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New Developments in the SCIAMACHY Level 2 Ground Processor Towards Version 7

Meringer, Markus and Gretschany, Sergei and Lichtenberg, Günter and Theys, N. and Lerot, C. and Liebing, Patricia and Noel, Stefan and Dehn, Angelika and Fehr, Thorsten (2016) New Developments in the SCIAMACHY Level 2 Ground Processor Towards Version 7. In: 41th COSPAR Scientific Assembly 2016. COSPAR 2016, 30. Jul. - 07. Aug. 2016, Istanbul, Türkei.

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Official URL: https://www.cospar-assembly.org/admin/session_cospar.php?session=523

Abstract

SCIAMACHY (SCanning Imaging Absorption spectroMeter for Atmospheric ChartographY) aboard ESA’s environmental satellite ENVISAT observed the Earth’s atmosphere in limb, nadir, and solar/lunar occultation geometries covering the UV-Visible to NIR spectral range. It is a joint project of Germany, the Netherlands and Belgium and was launched in February 2002. SCIAMACHY doubled its originally planned in-orbit lifetime of five years before the communication to ENVISAT was severed in April 2012, and the mission entered its post-operational phase. In order to preserve the best quality of the outstanding data recorded by SCIAMACHY, data processors are still being updated. This presentation will highlight three new developments that are currently being incorporated into the forthcoming Version 7 of ESA’s operational Level 2 processor: 1. Tropospheric BrO, a new retrieval based on the scientific algorithm of (Theys et al., 2011). This algorithm had originally been developed for the GOME-2 sensor and was later adapted for SCIAMACHY. 2. Improved cloud flagging using limb measurements (Liebing, 2015). Limb cloud flags are already part of the SCIAMACHY L2 product. They are currently calculated employing the scientific algorithm developed by (Eichmann et al., 2015). Clouds are categorized into four types: water, ice, polar stratospheric and noctilucent clouds. High atmospheric aerosol loadings, however, often lead to spurious cloud flags, when aerosols had been misidentified as clouds. The new algorithm will better discriminate between aerosol and clouds. It will also have a higher sensitivity w.r.t. thin clouds. 3. A new, future-proof file format for the level 2 product based on NetCDF. The data format will be aligned and harmonized with other missions, particularly GOME and Sentinels. The final concept for the new format is still under discussion within the SCIAMACHY Quality Working Group.

Item URL in elib:https://elib.dlr.de/104349/
Document Type:Conference or Workshop Item (Speech)
Title:New Developments in the SCIAMACHY Level 2 Ground Processor Towards Version 7
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Meringer, MarkusMarkus.Meringer (at) dlr.deUNSPECIFIED
Gretschany, SergeiSergei.Gretschany (at) dlr.dehttps://orcid.org/0000-0002-4851-6300
Lichtenberg, GünterGuenter.Lichtenberg (at) dlr.deUNSPECIFIED
Theys, N.BIRA/IASBUNSPECIFIED
Lerot, C.BIRAUNSPECIFIED
Liebing, PatriciaIUP-IFE, Universität BremenUNSPECIFIED
Noel, StefanIUP-IFE, Universität BremenUNSPECIFIED
Dehn, AngelikaESA/ESRINUNSPECIFIED
Fehr, ThorstenESA/ESTECUNSPECIFIED
Date:2016
Journal or Publication Title:41th COSPAR Scientific Assembly 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:SCIAMACHY, Algorithms, Tropospheric BrO, Cloud Detection, Data Preservation
Event Title:COSPAR 2016
Event Location:Istanbul, Türkei
Event Type:international Conference
Event Dates:30. Jul. - 07. Aug. 2016
Organizer:Committee on Space Research
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 - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen (old), R - Projekt ENVISAT (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Meringer, Dr.rer.nat. Markus
Deposited On:25 May 2016 16:14
Last Modified:31 Jul 2019 20:01

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