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

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


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


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.

Item URL in elib:https://elib.dlr.de/67239/
Document Type:Article
Title:IASI carbon monoxide validation over the Arctic during POLARCAT spring and summer campaigns
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pommier, M.UPMC Univ. Paris 06, Paris, FUNSPECIFIED
Law, K. S.UPMC Univ. Paris 06, Paris, FUNSPECIFIED
Clerbaux, C.UPMC Univ. Paris 06, Paris, FUNSPECIFIED
Turquety, S.UPMC Univ. Paris 06, Paris, FUNSPECIFIED
Hurtmans, D.ULB, Brussel, BUNSPECIFIED
Hadji-Lazaro, J.UPMC Univ. Paris 06, Paris, FUNSPECIFIED
Coheur, P.-F.ULB, Brussel, BUNSPECIFIED
Ancellet, G.UPMC Univ. Paris 06, Paris, FUNSPECIFIED
Nédélec, P.Univ. de Toulouse, FUNSPECIFIED
Diskin, G. S.NASA Langley Research Center, Hampton, USAUNSPECIFIED
Podolske, J. R.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Holloway, J.S.NOAA Aeronomy Lab. Boulder, CO, USAUNSPECIFIED
Bernath, P.Department of Chemistry, Univ. of Waterloo, CNDUNSPECIFIED
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.5194/acp-10-10655-2010
Page Range:pp. 10655-10678
Publisher:Copernicus Publications
Keywords:Arctic, carbon monoxide, IASI
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Yilmaz, Yasemin
Deposited On:09 Dec 2010 12:39
Last Modified:02 May 2019 14:04

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