气候变化领域集成服务门户(CCPortal): Inverse estimation of NO x emissions over China and India 2005-2016: Contrasting recent trends and future perspectives

CCPortal

DOI	10.1088/1748-9326/ab4d7f
	Inverse estimation of NO x emissions over China and India 2005-2016: Contrasting recent trends and future perspectives
	Itahashi S.; Yumimoto K.; Kurokawa J.-I.; Morino Y.; Nagashima T.; Miyazaki K.; Maki T.; Ohara T.
发表日期	2019
ISSN	17489318
卷号	14 期号:12
英文摘要	Bottom-up emission inventories can provide valuable information for understanding emission status and are needed as input datasets to drive chemical transport models. However, this type of inventory has the disadvantage of taking several years to be compiled because it relies on a statistical dataset. Top-down approaches use satellite data as a constraint and overcome this disadvantage. We have developed an immediate inversion system to estimate anthropogenic NO x emissions with NO2 column density constrained by satellite observations. The proposed method allows quick emission updates and considers model and observation errors by applying linear unbiased optimum estimations. We used this inversion system to estimate the variation of anthropogenic NO x emissions from China and India from 2005 to 2016. On the one hand, NO x emissions from China increased, reaching a peak in 2011 with 29.5 Tg yr-1, and subsequently decreased to 25.2 Tg yr-1 in 2016. On the other hand, NO x emissions from India showed a continuous increase from 2005 to 2016, reaching 13.9 Tg yr-1 in 2016. These opposing trends from 2011 to 2016 were -0.83 and +0.76 Tg yr-1 over China and India, respectively, and correspond to strictly regulated and unregulated future scenarios. Assuming these trends continue after 2016, we expect NO x emissions from China and India will be similar in 2023, with India becoming the world's largest NO x emissions source in 2024. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	China; CMAQ; India; inverse estimation; NOx emission
语种	英语
scopus关键词	Digital storage; Nitrogen oxides; China; CMAQ; India; Inverse estimation; NOx emissions; Inverse problems; estimation method; nitric oxide; pollution monitoring; China
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154314
作者单位	Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 1646 Abiko, Abiko, Chiba, 270-1194, Japan; Research Institute for Applied Mechanics (RIAM), Kyushu University, 6-1 Kasuga Park, Kasuga, Fukuoka, 816-8580, Japan; Asia Center for Air Pollution Research (ACAP), Japan Environmental Sanitation Center, 1182 Sowa, Nishi-ku, Niigata, 950-2144, Japan; National Institute for Environmental Studies (NIES), 16-2 Onogawa, Ibaraki Tsukuba, 305-8506, Japan; Jet Propulsion Laboratory (JPL), California Institute of Technology, 4800 Oak Grove Dr, Pasadena, CA 91109, United States; Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3173-25 Showa-machi, Kanazawa-ku, Kanagawa Yokohama, 236-0001, Japan; Meteorological Research Institute (MRI), Japan Meteorological Agency (JMA), 1-1 Nagamine, Ibaraki Tsukuba, 305-0032, Japan
推荐引用方式 GB/T 7714	Itahashi S.,Yumimoto K.,Kurokawa J.-I.,et al. Inverse estimation of NO x emissions over China and India 2005-2016: Contrasting recent trends and future perspectives[J],2019,14(12).
APA	Itahashi S..,Yumimoto K..,Kurokawa J.-I..,Morino Y..,Nagashima T..,...&Ohara T..(2019).Inverse estimation of NO x emissions over China and India 2005-2016: Contrasting recent trends and future perspectives.Environmental Research Letters,14(12).
MLA	Itahashi S.,et al."Inverse estimation of NO x emissions over China and India 2005-2016: Contrasting recent trends and future perspectives".Environmental Research Letters 14.12(2019).