atmospheric Methane (1554KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li Jiule]'s Articles
[Xu Baiqing]'s Articles
[Yao Tandong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li Jiule]'s Articles
[Xu Baiqing]'s Articles
[Yao Tandong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li Jiule]'s Articles
[Xu Baiqing]'s Articles
[Yao Tandong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Atmospheric Methane over the Past 2000 Years from a.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.