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IASI carbon monoxide validation over the Arctic during POLARCAT spring and summer campaigns

Pommier, M. und Law, K. S. und Clerbaux, C. und Turquety, S. und Hurtmans, D. und Hadji-Lazaro, J. und Coheur, P.-F. und Schlager, H. und Ancellet, G. und Paris, J.-D. und Nédélec, P. und Diskin, G. S. und Podolske, J. R. und Holloway, J.S. und Bernath, P. (2010) IASI carbon monoxide validation over the Arctic during POLARCAT spring and summer campaigns. Atmospheric Chemistry and Physics, 10, Seiten 10655-10678. Copernicus Publications on behalf of the European Geosciences Union. DOI: 10.5194/acp-10-10655-2010.

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Offizielle URL: http://www.atmos-chem-phys.net/10/10655/2010/

Kurzfassung

In this paper, we provide a detailed comparison between carbon monoxide (CO) data measured by the Infrared Atmospheric Sounding Interferometer (IASI)/MetOp and aircraft observations over the Arctic. The CO measurements were obtained during North American (NASA ARCTAS and NOAA ARCPAC) and European campaigns (POLARCAT-France, POLARCAT-GRACE and YAK-AEROSIB) as part of the International Polar Year (IPY) POLARCAT activity in spring and summer 2008. During the campaigns different air masses were sampled including clean air, polluted plumes originating from anthropogenic sources in Europe, Asia and North America, and forest fire plumes originating from Siberia and Canada. The paper illustrates that CO-rich plumes following different transport pathways were well captured by the IASI instrument, in particular due to the high spatial coverage of IASI. The comparison between IASI CO total columns, 0�5 km partial columns and profiles with collocated aircraft data was achieved by taking into account the different sensitivity and geometry of the sounding instruments. A detailed analysis is provided and the agreement is discussed in terms of information content and surface properties at the location of the observations. For profiles, the data were found to be in good agreement in spring with differences lower than 17%, whereas in summer the difference can reach 20% for IASI profiles below 8 km for polluted cases. For total columns the correlation coefficients ranged from 0.15 to 0.74 (from 0.47 to 0.77 for partial columns) in spring and from 0.26 to 0.84 (from 0.66 to 0.88 for partial columns) in summer. A better agreement is seen over the sea in spring (0.73 for total column and 0.78 for partial column) and over the land in summer (0.69 for total columns and 0.81 for partial columns). The IASI vertical sensitivity was better over land than over sea, and better over land than over sea ice and snow allowing a higher potential to detect CO vertical distribution during summer.

Dokumentart:Zeitschriftenbeitrag
Titel:IASI carbon monoxide validation over the Arctic during POLARCAT spring and summer campaigns
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Pommier, M.UPMC Univ. Paris 06, Paris, F
Law, K. S.UPMC Univ. Paris 06, Paris, F
Clerbaux, C.UPMC Univ. Paris 06, Paris, F
Turquety, S.UPMC Univ. Paris 06, Paris, F
Hurtmans, D.ULB, Brussel, B
Hadji-Lazaro, J.UPMC Univ. Paris 06, Paris, F
Coheur, P.-F.ULB, Brussel, B
Schlager, H.DLR
Ancellet, G.UPMC Univ. Paris 06, Paris, F
Paris, J.-D.LSCE/IPSL, Saclay, F
Nédélec, P.Univ. de Toulouse, F
Diskin, G. S.NASA Langley Research Center, Hampton, USA
Podolske, J. R.NASA Ames Research Center, Moffett Field, CA, USA
Holloway, J.S.NOAA Aeronomy Lab. Boulder, CO, USA
Bernath, P.Department of Chemistry, Univ. of Waterloo, CND
Datum:2010
Erschienen in:Atmospheric Chemistry and Physics
Referierte Publikation:Ja
In Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:10
DOI :10.5194/acp-10-10655-2010
Seitenbereich:Seiten 10655-10678
Verlag:Copernicus Publications on behalf of the European Geosciences Union
Status:veröffentlicht
Stichwörter:Arctic, carbon monoxide, IASI
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Atmosphären- und Klimaforschung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Atmosphärische Spurenstoffe
Hinterlegt von: Yasemin Yilmaz
Hinterlegt am:09 Dez 2010 12:39
Letzte Änderung:12 Dez 2013 21:08

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