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New Developments for the Operational Data Quality Control within the EnMAP Ground Segment

Bachmann, Martin and Schneider, Mathias and Palubinskas, Gintautas and Habermeyer, Martin and Storch, Tobias (2017) New Developments for the Operational Data Quality Control within the EnMAP Ground Segment. 10th EARSeL SIG Imaging Spectroscopy Workshop, 19.-21. April 2017, Zürich, Schweiz.

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Official URL: http://www.earsel.org/SIG/IS/workshops/10-IS-Workshop/

Abstract

For all Earth Observation missions, and in particular for novel imaging spectrometer missions like EnMAP, it is of high importance to provide well calibrated and validated data products. This is also underpinned by the Quality Assurance Framework for Earth Observation (QA4EO) of the Committee on Earth Observation Satellites (CEOS), which proposes that “Data and derived products shall have associated with them a fully traceable indicator of their quality” Within this presentation, new methodological developments for the operational data quality control are presented which were established within the EnMAP Ground Segment in context of the DeltaCDR completed in Mid 2016. Procedures within the automated processing chain allow for the generation of data quality information for every processed scene. This information is addressing radiometric and geometric scene properties as well as atmospheric properties, and supportsadditionalData Quality Control, Calibration and Instrument Monitoring activities. As an extension to the previous baseline, novel approaches are now included to check for radiometric artefacts in the datasets, as well as indicators for changes in the spectral response as well as spectral smile effects. These extensions, and in particular the automated generation and analysis of the „detector maps“ within the pre-processing chain are presented within this contribution. That is, for every Earth data take the bandwise column means of the uncalibrated L0 raw data, and of the radiometrically calibrated L1B at-sensor radiance are generated and automatically analysed. This workflow and details of this analysis and the procedures for checking the suitability of the scene are shown. In order to demonstrate the suitability and the limitations of the approach, results from the analysis of „real-world“ hyperspectral imagery from the airborne HySpex pushbroom scanner are also presented.

Item URL in elib:https://elib.dlr.de/112042/
Document Type:Conference or Workshop Item (Speech)
Title:New Developments for the Operational Data Quality Control within the EnMAP Ground Segment
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bachmann, Martinmartin.bachmann (at) dlr.deUNSPECIFIED
Schneider, Mathiasmathias.schneider (at) dlr.deUNSPECIFIED
Palubinskas, Gintautasgintautas.palubinskas (at) dlr.deUNSPECIFIED
Habermeyer, Martinmartin.habermeyer (at) dlr.deUNSPECIFIED
Storch, Tobiastobias.storch (at) dlr.deUNSPECIFIED
Date:2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:EnMAP, hyperspectral, Imaging spectroscopy, Data Quality, HySpex
Event Title:10th EARSeL SIG Imaging Spectroscopy Workshop
Event Location:Zürich, Schweiz
Event Type:international Conference
Event Dates:19.-21. April 2017
Organizer:EARSeL
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 Fernerkundung der Landoberfläche (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center
Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Bachmann, Dr.rer.nat. Martin
Deposited On:02 May 2017 15:38
Last Modified:04 May 2017 13:01

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