The TROPOMI project: first results focusing on CO and CH4

12 Oct
Atmospheric & Environmental Chemistry Seminar
Prof. Ilse Aben, Netherlands Institute for Space Research
Friday, October 12, 2018 - 12:00pm
Pierce 100F

In 2002 a few partners in the Netherlands (KNMI, SRON, ADSN and TNO) started to discuss potential follow-on instruments after SCIAMACHY and OMI. This ultimately led to the successful launch of TROPOMI on 13 October 2017 on-board the European Sentinel-5 Precursor mission. TROPOMI is an imaging spectrometer developed by the Netherlands and ESA for monitoring the atmospheric composition, for air quality, climate and the ozone layer monitoring. The launch of TROPOMI marks the start of operational atmospheric composition measurements from space within the European Copernicus programme.


TROPOMI is a UV-VIS-NIR-SWIR grating spectrometer measuring various species in the Earth’s atmosphere a.o. NO2, O3, SO2, HCHO, CO and CH4, with unprecedented high spatial resolution of 3.5-7 x 7 km2 at daily global coverage. After a commissioning phase of 6 months, routine operations started end of April 2018. The first set of products were released early July 2018, and more products will follow soon.


SRON’s role during the project was twofold. On one hand SRON was part of the industrial team where we were responsible a.o. for producing the immersed grating critical for the SWIR channel. On the other hand SRON is the co-Principal Investigator institute responsible throughout the project for safeguarding the SWIR scientific performance. As such the focus at SRON from the start has been on the SWIR products CO and CH4.


In this presentation I will give an overview of the project, the status of the mission and show some exciting early results illustrating the new capabilities of TROPOMI. In particular I will focus on some early results regarding CO and CH4.

Daniel Varon
Kelvin Bates