Initial validation of ozone measurements from the High Resolution Dynamics Limb Sounder

Comparisons of the latest High Resolution Dynamics Limb Sounder (HIRDLS) ozone retrievals (v2.04.09) are made with ozonesondes, ground-based lidars, airborne lidar measurements made during the Intercontinental Chemical Transport Experiment-B, and satellite observations. A large visual obstruction blocking over 80% of the HIRDLS field of view presents significant challenges to the data analysis methods and implementation, to the extent that the radiative properties of the obstruction must be accurately characterized in order to adequately correct measured radiances. The radiance correction algorithms updated as of August 2007 are used in the HIRDLS v2.04.09 data presented here. Comparisons indicate that HIRDLS ozone is recoverable between 1 and 100 hPa at middle and high latitudes and between 1 and 50 hPa at low latitudes. Accuracy of better than 10% is indicated between 1 and 30 hPa (HIRDLS generally low) by the majority of the comparisons with coincident measurements, and 5% is indicated between 2 and 10 hPa when compared with some lidars. Between 50 and 100 hPa, at middle and high latitudes, accuracy is 10-20%. The ozone precision is estimated to be generally 5-10% between 1 and 50 hPa. Comparisons with ozonesondes and lidars give strong indication that HIRDLS is capable of resolving fine vertical ozone features (1-2 km) in the region between 1 and 50 hPa. Development is continuing on the radiance correction and the cloud detection and filtering algorithms, and it is hoped that it will be possible to achieve a further reduction in the systematic bias and an increase in the measurement range downward to lower heights (at pressures greater than 50-100 hPa).

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An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union.
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Author Nardi, Bruno
Gille, John
Barnett, John
Randall, Cora
Lynn Harvey, V.
Waterfall, Alison
Reburn, W.
Leblanc, Thierry
McGee, Tom
Twigg, Laurence
Thompson, Anne
Godin-Beekmann, Sophie
Bernath, Peter
Bojkov, Bojkov
Boone, Chris
Cavanaugh, Charles
Coffey, Michael
Craft, James
Craig, Cheryl
Dean, Vincil
Eden, Thomas
Francis, Gene
Froidevaux, Lucien
Halvorson, Chris
Hannigan, James
Hepplewhite, Christopher
Kinnison, Douglas
Khosravi, Rashid
Krinsky, Charlie
Lambert, Alyn
Lee, Hyunah
Loh, Joanne
Massie, Steven
McDermid, I.
Packman, Daniel
Torpy, Brendan
Valverde-Canossa, Jessica
Walker, Kaley
Whiteman, David
Witte, Jacquelyn
Young, Greg
Publisher UCAR/NCAR - Library
Publication Date 2008-06-10T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Resource Version N/A
Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:42:16.593909
Metadata Record Identifier edu.ucar.opensky::articles:6253
Metadata Language eng; USA
Suggested Citation Nardi, Bruno, Gille, John, Barnett, John, Randall, Cora, Lynn Harvey, V., Waterfall, Alison, Reburn, W., Leblanc, Thierry, McGee, Tom, Twigg, Laurence, Thompson, Anne, Godin-Beekmann, Sophie, Bernath, Peter, Bojkov, Bojkov, Boone, Chris, Cavanaugh, Charles, Coffey, Michael, Craft, James, Craig, Cheryl, Dean, Vincil, Eden, Thomas, Francis, Gene, Froidevaux, Lucien, Halvorson, Chris, Hannigan, James, Hepplewhite, Christopher, Kinnison, Douglas, Khosravi, Rashid, Krinsky, Charlie, Lambert, Alyn, Lee, Hyunah, Loh, Joanne, Massie, Steven, McDermid, I., Packman, Daniel, Torpy, Brendan, Valverde-Canossa, Jessica, Walker, Kaley, Whiteman, David, Witte, Jacquelyn, Young, Greg. (2008). Initial validation of ozone measurements from the High Resolution Dynamics Limb Sounder. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7fq9wsw. Accessed 29 June 2025.

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