ATMOS 21 - The Status of the FDR4ATMOS Project

Task A: Improving SCIAMACHY Level 1

Goals:

1. Improving Level 1 degradation model and change format to netCDF
2. Provide the users with spectrally resolved full disk lunar irradiances \& reflectances for the time from 2002 - 2012

SCIAMACHY Lunar observations

• SCIAMACHY made regular Moon measurements and covered a large range of observation parameters
• The spectral range (240 - 2384nm) and high resolution of the observations constitute a unique data set
• In 10 years the moon was observed 1123 times
• We validated our results with the GIRO/ROLO model
• We additionally provide the individual measurements and additional parameters to be used in further analysis like lunar phase angle, lunar latitude and longitude etc.

Observation & Validation

Task B: Long time series across different instruments

Goals

• For the first time, create a cross instrument time series for high resolution spectral imagers
• Serve as a pathfinder project to combine data from other instruments to generate decadal time series
• Develop harmonisation procedures that keeps spectral features the trace gas retrieval relies on
• Generate harmonised Level 1 (reflectances and irradiances)
• Provide the user with uncertainties based on metrological principles
• Start with well known instruments GOME-1 and SCIAMACHY spanning the years 1995-2012

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