SRON Scientific GOSAT-2 Level 2 Data Products for XCO2 and XCH4

Anthropogenic emissions of greenhouse gases such as carbon dioxide and methane over the last century have led to the rapid rise of concentrations of these gases in the Earth's atmosphere, leading to continually increasing surface temperature. The ramifications of a warming climate are serious, with significant negative implications projected well into the future. Consequently, concentrations (or column-averaged dry air mole fractions) of CO2 and CH4, denoted XCO2 and XCH4 respectively, have been classed as Essential Climate Variables.

 

The EU's Copernicus Climate Change Service (C3S) supports climate adaptation and mitigation policies regarding the impact of climate change by offering free and open access to climate data and tools. Within this context conentrations of greenhouse gases are made available by the European Union in an operational manner from a suite of different satellites. The Japanese Aerospace Exploration Agency (JAXA) satellite GOSAT-2 was launched in 2018 with the aim of measuring XCO2 and XCH4 (along with carbon monoxide, nitrous oxide and water vapour). It is the successor to GOSAT (The Greenhouse Gases Observing Satellite), the first satellite dedicated to the observation of greenhouse gases, launched in 2009.

 

Here we provide conentrations of CO2 and CH4 in the form of level 2 data products retrieved from L1b radiance spectra from GOSAT-2, as part of project C3S2_313a. XCO2 and XCH4 are retrieved with the RemoTeC algorithm to compose the SRON GOSAT-2 scientific products. Three products are availabe, two for XCH4 and one for XCO2, and all are contained in this repository. Please see the README for more information on the prodcuts themselves. The user may choose which data to download. One zip file is available per year of data per product. 

 

For citation, users are requested to make reference to the DOI of the specific product version available at this repository, in case of any publication resulting from the use of these data.

 

C3S is a programme of the European Union being funded by the European Union (EU) and implemented by the European Centre for MediumRange Weather Forecasts (ECMWF). This document was produced with funding by the European Union. Views and opinions expressed are those of the author(s) only and the European Commission and ECMWF cannot be held responsible for any use which may be made of the information contained therein.