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ONPD Methane Data Products: Release Notes



Version 4.5.2

  • This data set is part of the Climate Research Data Base # 2 of the ESA GHG-CCI project.
  • Updated algorithm which now uses actualised data bases and further improved error calculation.
  • All SCIAMACHY solar occultation data have been processed (also state 47 data).
  • Although the data products contain values between 0 and 50 km altitude only data between 17 and 45 km should be used.
  • More information is given in the V4.5.2 Algorithm Description.

Version 4.2.1

  • Slightly updated version, essentially identical to V4.1.2 except for the calculation of errors.
  • The algorithm is identical to V4.1.2.

Version 4.1.2

  • This data set is part of the Climate Research Data Base of the ESA GHG-CCI project.
  • The altitude coverage of valid data could be extended.
  • A first CO2 stratospheric product is also available.
  • Although the data products contain values between 0 and 50 km altitude only data between 15 and 45 km should be used.
  • The data are available via the ESA GHG-CCI web site.
  • More information is given in the V4.2.1 Algorithm Description.

Version 3.3.6

  • This is the first release of ONPD stratospheric methane data.
  • Although the data products contain values between 0 and 50 km altitude only data between 20 and 40 km should be used.
  • All data are still preliminary.
  • More information is given in the V3.3.6 Algorithm Description.

Author of this page: Stefan NoŽl
       
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