Version 8.0 SBUV Profile Data on DVD

Introduction This DVD contains a complete time series record of atmospheric ozone profiles from November 1978 to December 2003 derived from satellite Solar Backscattered Ultraviolet (SBUV) measurements (ref). Data from SBUV instruments on the Nimbus-7, NOAA-11, NOAA-16 and NOAA-9 satellites are selected to give the best possible quality so as to compete the time series. Some overlap of instrument measurements is provided. As indicated by the Error Codes and the Residue Quality Control (Residue QC) parameter, overall data quality varies with instrument and time. Parts of Nimbus-7, NOAA-11 and NOAA-16 have the best quality. The NOAA-9 data has no data of best quality but some NOAA-9 data is provided in two separate directories. The noaa9_post93 directory contains data covering the period when there is no NOAA-11 data. The noaa9_pre89 contains data covering the Nimbus-7 out-of-sych period. See Section 2 for guidelines to select the best quality data and some discussion of instrument problems that affect data quality Description of DVD Data In each instrument directory, there are daily files in ASCII format. A sample ASCII file shows the beginning of a daily file with 8 lines of header and subsequent first 3 data records. As briefly described in the header, each data record starts with 11 parameters relative to the profile, then 13 layers of ozone in Dobson Units and finally 15 level of ozone in PPMV units. A detailed description of the certain 11 parameters is at follows. Total_Ozone : The total column ozone from the ground surface Reflectivity : Surface reflectivity from ground and /or clouds. Aeosol_Index : Significant quantities indicates presents of aerosols. Quality_residue : Average of the absolute channel final residues (See Section 2). Error_Flag : (See Section 2). Data & Cover Image Interface pops up a retrieval table to get the V8 SBUV & SBUV/2 data and cover images. 1. V8 Algorithm Description 2. V8 Data Quality (This is in Adobe Acrobat format, and requires the Acrobat Reader software if you do not have it on your system.) 3. V8 Validation Results Acknowledgments The reprocessed SBUV/2 data were made available with support from the NOAA Climate and Global Change Program, Atmospheric Chemistry Element and the NOAA National Environmental Satellite Data and Information Services, Product Systems Development and Implementation Program. Support for SSAI contributors was provided under NASA contract NAS5-00220 and NAS5-01008. Last Updated: 2004-04-13 Web Curator: Changwoo Ahn (SSAI), ahn@chescat.gsfc.nasa.gov Responsible NASA organization/official: Dr. Richard D. McPeters, Atmospheric Chemistry and Dynamics Branch (Code 916 Homepage)