NOx emissions in Europe (TROPOMI)

NOx surface emission estimates derived from TROPOMI observations of tropospheric NO2 columns by the DECSO algorithm, version 6.2. These data files are generated within the EU project SEEDS.

Select instrument: 
  satellite data at TEMIS 

Download DECSO v6.3

Monthly NOx emissions for 2019 | 2020 | 2021 | 2022

Data Version and Issues

Information about the data versions can be found here. The emission estimates are still in an experimental phase, and should be used with care.


If you used NOx emission data for a publication (research or otherwise), or for any other purpose, please refer to the following publication:

For DECSO version 6.3 anthropogenic NOx:

  • van der A, R.J., J. Ding, H.J. Eskes, Monitoring European anthropgenic NOx emissions from space, in preparation.

For DECSO version 6.3 soil NOx:

  • Xiaojuan Lin, Ronald J. van der A, Jos de Laat, et al. European soil NOx emissions derived from satellite NO2 observations. ESS Open Archive . December 10, 2023. DOI: 10.22541/essoar.170224578.81570487/v1

For DECSO version 5.2-superobservations:

  • Ding, J., R.J. van der A, H.J. Eskes, B. Mijling, T. Stavrakou, J.H.G.M. van Geffen, J.P. Veefkind, Chinese NOx emission reductions and rebound as a result of the COVID-19 3 crisis quantified through inversion of TROPOMI NO2 observations

For DECSO version 5.1qa:

  • Ding, J., van der A, R. J., Mijling, B., Jalkanen, J.-P., Johansson, L. and Levelt, P. F., Maritime NOx emissions over Chinese seas derived from satellite observations. Geophysical Research Letters, 45., 2018

For older versions:

  • Ding, J., R.J. van der A, B. Mijling and P.F. Levelt, Space-based NOx emission estimates over remote regions improved in DECSO Atmospheric Measurement Techniques, 2017, 10, 925-938, doi:10.5194/amt-10-925-2017.

For validation results:

  • Ding, J., Miyazaki, K., van der A, R.J., Mijling, B., Kurokawa, J., Cho, S., Janssens-Maenhout, G., Zhang, Q., Liu, F., and Levelt, P.F., Intercomparison of NOx emission inventories over East Asia Atm. Chem. Phys., 2017, 17, 10125-10141,


  • Ding, J., R.J. van der A, B. Mijling, P.F. Levelt, and N. Hao (2015). NOx emission estimates during the 2014 Youth Olympic Games in Nanjing. Atmos. Chem. Phys. Discuss., 15, 6337-6372, doi:10.5194/acpd-15-6337-2015. [pdf]
  • Mijling, B., R.J. van der A, R. J., and Q. Zhang (2013). Regional nitrogen oxides emission trends in East Asia observed from space. Atmos. Chem. Phys., 13, 12003-12012, doi:10.5194/acp-13-12003-2013. [pdf]
  • Mijling, B. and R. van der A (2012). Using daily satellite observations to estimate emissions of short-lived air pollutants on a mesoscopic scale. J. Geophys. Res. 117, D17, doi:10.1029/2012JD017817.

Data provider

   Royal Netherlands Meteorological Institute (KNMI)  • contact person: Ronald van der A