The EnMAP spaceborne imaging spectroscopy mission

Initial scientific results two years after launch

verfasst von: Sabine Chabrillat, Saskia Foerster, Karl Segl, Alison Beamish, Maximilian Brell, Saeid Asadzadeh, Robert Milewski, Kathrin J. Ward, Arlena Brosinsky, Katrin Koch, Daniel Scheffler, Stephane Guillaso, Alexander Kokhanovsky, Sigrid Roessner, Luis Guanter, Hermann Kaufmann, Nicole Pinnel, Emiliano Carmona, Tobias Storch, Tobias Hank, Katja Berger, Mathias Wocher, Patrick Hostert, Sebastian van der Linden, Akpona Okujeni, Andreas Janz, Benjamin Jakimow, Astrid Bracher, Mariana A. Soppa, Leonardo M.A. Alvarado, Henning Buddenbaum, Birgit Heim, Uta Heiden, Jose Moreno, Cindy Ong, Niklas Bohn, Robert O. Green, Martin Bachmann, Raymond Kokaly, Martin Schodlok, Thomas H. Painter, Ferran Gascon, Fabrizia Buongiorno, Matti Mottus, Vittorio Ernesto Brando, Hannes Feilhauer, Matthias Betz, Simon Baur, Rupert Feckl, Anke Schickling, Vera Krieger, Michael Bock, Laura La Porta, Sebastian Fischer
Abstract: Imaging spectroscopy has been a recognized and established remote sensing technology since the 1980s, mainly using airborne and field-based platforms to identify and quantify key bio- and geo-chemical surface and atmospheric compounds, based on characteristic spectral reflectance features in the visible-near infrared (VNIR) and short-wave infrared (SWIR). Spaceborne missions, a leap in technology, were sparse, starting with the CHRIS/PROBA and EO1/Hyperion missions in the early 2000s, and providing spectroscopy data with limited spectral coverage and/or low data quality in the SWIR. Since 2019, several countries and agencies have successfully launched a number of spaceborne imaging spectroscopy systems into orbit or deployed them on the International Space Station (ISS) such as DESIS, PRISMA, HISUI, GF-5, EnMAP and EMIT. Among these recent missions, the German Environmental Mapping and Analysis Program (EnMAP) stands for its long-term development, sophisticated design with on-board calibration, high data quality requirements, and extensive accompanying science program. EnMAP was launched in April 2022 and, following a successful commissioning phase, started its operational activities in November 2022. The EnMAP mission encompasses global coverage from 80° N to 80° S through on-demand data acquisitions. Data are free and open access with 30 m spatial resolution, a high spectral resolution with a spectral sampling distance of 6.5 nm and 10 nm in the VNIR and SWIR regions respectively, and a high signal-to-noise ratio. In this paper, we aim to present the mission's current status, coverage, science capabilities and performance two years after launch. We show the potential of EnMAP for space-based imaging spectroscopy to operate in various environments, including high and low light levels, dense forests, Antarctic glaciers, and arid agricultural areas. EnMAP enables various applications in fields such as agriculture and forestry, soil compositional, raw materials, and methane mapping, as well as water quality assessment, and snow and ice properties. The results show that EnMAP's performance exceeds the mission requirements, and highlights the significant potential for contribution to scientific exploitation in various geo- and biochemical sciences. EnMAP is also expected to serve as a key tool for the development and testing of data processing algorithms for upcoming global operational missions.
Organisationseinheit(en): Institut für Bodenkunde
Externe Organisation(en): Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum (GFZ)
Umweltbundesamt (UBA)
Universidad Politecnica de Valencia
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Ludwig-Maximilians-Universität München (LMU)
Universitat de Valencia
Humboldt-Universität zu Berlin (HU Berlin)
Universität Greifswald
Alfred-Wegener-Institut (AWI) Helmholtz-Zentrum für Polar- und Meeresforschung
Universität Bremen
Universität Trier
Commonwealth Scientific and Industrial Research Organisation (CSIRO)
California Institute of Technology (Caltech)
Southwest Biological Science Center (SBSC)
Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Joint Institute for Regional Earth System Science and Engineering (JIFRESSE)
European Space Agency (ESA)
Istituto Nazionale Di Geofisica E Vulcanologia, Rome
VTT Technical Research Centre of Finland Ltd.
Consiglio Nazionale delle Ricerche (CNR)
Universität Leipzig
Helmholtz-Zentrum für Umweltforschung (UFZ)
OHB System AG
Typ: Artikel
Journal: Remote sensing of environment
Band: 315
Anzahl der Seiten: 21
ISSN: 0034-4257
Publikationsdatum: 15.12.2024
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Bodenkunde, Geologie, Computer in den Geowissenschaften
Elektronische Version(en): https://doi.org/10.1016/j.rse.2024.114379 (Zugang: Offen)

