Articles | Volume 22, issue 12
Research article
17 Jun 2022
Research article |  | 17 Jun 2022

Net ecosystem exchange (NEE) estimates 2006–2019 over Europe from a pre-operational ensemble-inversion system

Saqr Munassar, Christian Rödenbeck, Frank-Thomas Koch, Kai U. Totsche, Michał Gałkowski, Sophia Walther, and Christoph Gerbig

Data sets

ICOS Atmospheric Greenhouse Gas Mole Fractions of CO2 for the period Sep 2015- May 2020, final quality controlled Level 2 data for 23 stations (62 vertical levels), pre-release 2020-1 ICOS RI

SPEI Global Drought Monitor S. Beguería, B. Latorre, F. Reig, and S. Vicente-Serrano

Short summary
The results obtained from ensembles of inversions over 13 years show the largest spread in the a posteriori fluxes over the station set ensemble. Using different prior fluxes in the inversions led to a smaller impact. Drought occurrences in 2018 and 2019 affected CO2 fluxes as seen in net ecosystem exchange estimates. Our study highlights the importance of expanding the atmospheric site network across Europe to better constrain CO2 fluxes in inverse modelling.
Final-revised paper