MIPAS Level 1B algorithms overview: operational processing and characterization
- 1ABB Bomem Inc., 585 Blvd. Charest East, Québec, G1K 9H4, Canada
- 2Forschungszentrum Karlsruhe GmbH, Institut für Meteorologie und Klimaforschung, Postfach 3640, 76021 Karlsruhe, Germany
- 3Remote Sensing Technology Institute, German Aerospace Centre, Muenchner Str. 20, 82234 Wessling, Germany
- 4ESTEC, Kepplerlaan 1, Noordwijk, The Netherlands
Abstract. This paper gives an overview of the MIPAS Level 1B (L1B) processor whose main objective is to calibrate atmospheric measurements radiometrically, spectrally and geo-located. It presents also the results of instrument characterization done on ground and during the first years in-flight. An accurate calibration is mandatory for high quality atmospheric retrievals. MIPAS has shown very good performance and stability. The noise equivalent spectral radiance ranges from 3 to 50 nW/(cm2 sr cm−1) and is well within the requirements over nearly the whole spetral range. The systematic radiometric error is estimated to be within 1 or 2% in most situations.