Satellite monitoring of ammonia: A case study of the San Joaquin Valley

被引：98

作者：

Clarisse, Lieven ^{[1
]}

Shephard, Mark W. ^{[2
]}

Dentener, Frank ^{[3
]}

Hurtmans, Daniel ^{[1
]}

Cady-Pereira, Karen ^{[2
]}

Karagulian, Federico ^{[1
]}

Van Damme, Martin ^{[1
]}

Clerbaux, Cathy ^{[1
,4
]}

Coheur, Pierre-Francois ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Serv Chim Quant & Photophys, B-1050 Brussels, Belgium

[2] Atmospher & Environm Res Inc, Lexington, MA 02421 USA

[3] Commiss European Communities, Joint Res Ctr, I-21027 Ispra, Italy

[4] Univ Versailles St Quentin, Univ Paris 06, LATMOS IPSL, CNRS,INSU, Paris, France

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 2010年 / 115卷

关键词：

PARTICULATE MATTER; UNITED-STATES; AIR-QUALITY; EMISSION INVENTORY; REDUCED NITROGEN; NITRATE AEROSOLS; NH3; CALIFORNIA; POLLUTION; MODEL;

D O I：

10.1029/2009JD013291

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Atmospheric ammonia (NH3) has recently been observed with infrared sounders from space. Here we present 1 year of detailed bidaily satellite retrievals with the Infrared Atmospheric Sounding Interferometer and some retrievals of the Tropospheric Emission Spectrometer over the San Joaquin Valley, California, a highly polluted agricultural production region. Several sensitivity issues are discussed related to the sounding of ammonia, in terms of degrees of freedom, averaging kernels, and altitude of maximum sensitivity and in relation to thermal contrast and concentration. We also discuss their seasonal dependence and sources of errors. We demonstrate boundary layer sensitivity of infrared sounders when there is a large thermal contrast between the surface and the bottom of the atmosphere. For the San Joaquin Valley, large thermal contrast is the case for daytime measurements in spring, summer, and autumn and for nighttime measurements in autumn and winter when a large negative thermal contrast is amplified by temperature inversion.

引用

页数：15

共 66 条

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