AT2

Tropospheric NO2 measured by satellites 10-12 Sept 2007 KNMI, De Bilt, The Netherlands

News
The workshop report is now available for participants.

Tropospheric NO₂ workshop
The workshop on 'Tropospheric NO₂ measured by satellites' took place from 10-12 September 2007 and was hosted by KNMI. The workshop was supported by the EU project ACCENT/Troposat-II. Approximately 50 scientists working on tropospheric NO₂ participated in the workshop.

The objective of the workshop was to assess the quality of tropospheric NO₂ products from the various atmospheric chemistry satellite instruments (GOME, SCIAMACHY, OMI, GOME-2).
More specifically it intended to address and answer the following questions:

• how accurate can tropospheric NO₂ be derived from GOME, SCIAMACHY, OMI, and GOME-2?
• how accurate should the tropospheric NO₂ from satellites be for the use in various applications (air quality monitoring, air quality forecast, long-range transport, cross-boundary fluxes, emission inventories, ...) ?
• what are the error sources in the NO₂ retrievals, and how can they be minimized?
• what methods and measurements can be used for the validation of tropospheric NO₂?
• how can the tropospheric NO₂ data sets from different instruments be combined?

The workshop was open for all scientists working on retrieval and validation of tropospheric NO₂ columns from the different satellites and for scientists using these tropospheric NO₂ products in models and applications.

Programme
The final programme and abstracts are available. The workshop was organised in 4 sessions: validation, retrieval, modelling, and applications, with both invited and solicited talks. A large portion of the time was allocated to discussions.

Organizing committee
Steffen Beirle, MPI Mainz
Dominik Brunner, EMPA
Ankie Piters, KNMI
Andreas Richter, IFE/IUP Bremen
Pepijn Veefkind, KNMI
Jan Wuite, KNMI

This workshop is supported by the EU project ACCENT/Troposat-II