DOI: 10.1002/2016GL067839
论文题名: The atmospheric partial lifetime of carbon tetrachloride with respect to the global soil sink
作者: Rhew R.C. ; Happell J.D.
刊名: Geophysical Research Letters
ISSN: 0094-9212
EISSN: 1944-8943
出版年: 2016
卷: 43, 期: 6 起始页码: 2889
结束页码: 2895
语种: 英语
英文关键词: AVHRR
; biome
; carbon tetrachloride
; soil
; tetrachloromethane
; tundra
Scopus关键词: Advanced very high resolution radiometers (AVHRR)
; Carbon tetrachloride
; Soils
; Atmospheric concentration
; Atmospheric lifetime
; AVHRR
; Biome
; Field observations
; Land cover classification
; Tetrachloromethanes
; Tundra
; Uncertainty analysis
; atmospheric gas
; AVHRR
; biogeochemical cycle
; biome
; carbon balance
; concentration (composition)
; flux measurement
; land cover
; soil chemistry
; source-sink dynamics
; tundra
; uncertainty analysis
英文摘要: The magnitude of the terrestrial soil sink for atmospheric carbon tetrachloride (CCl4) remains poorly constrained, with the estimated uncertainty range of CCl4 partial lifetimes between ∼110 and 910 years. Field observations are sparse, and there are uncertainties in extrapolating these results to the global scale. Here we add to the published CCl4 fluxes with additional field measurements, and we employ a land cover classification scheme based on Advanced Very High Resolution Radiometer measurements that align more closely with the measurement sites to reevaluate the global CCl4 soil sink. We calculate an updated partial lifetime of CCl4 with respect to the soil sink to be 375 (288-536) years, which is 50 to 90% longer than the most recently published best estimates of the soil sink partial lifetime (195 and 245 years). This translates into a longer overall atmospheric lifetime estimate, which is more consistent with the observed atmospheric concentration trend and interhemispheric gradient. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978324249&doi=10.1002%2f2016GL067839&partnerID=40&md5=7c36416cea4ffbbded9d3cccbb9aa1d7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10175
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: Department of Geography, Berkeley Atmospheric Sciences Center, University of California, Berkeley, CA, United States
Recommended Citation:
Rhew R.C.,Happell J.D.. The atmospheric partial lifetime of carbon tetrachloride with respect to the global soil sink[J]. Geophysical Research Letters,2016-01-01,43(6).