edu.ucar.opensky::articles:6253 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T15:20:11.450928 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7fq9wsw Initial validation of ozone measurements from the High Resolution Dynamics Limb Sounder 2008-06-10T00:00:00Z publication https://n2t.org/ark:/85065/d7fq9wsw https://doi.org/10.1029/2007JD008837 Nardi, Bruno author Gille, John author Barnett, J. author Randall, C. author Lynn Harvey, V. author Waterfall, Charlotte O. G. author Reburn, W. author Leblanc, T. author McGee, T. author Twigg, L. author Thompson, A. author Godin-Beekmann, S. author Bernath, P. author Bojkov, B. author Boone, C. author Cavanaugh, Charles P. author Coffey, Michael T. author Craft, J. author Craig, Cheryl A. author Dean, Vincil author Eden, Thomas author Francis, Gene author Froidevaux, L. author Halvorson, Chris M. author Hannigan, James W. author Hepplewhite, C. author Kinnison, Douglas E. author Khosravi, Rashid author Krinsky, C. author Lambert, A. author Lee, Hyunah author Loh, J. author Massie, Steven T. author McDermid, I. author Packman, Daniel author Torpy, B. author Valverde-Canossa, J. author Walker, K. author Whiteman, D. author Witte, J. author Young, G. author UCAR/NCAR - Library publisher 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). UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union. None eng geoscientificInformation