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Impact of Improved Corrections for MIPAS Detector Non-Linearity

Kiefer, Michael and Aubertin, G. and Birk , Manfred and De Laurentis, Marta and Eckert, Ellen and Kleinert, Anne and Perron, Gaetan and Wagner, Georg (2013) Impact of Improved Corrections for MIPAS Detector Non-Linearity. In: ACVE 2013, Abstract Book, p. 38. ACVE 2013, 13.-15. März 2013, Frascati(Rome), Italy.

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Official URL: http://congrexprojects.com/docs/default-source/acve_docs/abstract-book-acve-for-the-web.pdf?sfvrsn=2


Three of the five MIPAS/Envisat spectral bands are measured by detectors with a non-linear photon flux response. This non-linearity has to be corrected in the interferogram before the transformation to the spectrum is performed. Operational L1b data up to version IPF5 is processed with one fixed set of non-linearity corrections, which have been deduced from an instrument characterisation before mission start. However, the detectors are affected by ageing, i.e. the corrections can be expected to change in time. In the frame of the MIPAS QWG a new set of time dependent non-linearity corrections were deduced from in-flight measurements, and will be used in future versions of the L1b processor. Two test sets of data of eleven orbits each have been processed to L1b using the operational NL-corrections for the first and the new time dependent NL-corrections for the second data set. The impact of the time dependent NL-corrections on L2 data products is discussed. It depends on retrieval target and altitude. For Ozone differences of the new and the operational data are roughly consistent with drifts found in MIPAS O3 data compared to other instruments.

Item URL in elib:https://elib.dlr.de/85298/
Document Type:Conference or Workshop Item (Poster)
Title:Impact of Improved Corrections for MIPAS Detector Non-Linearity
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kiefer, MichaelKIT-IMK, H.-v.-Helmholtz-Platz 1, 76344 Leopoldshafen, GermanyUNSPECIFIED
Aubertin, G.ABB Bomem Inc.UNSPECIFIED
Birk , Manfred manfred.birk (at) dlr.deUNSPECIFIED
De Laurentis, MartaSERCO SpA, Via Sciadonna 24, 00044 Frascati, ItalyUNSPECIFIED
Eckert, EllenKIT-IMK, H.-v.-Helmholtz-Platz 1, 76344 Leopoldshafen, GermanyUNSPECIFIED
Kleinert, AnneKarlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK), 76021 Karlsruhe, GermanyUNSPECIFIED
Wagner, Georggeorg.wagner (at) dlr.deUNSPECIFIED
Date:March 2013
Journal or Publication Title:ACVE 2013, Abstract Book
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 38
Keywords:MIPAS Envisat, Detector non-linearity
Event Title:ACVE 2013
Event Location:Frascati(Rome), Italy
Event Type:international Conference
Event Dates:13.-15. März 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt ENVISAT (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Experimental Methods
Deposited By: Birk, Manfred
Deposited On:18 Nov 2013 08:19
Last Modified:08 May 2014 23:16

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