National Aeronautics and Space Administration

Goddard Space Flight Center

SBUV Merged Ozone Data Set (MOD)

1970-2021 Profile and Total Column Ozone from the SBUV Instrument Series

SBUV (Version 8.7) MERGED TOTAL AND PROFILE OZONE DATA SETS

The SBUV MERGED OZONE DATA SETS are monthly-mean zonal and gridded average products constructed by merging individual SBUV and SBUV/2 (total and profile ozone) satellite data sets. NO external calibration adjustments have been applied. Intercalibration of the SBUV instruments in Version 8.7 is accomplished within the algorithm at the radiance level. Version 8.7 uses the same core algorithm as Version 8.6, but includes new inter-instrument calibration adjustments for instrument records since 2000 (NOAA-16 SBUV/2 though OMPS NP) based on a new approach to radiance intercomparisons across overlapping instruments. Version 8.7 also incorporates an updated a priori with improved tropopsheric represetation and diurnal adjustments to ensure the a priori profile correctly reflects the local solar time of each measurement. A post-retrieval diurnal correction is applied to adjust each instrument record to an equivalent measurement time of 1:30pm. Remaining offsets (mostly sub 5% levels) between instruments exist, but their cause is not understood. We therefore do not make adjustments to the data. Rather we set limitations on the data included in the merged product based on data quality analysis by the instrument team and on comparisons with independent measurements. Details of the instruments/algorithm, data selection and construction of the final data sets are provided by following the links above.

Download the Most Recent Data Set

**Note that the 5° Zonal Mean file is in a new format that includes both profile and total ozone data. The total ozone data in the previous format is available here.
**The overpass files used to construct the Daily Merged Overpass Product are available here.

MOD Data Set Modifications

Periodic updates will be made as new data become available, adding to and possibly changing ozone values at the end of the data set. Changes to existing data may occur as updates to particular data sets become available, and are averaged with the data previously included in the merged data set. These changes are tracked below.

Last Modification: 19 August 2024

v2 Release 2:

• Update to OMPS NP V2.9, extend through December 2023.
• Include Filter for OMPS data impacted by Hunga Tonga Volcano
• Extend Daily Overpass Product using MOD v2 Release 2 data selection.

Previous Modifications

For a complete history of the Merged Ozone Data Sets, please see Modification History.

For more information on data availability for specific instruments, please see Instrument Summary.

Pulications Relevent to Version 8.7 SBUV Data

Ziemke, J. R., Labow, G. J., Kramarova, N. A., McPeters, R. D., Bhartia, P. K., Oman, L. D., Frith, S. M., and Haffner, D. P.: A global ozone profile climatology for satellite retrieval algorithms based on Aura MLS measurements and the MERRA-2 GMI simulation, Atmos. Meas. Tech., 14, 6407-6418, https://doi.org/10.5194/amt-14-6407-2021, 2021.

Frith, S. M., N. A. Kramarova, P. K. Bhartia, R. D. McPeters, G. J. Labow, J. R. Ziemke and D. Haffner (2020), Recent Advances in the SBUV Merged Ozone Dataset (MOD) for LOTUS Phase 2 Analysis of Stratospheric Ozone Trends and Uncertainties, Presented at the LOTUS Phase 2 Workshop (Virtual), May 28 2020.

Frith, S. M., Bhartia, P. K., Oman, L. D., Kramarova, N. A., McPeters, R. D., and Labow, G. J.: Model-based climatology of diurnal variability in stratospheric ozone as a data analysis tool, Atmos. Meas. Tech., 13, 2733-2749, https://doi.org/10.5194/amt-13-2733-2020, 2020.

Pulications Relevent to Version 8.6 SBUV Data

Frith, S. M., N. A. Kramarova, R. S. Stolarski, R. D. McPeters, P. K. Bhartia, and G. J. Labow (2014), Recent changes in total column ozone based on the SBUV Version 8.6 Merged Ozone Data Set, J. Geophys. Res. Atmos., 119, 9735-9751, doi:10.1002/2014JD021889.

Frith, S. M., R. S. Stolarski, R. D. McPeters and N. A. Kramarova (2014), Estimating Uncertainty in Long Term Total Ozone Records from Multiple Sources , 2014 AGU Fall Meeting, Presentation Number A33J-3332, San Francisco, CA, December 15-19.

McPeters, R. D., P. K. Bhartia, D. Haffner, G. J. Labow, and L. Flynn (2013), The version 8.6 SBUV ozone data record: An overview, J. Geophys. Res. Atmos., 118, 8032-8039, doi:10.1002/jgrd.50597.

Bhartia, P. K., McPeters, R. D., Flynn, L. E., Taylor, S., Kramarova, N. A., Frith, S., Fisher, B., and DeLand, M.: Solar Backscatter UV (SBUV) total ozone and profile algorithm, Atmos. Meas. Tech., 6, 2533-2548, doi:10.5194/amt-6-2533-2013, 2013.

DeLand, M. T., Taylor, S. L., Huang, L. K., and Fisher, B. L.: Calibration of the SBUV version 8.6 ozone data product, Atmos. Meas. Tech., 5, 2951-2967, doi:10.5194/amt-5-2951-2012, 2012.

Kramarova, N. A., Frith, S. M., Bhartia, P. K., McPeters, R. D., Taylor, S. L., Fisher, B. L., Labow, G. J., and DeLand, M. T.: Validation of ozone monthly zonal mean profiles obtained from the version 8.6 Solar Backscatter Ultraviolet algorithm, Atmos. Chem. Phys., 13, 6887-6905, doi:10.5194/acp-13-6887-2013, 2013.

Kramarova, N. A., Bhartia, P. K., Frith, S. M., McPeters, R. D., and Stolarski, R. S.: Interpreting SBUV smoothing errors: an example using the quasi-biennial oscillation, Atmos. Meas. Tech., 6, 2089-2099, doi:10.5194/amt-6-2089-2013, 2013.

Labow, G. J., R. D. McPeters, P. K. Bhartia, and N. Kramarova (2013), A comparison of 40 years of SBUV measurements of column ozone with data from the Dobson/Brewer network, J. Geophys. Res. Atmos., 118, 7370-7378, doi:10.1002/jgrd.50503.