Nitrogen dioxide plays an important role in both troposphere and stratosphere. It is involved in catalytic ozone destruction and at the same time in the “buffering” of ozone destroying halogen oxides into more stable reservoir substances. In the troposphere, NO2 is one of the key players in the formation of photochemical smog during pollution episodes. Locally, it may also contribute to radiative forcing.
If you are interested in more information or SCIAMACHY NO2 data from the IUP Bremen, please contact Andreas Richter.