TCOM-CFC11 and TCOM-CFC12: a gap-free, observationally constrained global dataset of stratospheric CFC-11 and CFC-12 profiles (v2.0)

Dhomse, Sandip S.; Chipperfield, Martyn P.

doi:10.5194/essd-18-6171-2026

Articles | Volume 18, issue 8

https://doi.org/10.5194/essd-18-6171-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-18-6171-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 8

Data description article

|

26 Aug 2026

Data description article |

| 26 Aug 2026

TCOM-CFC11 and TCOM-CFC12: a gap-free, observationally constrained global dataset of stratospheric CFC-11 and CFC-12 profiles (v2.0)

Sandip S. Dhomse and Martyn P. Chipperfield

Supplement

https://doi.org/10.5194/essd-18-6171-2026-supplement

Data sets

TCOM-CFC11 : TOMCAT CTM and Occultation Measurement based CFC-11 profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18145730

TCOM-CFC12 : TOMCAT CTM and Occultation Measurement-based CFC12 profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18147392

TCOM-N2O: TOMCAT CTM and Occultation Measurements based daily zonal nitrous oxide profile dataset Sandip S. Dhomse https://doi.org/10.5281/zenodo.18197444

TCOM-HNO3: TOMCAT CTM and Occultation Mesurement based daily HNO3 profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18199002

TCOM-COF2: TOMCAT CTM and Occultation measurement- based COF2 profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18201786

TCOM-HCl: TOMCAT CTM and Occultation Measurements based HCl profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18184430

TCOM-HF: TOMCAT CTM and Occultation Measurements based HF profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18184779

TCOM-CH4: TOMCAT CTM and Occultation Measurements based daily methane profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18197333

TCOM-O3: TOMCAT CTM and Occultation Measurements based daily ozone profile data set Sandip S. Dhomse https://doi.org/10.5281/zenodo.18199586

TCOM-H2O: TOMCAT CTM and Occultation Measurements based daily zonal stratospheric H2O profile dataset Sandip S. Dhomse https://doi.org/10.5281/zenodo.18199962

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Short summary

We have developed an innovative methodology that uses machine learning to correct errors in chemical models by using satellite data as a guide. In this latest update, we detail improvements to our process for creating a gap-free data of two major ozone-depleting substances: CFC-11 and CFC-12. By combining the strengths of both chemical models and satellites, we have produced a reliable, global dataset that allows researchers to track long-term trends and better evaluate the chemical models.