气候变化领域集成服务门户(CCPortal): Assimilation of S5P/TROPOMI carbon monoxide data with the global CAMS near-real-time system

CCPortal

DOI	10.5194/acp-22-14355-2022
	Assimilation of S5P/TROPOMI carbon monoxide data with the global CAMS near-real-time system
	Inness, Antje; Aben, Ilse; Ades, Melanie; Borsdorff, Tobias; Flemming, Johannes; Jones, Luke; Landgraf, Jochen; Langerock, Bavo; Nedelec, Philippe; Parrington, Mark; Ribas, Roberto
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	14355
结束页码	14376
卷号	22 期号:21 页码:22
英文摘要	The Tropospheric Monitoring Instrument (TROPOMI) on the Copernicus Sentinel 5 Precursor (S5P) satellite, launched in October 2017, provides a wealth of atmospheric composition data, including total columns of carbon monoxide (TCCO) at high horizontal resolution (5.5 km x 7 km). Near-real-time TROPOMI TCCO data have been monitored in the global data assimilation system of the Copernicus Atmosphere Monitoring Service (CAMS) since November 2018 to assess the quality of the data. The CAMS system already routinely assimilates TCCO data from the Measurement of Pollution in the Troposphere (MOPITT) instrument and the Infrared Atmospheric Sounding Interferometer (IASI) outside the polar regions. The assimilation of TROPOMI TCCO data in the CAMS system was tested for the period 6 July to 31 December 2021, i.e. after the TROPOMI algorithm update to version 02.02.00 in July 2021. By assimilating TROPOMI TCCO observations, the CAMS CO columns increase by on average 8 %, resulting in an improved fit to independent observations (LAGOS aircraft profiles and NDACC Fourier transform infrared (FTIR) tropospheric and total-column CO data) compared to a version of the CAMS system where only TCCO from MOPITT and IASI is assimilated. The largest absolute and relative changes from the assimilation of TROPOMI CO are found in the lower and middle troposphere, i.e. that part of the atmosphere that is not already well constrained by the assimilated TIR MOPITT and IASI data. The largest impact near the surface comes from clear-sky TROPOMI data over land, and additional vertical information comes from the retrievals of measurements in cloudy conditions. July and August 2021 saw record numbers of boreal wildfires over North America and Russia, leading to large amounts of CO being released into the atmosphere. The paper assesses the impact of TROPOMI CO assimilation on selected CO plumes more closely. While the CO column can be well constrained by the assimilation of TROPOMI CO data, and the fit to individual IAGOS CO profiles in the lower and middle troposphere is considerably improved, the TROPOMI CO columns do not provide further constraints on individual plumes that are transported across continents and oceans at altitudes above 500 hPa.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000882549100001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273768
作者单位	European Centre for Medium-Range Weather Forecasts (ECMWF); Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Universite de Toulouse; Universite Toulouse III - Paul Sabatier; Universite de Toulouse
推荐引用方式 GB/T 7714	Inness, Antje,Aben, Ilse,Ades, Melanie,et al. Assimilation of S5P/TROPOMI carbon monoxide data with the global CAMS near-real-time system[J],2022,22(21):22.
APA	Inness, Antje.,Aben, Ilse.,Ades, Melanie.,Borsdorff, Tobias.,Flemming, Johannes.,...&Ribas, Roberto.(2022).Assimilation of S5P/TROPOMI carbon monoxide data with the global CAMS near-real-time system.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(21),22.
MLA	Inness, Antje,et al."Assimilation of S5P/TROPOMI carbon monoxide data with the global CAMS near-real-time system".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.21(2022):22.