Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027836 |
On the Ability of Space-Based Passive and Active Remote Sensing Observations of CO2 to Detect Flux Perturbations to the Carbon Cycle | |
Crowell, Sean M. R.1; Kawa, S. Randolph2; Browell, Edward V.3; Hammerling, Dorit M.4; Moore, Berrien1; Schaefer, Kevin5; Doney, Scott C.6,7 | |
2018-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:2页码:1460-1477 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
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. Plain Language Summary Active and passive remote sensors show the potential to provide unprecedented information on the carbon cycle. With the all-season sampling, active remote sensors are more capable of constraining high-latitude emissions. The reduced sensitivity to cloud and aerosol also makes active sensors more capable of providing information in cloudy and polluted scenes with sufficient accuracy. These experiments account for errors that are fundamental to the top-down approach for constraining emissions, and even including these sources of error, we show that satellite remote sensors are critical for understanding the carbon cycle. |
英文关键词 | ASCENDS OCO-2 Permafrost Carbon Emissions Satellite Remote Sensing Fossil Fuel |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425520200050 |
WOS关键词 | SATELLITE-OBSERVATIONS ; DATA ASSIMILATION ; PERFORMANCE ; TRANSPORT ; CLIMATE ; RETRIEVALS ; VALIDATION ; SIMULATION ; ALGORITHM ; PRODUCTS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33611 |
专题 | 气候变化 |
作者单位 | 1.Univ Oklahoma, Coll Atmospher & Geog Sci, Norman, OK 73019 USA; 2.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 3.NASA, Langley Res Ctr, STARSS Affiliate 3, Hampton, VA 23665 USA; 4.Natl Ctr Atmospher Res, Inst Math Appl Geosci, POB 3000, Boulder, CO 80307 USA; 5.Univ Colorado Boulder, Natl Snow & Ice Data Ctr, Cooperat Inst Res Environm Sci, Boulder, CO USA; 6.Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, Woods Hole, MA 02543 USA; 7.Univ Virginia, Dept Environm Sci, Clark Hall, Charlottesville, VA 22903 USA |
推荐引用方式 GB/T 7714 | Crowell, Sean M. R.,Kawa, S. Randolph,Browell, Edward 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,2018,123(2):1460-1477. |
APA | Crowell, Sean M. R..,Kawa, S. Randolph.,Browell, Edward V..,Hammerling, Dorit M..,Moore, Berrien.,...&Doney, Scott C..(2018).On the Ability of Space-Based Passive and Active Remote Sensing Observations of CO2 to Detect Flux Perturbations to the Carbon Cycle.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(2),1460-1477. |
MLA | Crowell, Sean M. R.,et al."On the Ability of Space-Based Passive and Active Remote Sensing Observations of CO2 to Detect Flux Perturbations to the Carbon Cycle".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.2(2018):1460-1477. |
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