气候变化领域集成服务门户(CCPortal): Measurement report: Evolution and distribution of NH3 over Mexico City from ground-based and satellite infrared spectroscopic measurements

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DOI	10.5194/acp-22-14119-2022
	Measurement report: Evolution and distribution of NH3 over Mexico City from ground-based and satellite infrared spectroscopic measurements
	Herrera, Beatriz; Bezanilla, Alejandro; Blumenstock, Thomas; Dammers, Enrico; Hase, Frank; Clarisse, Lieven; Magaldi, Adolfo; Rivera, Claudia; Stremme, Wolfgang; Strong, Kimberly; Viatte, Camille; Van Damme, Martin; Grutter, Michel
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	14119
结束页码	14132
卷号	22 期号:21 页码:14
英文摘要	Ammonia (NH3) is the most abundant alkaline compound in the atmosphere, with consequences for the environment, human health, and radiative forcing. In urban environments, it is known to play a key role in the formation of secondary aerosols through its reactions with nitric and sulfuric acids. However, there are only a few studies about NH(3 )in Mexico City. In this work, atmospheric NH3 was measured over Mexico City between 2012 and 2020 by means of ground-based solar absorption spectroscopy using Fourier transform infrared (FTIR) spectrometers at two sites (urban and remote). Total columns of NH3 were retrieved from the FTIR spectra and compared with data obtained from the Infrared Atmospheric Sounding Interferometer (IASI) satellite instrument. The diurnal variability of NH3 differs between the two FTIR stations and is strongly influenced by the urban sources. Most of the NH3 measured at the urban station is from local sources, while the NH3 observed at the remote site is most likely transported from the city and surrounding areas. The evolution of the boundary layer and the temperature play a significant role in the recorded seasonal and diurnal patterns of NH3. Although the vertical columns of NH3 are much larger at the urban station, the observed annual cycles are similar for both stations, with the largest values in the warm months, such as April and May. The IASI measurements underestimate the FTIR NH3 total columns by an average of 32.2 +/- 27.5 % but exhibit similar temporal variability. The NH3 spatial distribution from IASI shows the largest columns in the northeast part of the city. In general, NH3 total columns over Mexico City measured at the FTIR stations exhibited an average annual increase of 92 +/- 3.9 x 10(13) molecules cm(-2) yr(-1) (urban, from 2012 to 2019) and 8.4 +/- 1.4 x 10(13) molecules cm(-2) yr(-1) (remote, from 2012 to 2020), while IASI data within 20 km of the urban station exhibited an average annual increase of 38 +/- 7.6 x 10(13) molecules cm(-2) yr(-1) from 2008 to 2018.
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:000878233300001
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/273388
作者单位	Universidad Nacional Autonoma de Mexico; University of Toronto; University Toronto Scarborough; University of Toronto; Helmholtz Association; Karlsruhe Institute of Technology; Netherlands Organization Applied Science Research; Universite Libre de Bruxelles; Universidad Nacional Autonoma de Mexico; Centre National de la Recherche Scientifique (CNRS); UDICE-French Research Universities; Sorbonne Universite; Universite Paris Cite; Universite Paris Saclay
推荐引用方式 GB/T 7714	Herrera, Beatriz,Bezanilla, Alejandro,Blumenstock, Thomas,et al. Measurement report: Evolution and distribution of NH3 over Mexico City from ground-based and satellite infrared spectroscopic measurements[J],2022,22(21):14.
APA	Herrera, Beatriz.,Bezanilla, Alejandro.,Blumenstock, Thomas.,Dammers, Enrico.,Hase, Frank.,...&Grutter, Michel.(2022).Measurement report: Evolution and distribution of NH3 over Mexico City from ground-based and satellite infrared spectroscopic measurements.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(21),14.
MLA	Herrera, Beatriz,et al."Measurement report: Evolution and distribution of NH3 over Mexico City from ground-based and satellite infrared spectroscopic measurements".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.21(2022):14.