DOI: 10.1002/2014GL062768
论文题名: Long-term change of CO2 latitudinal distribution in the upper troposphere
作者: Matsueda H. ; Machida T. ; Sawa Y. ; Niwa Y.
刊名: Geophysical Research Letters
ISSN: 0094-8779
EISSN: 1944-8510
出版年: 2015
卷: 42, 期: 7 起始页码: 2508
结束页码: 2514
语种: 英语
英文关键词: carbon cycle
; carbon dioxide
; latitudinal distribution
; upper troposphere
Scopus关键词: Atmospheric pressure
; Carbon
; Fossil fuels
; Geographical distribution
; Tropical engineering
; Troposphere
; Aircraft measurement
; Carbon cycles
; Fossil fuel emissions
; Interannual variation
; Latitudinal distribution
; Latitudinal gradients
; Southern oscillation
; Upper troposphere
; Carbon dioxide
; air-sea interaction
; biosphere
; carbon dioxide
; carbon flux
; El Nino-Southern Oscillation
; latitude
; troposphere
英文摘要: We analyzed temporal variations in the annual mean latitudinal distribution of upper tropospheric CO2 using the aircraft measurements taken between Japan and Australia over the period 1993-2013, plus earlier data from 1984 and 1985. The observed CO2 latitudinal gradient between 30 N and 30 S showed large interannual variations that are clearly associated with El Niño-Southern Oscillation events. We also found long-term increasing trends of the CO2 gradients in the most northern latitudes that are proportionally associated with increasing fossil fuel emissions, while decreasing trends were found around the tropical regions. Extrapolation of the changes in the CO2 gradient back to zero fossil fuel emissions showed a negative north-south gradient with lower CO2 in the Northern Hemisphere than in the Southern Hemisphere, as well as a regional CO2 elevation in the tropical regions. These features provide a useful constraint on model estimates of CO2 fluxes from the ocean and the land biosphere. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928701244&doi=10.1002%2f2014GL062768&partnerID=40&md5=8aa6584c7e0138c1f780f5ef95d3e0bb
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8395
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Oceanography and Geochemistry Research Department, Meteorological Research Institute, Tsukuba, Japan
Recommended Citation:
Matsueda H.,Machida T.,Sawa Y.,et al. Long-term change of CO2 latitudinal distribution in the upper troposphere[J]. Geophysical Research Letters,2015-01-01,42(7).