Inverse modelling of carbonyl sulfide: implementation, evaluation and implications for the global budget

Ma, Jin; Kooijmans, Linda M. J.; Cho, Ara; Montzka, Stephen A.; Glatthor, Norbert; Worden, John R.; Kuai, Le; Atlas, Elliot L.; Krol, Maarten C.

doi:https://doi.org/10.5194/acp-21-3507-2021

Articles | Volume 21, issue 5

https://doi.org/10.5194/acp-21-3507-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-3507-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 5

Research article

|

08 Mar 2021

Research article |

| 08 Mar 2021

Inverse modelling of carbonyl sulfide: implementation, evaluation and implications for the global budget

Jin Ma, Linda M. J. Kooijmans, Ara Cho, Stephen A. Montzka, Norbert Glatthor, John R. Worden, Le Kuai, Elliot L. Atlas, and Maarten C. Krol

Supplement

https://doi.org/10.5194/acp-21-3507-2021-supplement

Data sets

Campbell Lab Data Sharing J. E. Campbell https://portal.nersc.gov/project/m2319/

Global Fire Emissions Database GFED https://globalfiredata.org/pages/data/

GML Data NOAA Global Monitoring Laboratory https://www.esrl.noaa.gov/gmd/dv/data/

HIPPO Data HIPPO https://www.eol.ucar.edu/field_projects/hippo

MIPAS Data MIPAS https://earth.esa.int/eogateway/instruments/mipas

ACE-FTS Data ACE-FTS http://www.ace.uwaterloo.ca/data.php

TM5-4DVAR TM5-4DVAR team https://sourceforge.net/projects/tm5/

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Short summary

Carbonyl sulfide is an important trace gas in the atmosphere and useful to estimating gross primary productivity in ecosystems, but its sources and sinks remain highly uncertain. Therefore, we applied inverse model system TM5-4DVAR to better constrain the global budget. Our finding is in line with earlier studies, pointing to missing sources in the tropics and more uptake in high latitudes. We also stress the necessity of more ground-based observations and satellite data assimilation in future.