DOI: 10.1002/2016GL067843
论文题名: Comparing GOSAT observations of localized CO2 enhancements by large emitters with inventory-based estimates
作者: Janardanan R. ; Maksyutov S. ; Oda T. ; Saito M. ; Kaiser J.W. ; Ganshin A. ; Stohl A. ; Matsunaga T. ; Yoshida Y. ; Yokota T.
刊名: Geophysical Research Letters
ISSN: 0094-9130
EISSN: 1944-8861
出版年: 2016
卷: 43, 期: 7 起始页码: 3486
结束页码: 3493
语种: 英语
英文关键词: anthropogenic CO2 emission
; emission inventory
; GOSAT
; megacities
Scopus关键词: Greenhouse gases
; Satellites
; Anthropogenic CO
; Atmospheric transport model
; Emission inventories
; GOSAT
; Greenhouse gases observing satellites
; Megacities
; Satellite instruments
; Satellite observations
; Carbon dioxide
英文摘要: We employed an atmospheric transport model to attribute column-averaged CO2 mixing ratios (XCO2) observed by Greenhouse gases Observing SATellite (GOSAT) to emissions due to large sources such as megacities and power plants. XCO2 enhancements estimated from observations were compared to model simulations implemented at the spatial resolution of the satellite observation footprint (0.1° × 0.1°). We found that the simulated XCO2 enhancements agree with the observed over several continental regions across the globe, for example, for North America with an observation to simulation ratio of 1.05 ± 0.38 (p < 0.1), but with a larger ratio over East Asia (1.22 ± 0.32; p < 0.05). The obtained observation-model discrepancy (22%) for East Asia is comparable to the uncertainties in Chinese emission inventories (∼15%) suggested by recent reports. Our results suggest that by increasing the number of observations around emission sources, satellite instruments like GOSAT can provide a tool for detecting biases in reported emission inventories. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979470075&doi=10.1002%2f2016GL067843&partnerID=40&md5=fe95392685449c4e46eb793be7f153a5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10093
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: Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, Japan
Recommended Citation:
Janardanan R.,Maksyutov S.,Oda T.,et al. Comparing GOSAT observations of localized CO2 enhancements by large emitters with inventory-based estimates[J]. Geophysical Research Letters,2016-01-01,43(7).