BibTeX

@article{ded22427b664446ca8c16a13005a03fb,
title = "The EnMAP spaceborne imaging spectroscopy mission: Initial scientific results two years after launch",
abstract = "Imaging spectroscopy has been a recognized and established remote sensing technology since the 1980s, mainly using airborne and field-based platforms to identify and quantify key bio- and geo-chemical surface and atmospheric compounds, based on characteristic spectral reflectance features in the visible-near infrared (VNIR) and short-wave infrared (SWIR). Spaceborne missions, a leap in technology, were sparse, starting with the CHRIS/PROBA and EO1/Hyperion missions in the early 2000s, and providing spectroscopy data with limited spectral coverage and/or low data quality in the SWIR. Since 2019, several countries and agencies have successfully launched a number of spaceborne imaging spectroscopy systems into orbit or deployed them on the International Space Station (ISS) such as DESIS, PRISMA, HISUI, GF-5, EnMAP and EMIT. Among these recent missions, the German Environmental Mapping and Analysis Program (EnMAP) stands for its long-term development, sophisticated design with on-board calibration, high data quality requirements, and extensive accompanying science program. EnMAP was launched in April 2022 and, following a successful commissioning phase, started its operational activities in November 2022. The EnMAP mission encompasses global coverage from 80° N to 80° S through on-demand data acquisitions. Data are free and open access with 30 m spatial resolution, a high spectral resolution with a spectral sampling distance of 6.5 nm and 10 nm in the VNIR and SWIR regions respectively, and a high signal-to-noise ratio. In this paper, we aim to present the mission's current status, coverage, science capabilities and performance two years after launch. We show the potential of EnMAP for space-based imaging spectroscopy to operate in various environments, including high and low light levels, dense forests, Antarctic glaciers, and arid agricultural areas. EnMAP enables various applications in fields such as agriculture and forestry, soil compositional, raw materials, and methane mapping, as well as water quality assessment, and snow and ice properties. The results show that EnMAP's performance exceeds the mission requirements, and highlights the significant potential for contribution to scientific exploitation in various geo- and biochemical sciences. EnMAP is also expected to serve as a key tool for the development and testing of data processing algorithms for upcoming global operational missions.",
keywords = "Bio-geochemical mapping, EnMAP mission, Science cases, Space-based imaging spectroscopy, Surface and atmosphere, VNIR-SWIR",
author = "Sabine Chabrillat and Saskia Foerster and Karl Segl and Alison Beamish and Maximilian Brell and Saeid Asadzadeh and Robert Milewski and Ward, {Kathrin J.} and Arlena Brosinsky and Katrin Koch and Daniel Scheffler and Stephane Guillaso and Alexander Kokhanovsky and Sigrid Roessner and Luis Guanter and Hermann Kaufmann and Nicole Pinnel and Emiliano Carmona and Tobias Storch and Tobias Hank and Katja Berger and Mathias Wocher and Patrick Hostert and {van der Linden}, Sebastian and Akpona Okujeni and Andreas Janz and Benjamin Jakimow and Astrid Bracher and Soppa, {Mariana A.} and Alvarado, {Leonardo M.A.} and Henning Buddenbaum and Birgit Heim and Uta Heiden and Jose Moreno and Cindy Ong and Niklas Bohn and Green, {Robert O.} and Martin Bachmann and Raymond Kokaly and Martin Schodlok and Painter, {Thomas H.} and Ferran Gascon and Fabrizia Buongiorno and Matti Mottus and Brando, {Vittorio Ernesto} and Hannes Feilhauer and Matthias Betz and Simon Baur and Rupert Feckl and Anke Schickling and Vera Krieger and Michael Bock and {La Porta}, Laura and Sebastian Fischer",
note = "Publisher Copyright: {\textcopyright} 2024",
year = "2024",
month = dec,
day = "15",
doi = "10.1016/j.rse.2024.114379",
language = "English",
volume = "315",
journal = "Remote sensing of environment",
issn = "0034-4257",
publisher = "Elsevier Inc.",
}