globalchange  > 气候减缓与适应
DOI: 10.1002/2017JD027836
Scopus记录号: 2-s2.0-85041102304
论文题名:
On the Ability of Space-Based Passive and Active Remote Sensing Observations of CO2 to Detect Flux Perturbations to the Carbon Cycle
作者: Crowell S.M.R.; Randolph Kawa S.; Browell E.V.; Hammerling D.M.; Moore B.; Schaefer K.; Doney S.C.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:2
起始页码: 1460
结束页码: 1477
语种: 英语
英文关键词: ASCENDS ; Carbon Emissions ; Fossil Fuel ; OCO-2 ; Permafrost ; Satellite Remote Sensing
Scopus关键词: carbon cycle ; carbon dioxide ; carbon emission ; flux measurement ; fossil fuel ; GOSAT ; OCO ; permafrost ; perturbation ; remote sensing ; satellite data ; thawing ; zenith angle ; China
英文摘要: Space-borne observations of CO2 are vital to gaining understanding of the carbon cycle in regions of the world that are difficult to measure directly, such as the tropical terrestrial biosphere, the high northern and southern latitudes, and in developing nations such as China. Measurements from passive instruments such as GOSAT and OCO-2, however, are constrained by solar zenith angle limitations as well as sensitivity to the presence of clouds and aerosols. Active measurements such as those in development for the Active Sensing of CO2 Emissions over Nights, Days and Seasons (ASCENDS) mission show strong potential for making measurements in the high-latitude winter and in cloudy regions. In this work we examine the enhanced flux constraint provided by the improved coverage from an active measurement such as ASCENDS. The simulation studies presented here show that with sufficient precision, ASCENDS will detect permafrost thaw and fossil fuel emissions shifts at annual and seasonal time scales, even in the presence of transport errors, representativeness errors, and biogenic flux errors. While OCO-2 can detect some of these perturbations at the annual scale, the seasonal sampling provided by ASCENDS provides the stronger constraint. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114684
Appears in Collections:气候减缓与适应

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作者单位: College of Atmospheric and Geographic Sciences, University of Oklahoma, Norman, OK, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; STARSS-III Affiliate, NASA Langley Research Center, Hampton, VA, United States; Institute for Mathematics Applied to Geosciences, National Center for Atmospheric Research, Boulder, CO, United States; National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Department of Environmental Sciences, University of Virginia, Charlottesville, VA, United States

Recommended Citation:
Crowell S.M.R.,Randolph Kawa S.,Browell E.V.,et al. On the Ability of Space-Based Passive and Active Remote Sensing Observations of CO2 to Detect Flux Perturbations to the Carbon Cycle[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(2)
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