Research School for Socio-Economic and
Natural Sciences of the Environment
Research School for Socio-Economic and
Natural Sciences of the Environment

Alba Lorente Delgado

Date: 23 May 2019
Time: 11:00 - 12:30
Location: Aula, building 362, Gen. Foulkesweg 1, Wageningen

Dissertation title: 

From photon paths to pollution plumes: better radiative transfer calculations to monitor NOx emissions with OMI and TROPOMI

Group: Wageningen University, Meteorology and Air Quality
Promotor: Prof.dr. M.C. Krol
Copromotor: Dr. K.F. Boersma

Extra information:


Nitrogen oxides play an important role in atmospheric chemistry, affecting air quality and Earth’s radiative forcing, which impact public health, ecosystems and climate. Remote sensing from satellites results in measurements of tropospheric NO2 column densities with high spatial and temporal resolution. NO2 satellite retrievals have improved extensively in the last decade, together with the increased need of having traceable characterization of the uncertainties associated with the measurements. The resolution of the satellite instruments is improving such that the observed NO2 pollution can be traced back to emissions from individual cities. However, the uncertainty of satellite NO2 retrievals is still considerable and mainly related to the adequacy of the assumptions made on the state of the atmosphere. In this thesis we have improved the critical assumptions and our understanding in the radiative transfer modelling for NO2 satellite measurements, and we use TROPOMI NO2 measurements to quantify daily NOx emissions from Paris.