elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

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 on behalf of the European Geosciences Union. DOI: 10.5194/acp-10-10655-2010.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
2MB

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

Abstract

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.

Document Type:Article
Title:IASI carbon monoxide validation over the Arctic during POLARCAT spring and summer campaigns
Authors:
AuthorsInstitution or Email of Authors
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
Date:2010
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:10
DOI:10.5194/acp-10-10655-2010
Page Range:pp. 10655-10678
Publisher:Copernicus Publications on behalf of the European Geosciences Union
Status:Published
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: Yasemin Yilmaz
Deposited On:09 Dec 2010 12:39
Last Modified:12 Dec 2013 21:08

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.