Validation of tropospheric NO2 column measurements of GOME-2A and OMI using MAX-DOAS and direct sun network observations

被引：50

作者：

Pinardi, Gaia ^{[1
]}

Van Roozendael, Michel ^{[1
]}

Hendrick, Francois ^{[1
]}

Theys, Nicolas ^{[1
]}

Abuhassan, Nader ^{[2
,3
]}

Bais, Alkiviadis ^{[4
]}

Boersma, Folkert ^{[5
,6
]}

Cede, Alexander ^{[2
,7
]}

Chong, Jihyo ^{[8
]}

Donner, Sebastian ^{[9
]}

Drosoglou, Theano ^{[4
]}

Dzhola, Anatoly ^{[10
]}

Eskes, Henk ^{[5
]}

Friess, Udo ^{[11
]}

Granville, Jose ^{[1
]}

Herman, Jay R. ^{[2
,3
]}

Holla, Robert ^{[12
]}

Hovila, Jari ^{[13
]}

Irie, Hitoshi ^{[14
]}

Kanaya, Yugo ^{[18
]}

Karagkiozidis, Dimitris ^{[4
]}

Kouremeti, Natalia ^{[4
,15
]}

Lambert, Jean-Christopher ^{[1
]}

Ma, Jianzhong ^{[16
]}

Peters, Enno ^{[17
]}

Piters, Ankie ^{[5
]}

Postylyakov, Oleg ^{[10
]}

Richter, Andreas ^{[17
]}

Remmers, Julia ^{[9
]}

Takashima, Hisahiro ^{[18
,19
]}

Tiefengraber, Martin ^{[7
,20
]}

Valks, Pieter ^{[21
]}

Vlemmix, Tim ^{[5
]}

Wagner, Thomas ^{[9
]}

Wittrock, Folkard ^{[17
]}

机构：

[1] BIRA IASB, Royal Belgian Inst Space Aeron, Brussels, Belgium

[2] NASA, Goddard Space Flight Ctr, GSFC, Greenbelt, MD USA

[3] Univ Maryland, Joint Ctr Earth Syst Technol, Baltimore, MD 21201 USA

[4] Aristotle Univ Thessaloniki, Lab Atmospher Phys, AUTH, Thessaloniki, Greece

[5] KNMI, Royal Netherlands Meteorol Inst, De Bilt, Netherlands

[6] Wageningen Univ, Meteorol & Air Qual Grp, Wageningen, Netherlands

[7] LuftBlick, Innsbruck, Austria

[8] Gwangju Inst Sci & Technol GIST, Gwangju, South Korea

[9] Max Planck Inst Chem, Mainz, Germany

[10] Russian Acad Sci, AM Obukhov Inst Atmospher Phys, IAP RAS, Moscow, Russia

[11] Heidelberg Univ, Inst Umweltphys, Heidelberg, Germany

[12] DWD, German Weather Serv, Hohenpeissenberg, Germany

[13] Finnish Meteorol Inst, FMI, Helsinki, Finland

[14] Chiba Univ, Ctr Environm Remote Sensing, Chiba, Japan

[15] World Radiat Ctr PMOD WRC, Phys Meteoro Observ Davos, Davos, Switzerland

[16] Chinese Acad Meteorol Sci, Beijing, Peoples R China

[17] Univ Bremen, Inst Umweltphys, Bremen, Germany

[18] JAMSTEC, Res Inst Global Change, Yokohama, Kanagawa, Japan

[19] Fukuoka Univ, Fac Sci, Fukuoka, Japan

[20] Univ Innsbruck, Dept Atmospher & Cryospher Sci, Innsbruck, Austria

[21] Deutsch Zentrum Luft & Raumfahrt, Inst Method Fernerkundung IMF, Oberpfaffenhofen, Germany

来源：

ATMOSPHERIC MEASUREMENT TECHNIQUES | 2020年 / 13卷 / 11期

关键词：

OPTICAL-ABSORPTION SPECTROSCOPY; MASS FACTOR CALCULATION; AVERAGED MIXING RATIOS; NITROGEN-DIOXIDE; RETRIEVAL ALGORITHM; HIGH-RESOLUTION; AIR-QUALITY; ATMOSPHERIC COMPOSITION; SATELLITE-OBSERVATIONS; PANDORA SPECTROMETER;

D O I：

10.5194/amt-13-6141-2020

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Multi-axis differential optical absorption spectroscopy (MAX-DOAS) and direct sun NO2 vertical column network data are used to investigate the accuracy of tropospheric NO2 column measurements of the GOME-2 instrument on the MetOp-A satellite platform and the OMI instrument on Aura. The study is based on 23 MAX-DOAS and 16 direct sun instruments at stations distributed worldwide. A method to quantify and correct for horizontal dilution effects in heterogeneous NO2 field conditions is proposed. After systematic application of this correction to urban sites, satellite measurements are found to present smaller biases compared to ground-based reference data in almost all cases. We investigate the seasonal dependence of the validation results as well as the impact of using different approaches to select satellite ground pixels in coincidence with ground-based data. In optimal comparison conditions (satellite pixels containing the station) the median bias between satellite tropospheric NO2 column measurements and the ensemble of MAX-DOAS and direct sun measurements is found to be significant and equal to -34 % for GOME-2A and -24 % for OMI. These biases are further reduced to -24 % and -18 % respectively, after application of the dilution correction. Comparisons with the QA4ECV satellite product for both GOME-2A and OMI are also performed, showing less scatter but also a slightly larger median tropospheric NO2 column bias with respect to the ensemble of MAX-DOAS and direct sun measurements.

引用

页码：6141 / 6174

页数：34

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