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Status of the Imaging Spectroscopy Mission EnMAP with Radiometric Calibration and Correction

Storch, Tobias and Honold, Hans-Peter and Alonso, Kevin and Pato, Miguel and Mücke, Martin and Basili, Patrizia and Chabrillat, Sabine and Fischer, Sebastian (2020) Status of the Imaging Spectroscopy Mission EnMAP with Radiometric Calibration and Correction. In: ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, V-1, pp. 41-47. ISPRS 2020, 2020-08-31 - 2020-09-02, Frankreich, Nizza, online. doi: 10.5194/isprs-annals-V-1-2020-41-2020. ISSN 2194-9042.

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Official URL: https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/V-1-2020/41/2020/

Abstract

The high-resolution imaging spectroscopy remote sensing mission EnMAP (Environmental Mapping and Analysis Program, enmap.org) covers the spectral range from 420 nm to 2450 nm with a spectral sampling distance varying between 4.8 nm and 12.0 nm comprising 262 spectral bands. We focus on the planned framework concerning radiometry. The expected signal-to-noise ratio at reference radiance level is 500:1 at 495 nm and 150:1 at 2200 nm. The radiometric resolution is 14 bits and an absolute radiometric accuracy of better than 5% is achieved. Radiometric calibration is based on Sun calibration measurements with a full-aperture diffusor for absolute calibration. In addition, relative calibration monitors the instrument during the complete mission lifetime based on an integrating sphere (on the satellite). The fully-automatic on-ground image processing chain considers the derived radiometric calibration coefficients in the radiometric correction which is followed by the orthorectification and atmospheric compensation. Each of the two 2-dimensional detector arrays of the prism-based pushbroom dual-spectrometer works in a dual-gain configuration to cover the complete dynamic range. EnMAP will acquire 30 km in the across-track direction with a ground sampling distance of 30 m and the across-track tilt capability of 30° will enable a target revisit time of less than 4 days. The launch is scheduled for 2021. The high-quality products will be freely available to international scientific users for measuring and analysing diagnostic parameters which describe vital processes on the Earth’s surface.

Item URL in elib:https://elib.dlr.de/135718/
Document Type:Conference or Workshop Item (Speech)
Title:Status of the Imaging Spectroscopy Mission EnMAP with Radiometric Calibration and Correction
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Storch, TobiasUNSPECIFIEDhttps://orcid.org/0000-0001-8853-8996UNSPECIFIED
Honold, Hans-PeterOHB System AGUNSPECIFIEDUNSPECIFIED
Alonso, KevinUNSPECIFIEDhttps://orcid.org/0000-0003-2469-8290UNSPECIFIED
Pato, MiguelUNSPECIFIEDhttps://orcid.org/0000-0003-0111-0861UNSPECIFIED
Mücke, MartinOHB System AGUNSPECIFIEDUNSPECIFIED
Basili, PatriziaOHB System AGUNSPECIFIEDUNSPECIFIED
Chabrillat, SabineGFZ PotsdamUNSPECIFIEDUNSPECIFIED
Fischer, SebastianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:August 2020
Journal or Publication Title:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:V-1
DOI:10.5194/isprs-annals-V-1-2020-41-2020
Page Range:pp. 41-47
ISSN:2194-9042
Status:Published
Keywords:Imaging Spectroscopy, EnMAP, Remote Sensing Satellite, Radiometric Calibration, Radiometric Correction
Event Title:ISPRS 2020
Event Location:Frankreich, Nizza, online
Event Type:international Conference
Event Start Date:31 August 2020
Event End Date:2 September 2020
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren (old)
Location: Bonn-Oberkassel , Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Space Administration
Deposited By: Storch, Dr.rer.nat. Tobias
Deposited On:18 Aug 2020 08:34
Last Modified:24 Apr 2024 20:38

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