气候变化领域集成服务门户(CCPortal): Air pollution trends measured from Terra: CO and AOD over industrial, fire-prone, and background regions

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DOI	10.1016/j.rse.2020.112275
	Air pollution trends measured from Terra: CO and AOD over industrial, fire-prone, and background regions
	Buchholz R.R.; Worden H.M.; Park M.; Francis G.; Deeter M.N.; Edwards D.P.; Emmons L.K.; Gaubert B.; Gille J.; Martínez-Alonso S.; Tang W.; Kumar R.; Drummond J.R.; Clerbaux C.; George M.; Coheur P.-F.; Hurtmans D.; Bowman K.W.; Luo M.; Payne V.H.; Worden J.R.; Chin M.; Levy R.C.; Warner J.; Wei Z.; Kulawik S.S.
发表日期	2021
ISSN	00344257
卷号	256
英文摘要	Following past studies to quantify decadal trends in global carbon monoxide (CO) using satellite observations, we update estimates and find a CO trend in column amounts of about −0.50 % per year between 2002 to 2018, which is a deceleration compared to analyses performed on shorter records that found −1 % per year. Aerosols are co-emitted with CO from both fires and anthropogenic sources but with a shorter lifetime than CO. A combined trend analysis of CO and aerosol optical depth (AOD) measurements from space helps to diagnose the drivers of regional differences in the CO trend. We use the long-term records of CO from the Measurements of Pollution in the Troposphere (MOPITT) and AOD from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument. Other satellite instruments measuring CO in the thermal infrared, AIRS, TES, IASI, and CrIS, show consistent hemispheric CO variability and corroborate results from the trend analysis performed with MOPITT CO. Trends are examined by hemisphere and in regions for 2002 to 2018, with uncertainties quantified. The CO and AOD records are split into two sub-periods (2002 to 2010 and 2010 to 2018) in order to assess trend changes over the 16 years. We focus on four major population centers: Northeast China, North India, Europe, and Eastern USA, as well as fire-prone regions in both hemispheres. In general, CO declines faster in the first half of the record compared to the second half, while AOD trends show more variability across regions. We find evidence of the atmospheric impact of air quality management policies. The large decline in CO found over Northeast China is initially associated with an improvement in combustion efficiency, with subsequent additional air quality improvements from 2010 onwards. Industrial regions with minimal emission control measures such as North India become more globally relevant as the global CO trend weakens. We also examine the CO trends in monthly percentile values to understand seasonal implications and find that local changes in biomass burning are sufficiently strong to counteract the global downward trend in atmospheric CO, particularly in late summer. © 2020 The Author(s)
英文关键词	AOD; Carbon monoxide; Interannual variability; NASA/Terra satellite; Trend
语种	英语
scopus关键词	Aerosols; Air quality; Carbon monoxide; Emission control; Infrared devices; Infrared instruments; Quality management; Radiometers; Aerosol optical depths; Air quality improvement; Anthropogenic sources; Combustion efficiencies; Emission control measures; Measurements of pollution in the tropospheres; Moderate resolution imaging spectroradiometer; Satellite observations; Chromium compounds; aerosol; aerosol composition; air quality; atmospheric pollution; biomass burning; carbon emission; carbon monoxide; combustion; optical depth; trend analysis; China; Europe; India; United States
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178944
作者单位	Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Advanced Study Program, National Center for Atmospheric Research, Boulder, CO, United States; Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; University of Toronto, Toronto, ON, Canada; LATMOS/IPSL, Sorbonne Université, UVSQ, CNRS, Paris, France; Université libre de Bruxelles (ULB), Service de Chimie Quantique et Photophysique, Atmospheric Spectroscopy, Brussels, Belgium; NASA Jet Propulsion Laboratory (JPL), Pasadena, CA, United States; Joint Institute for Regional Earth System Science and Engineering (JIFRESSE), University of California, Los Angeles, CA, United States; NASA/Goddard Space Flight Center (GSFC), Greenbelt, MD, United States; Dept. of Atmospheric & Oceanic Science, University of Maryland, College Park, MD, United States; IMSG, Inc. at NOAA/NESDIS Center for Satellite Applications and Research (STAR), College P...
推荐引用方式 GB/T 7714	Buchholz R.R.,Worden H.M.,Park M.,et al. Air pollution trends measured from Terra: CO and AOD over industrial, fire-prone, and background regions[J],2021,256.
APA	Buchholz R.R..,Worden H.M..,Park M..,Francis G..,Deeter M.N..,...&Kulawik S.S..(2021).Air pollution trends measured from Terra: CO and AOD over industrial, fire-prone, and background regions.Remote Sensing of Environment,256.
MLA	Buchholz R.R.,et al."Air pollution trends measured from Terra: CO and AOD over industrial, fire-prone, and background regions".Remote Sensing of Environment 256(2021).