Comparison of GTO-ECV and adjusted MERRA-2 total ozone columns from the last 2 decades and assessment of interannual variability

Coldewey-Egbers, Melanie; Loyola, Diego G.; Labow, Gordon; Frith, Stacey M.

doi:https://doi.org/10.5194/amt-13-1633-2020

Articles | Volume 13, issue 3

https://doi.org/10.5194/amt-13-1633-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-13-1633-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 3

Research article

|

02 Apr 2020

Research article |

| 02 Apr 2020

Comparison of GTO-ECV and adjusted MERRA-2 total ozone columns from the last 2 decades and assessment of interannual variability

Melanie Coldewey-Egbers, Diego G. Loyola, Gordon Labow, and Stacey M. Frith

Data sets

Adjusted MERRA-2 data record NASA MOD https://acd-ext.gsfc.nasa.gov/anonftp/toms/MergedOzoneData/

Climate Research Data Packages (CRDPs) ESA CCI http://cci.esa.int/ozone

Short summary

We compare total ozone columns from the satellite-based GOME-type Total Ozone Essential Climate Variable record and the adjusted Modern Era Retrospective Analysis for Research and Applications version 2 reanalysis during their overlap period from 1995 to 2018. Ozone columns and anomalies show a very good agreement in terms of spatial and temporal patterns. In the tropics the interannual variability is assessed by means of an EOF analysis and both data records show a remarkable consistency.