Tropospheric NO2 data from SCIAMACHY
As part of our ACCENT activities, a preliminary time series of SCIAMACHY tropospheric NO2 columns has been created which can be downloaded as gridded monthly averages. This will be replaced by a new version as soon as more and better calibrated data becomes available.
These files are encrypted, for the password please contact Andreas Richter.
For a description of the method used to derive the NO2 columns, please see:
This is the simplest data analysis, which is using a standard airmass factor independent of location and season. This data set is mainly useful for applications have to avoid interference with a priori assumptions. If you are interested in the best estimate of the tropospheric NO2 column, please use V0.7 of our data product!
This data set differs from Version 0.5 in the use of airmass factors that are based on vertical NO2 profiles predicted by the MOZART model. The airmass factors are based on data from 1997 and are averaged over months. While these airmass factors are identical to those used for the GOME tropospheric NO2 columns V2, the SCIAMACHY tropospheric NO2 columns V0.7/V0.8 still have
Details on the retrieval algorithm a first application can be found in
As there are still large gaps in the raw data provided by ESA, these files are preliminary only and will be replaced as soon as more data with better calibration becomes available. For 2002 and 2003 this has already been done and the results are available as V0.8 data below.
Gridded monthly data
Individual swath files
The same data but as individual ASCII swath files giving the location and value for each measurement pixel is available on request from Andreas Richter.
If you have any questions or requests, please contact Andreas Richter.
web master: email@example.com Last Update: 16-05-13