Articles | Volume 17, issue 19
https://doi.org/10.5194/amt-17-5679-2024
https://doi.org/10.5194/amt-17-5679-2024
Research article
 | 
30 Sep 2024
Research article |  | 30 Sep 2024

Greenhouse gas column observations from a portable spectrometer in Uganda

Neil Humpage, Hartmut Boesch, William Okello, Jia Chen, Florian Dietrich, Mark F. Lunt, Liang Feng, Paul I. Palmer, and Frank Hase

Data sets

TROPOMI Level 2 Methane Total Column products, Version 02 Copernicus Sentinel-5P https://doi.org/10.5270/S5P-3lcdqiv

TROPOMI Level 2 Carbon Monoxide total column products, Version 02 Copernicus Sentinel-5P https://doi.org/10.5270/S5P-bj3nry0

CO2 column concentrations from GEOS-Chem, covering East Africa from January to April 2020 L. Feng and P. Palmer https://doi.org/10.5285/925816bd869644ad9fe9b877d8f42d30

ERA5 hourly data on pressure levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.bd0915c6

Ground-based greenhouse gas column concentrations from Jinja, Uganda, January to April 2020 N. Humpage et al. https://doi.org/10.5285/7a8d0936ba1e4e1a8689c9e9010b43b2

CAMS global reanalysis (EAC4), Copernicus Atmosphere Monitoring Service (CAMS) Atmosphere Data Store (ADS) A. Inness et al. https://ads.atmosphere.copernicus.eu/cdsapp#!/dataset/cams-global-reanalysis-eac4?tab=overview

CH4 column concentrations calculated from a high-res GEOS-Chem model run for Uganda, January to April 2020 M. Lunt and P. Palmer https://doi.org/10.5285/7ecc607cb09747a59da6f46a0635f469

OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V10r OCO-2 Science Team https://doi.org/10.5067/E4E140XDMPO2

OCO-3 Level 2 bias-corrected XCO$_2$ and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing v10.4r OCO-2/OCO-3 Science Team https://doi.org/10.5067/970BCC4DHH24

Download
Short summary
We used a Bruker EM27/SUN spectrometer within an automated weatherproof enclosure to measure greenhouse gas column concentrations over a 3-month period in Jinja, Uganda. The portability of the EM27/SUN allows us to evaluate satellite and model data in locations not covered by traditional validation networks. This is of particular value in tropical Africa, where extensive terrestrial ecosystems are a significant store of carbon and play a key role in the atmospheric budgets of CO2 and CH4.