Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars
International audience The mid-latitudes of Mars host a large amount of buried ice deposits [1], which bear a record on the very Late Amazonian climate evolution (~10 7 to 10 8 yr.) [2] and are a possible resource for future exploration [3]. The reconstruction of the history of these ice reservoirs...
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ftunivangershal:oai:HAL:hal-04290865v1 2024-02-11T10:04:04+01:00 Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars Desjardins, Marine Hauber, Ernst Bucher, Tilman Geßner, Matthias Hiesinger, Harald Schmedemann, Nico Johnsson, Andreas Ellermann, Fabian Sassenroth, Cynthia Brauchle, Jörg Conway, Susan Noblet, Axel Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG) Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST) Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) Granada and online, Spain 2022-09-18 https://hal.science/hal-04290865 https://doi.org/10.5194/epsc2022-1035 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/epsc2022-1035 hal-04290865 https://hal.science/hal-04290865 doi:10.5194/epsc2022-1035 16th Europlanet Science Congress 2022 https://hal.science/hal-04290865 16th Europlanet Science Congress 2022, Sep 2022, Granada and online, Spain. ⟨10.5194/epsc2022-1035⟩ [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/conferenceObject Conference papers 2022 ftunivangershal https://doi.org/10.5194/epsc2022-1035 2024-01-24T17:19:08Z International audience The mid-latitudes of Mars host a large amount of buried ice deposits [1], which bear a record on the very Late Amazonian climate evolution (~10 7 to 10 8 yr.) [2] and are a possible resource for future exploration [3]. The reconstruction of the history of these ice reservoirs and the characterization of their current state is critical to enable putting constraints on the interplay between climate change, volatile migration and landform evolution. Examination of terrestrial analogs can help to identify similarities and – equally important – differences between the response of buried ice on Mars and Earth to changing environmental parameters. Here we report on our long-term investigations of an ice-cored moraine on Svalbard, a proxy for mid-latitude debris-covered glacier on Mars [4]. Our study area is an ice-cored lateral moraine of Kongsvegen glacier on the southern shore of Kongsforden in NW Spitsbergen (Svalbard). This site is subject to rapid degradation by melting and redistribution of surficial sediment, e.g., by thaw slumps and debris flows [5]. We couple multi-year fieldwork with repeat remote-sensing observations. Fieldwork includes DGPS-supported monitoring of surface changes by several imaging methods comparisons to environmental data (e.g., [6]). In 2008, a flight campaign with HRSC-AX (an airborne version of DLR’s High Resolution Stereo Camera on Mars Express) provided orthoimages (20 cm/px) and a Digital Elevation Model (DEM; 50 cm ground sampling distance, GSD) [7]. In 2020 a repeat campaign with DLR’s MACS (Modular Airborne Camera System) achieved ground pixel sizes between 5 cm and 10 cm for RGB images, and 10 cm to 15 cm for NIR images. The associated DEM has the same resolution [8]. MACS also acquires TIR data,which we use to identify regions with anomalous temperatures (e.g., exposed ice). We use for detailed mapping of ice-rich viscous flow features on Mars [9]. This study focuses on the Nereidum Montes area in the northern part of the Argyre basin. Image analysis, ... Conference Object glacier Svalbard Spitsbergen Portail des publications scientifiques de l’Université d’Angers (HAL) Kongsvegen ENVELOPE(12.657,12.657,78.854,78.854) Svalbard |
institution |
Open Polar |
collection |
Portail des publications scientifiques de l’Université d’Angers (HAL) |
op_collection_id |
ftunivangershal |
language |
English |
topic |
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Desjardins, Marine Hauber, Ernst Bucher, Tilman Geßner, Matthias Hiesinger, Harald Schmedemann, Nico Johnsson, Andreas Ellermann, Fabian Sassenroth, Cynthia Brauchle, Jörg Conway, Susan Noblet, Axel Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars |
topic_facet |
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience The mid-latitudes of Mars host a large amount of buried ice deposits [1], which bear a record on the very Late Amazonian climate evolution (~10 7 to 10 8 yr.) [2] and are a possible resource for future exploration [3]. The reconstruction of the history of these ice reservoirs and the characterization of their current state is critical to enable putting constraints on the interplay between climate change, volatile migration and landform evolution. Examination of terrestrial analogs can help to identify similarities and – equally important – differences between the response of buried ice on Mars and Earth to changing environmental parameters. Here we report on our long-term investigations of an ice-cored moraine on Svalbard, a proxy for mid-latitude debris-covered glacier on Mars [4]. Our study area is an ice-cored lateral moraine of Kongsvegen glacier on the southern shore of Kongsforden in NW Spitsbergen (Svalbard). This site is subject to rapid degradation by melting and redistribution of surficial sediment, e.g., by thaw slumps and debris flows [5]. We couple multi-year fieldwork with repeat remote-sensing observations. Fieldwork includes DGPS-supported monitoring of surface changes by several imaging methods comparisons to environmental data (e.g., [6]). In 2008, a flight campaign with HRSC-AX (an airborne version of DLR’s High Resolution Stereo Camera on Mars Express) provided orthoimages (20 cm/px) and a Digital Elevation Model (DEM; 50 cm ground sampling distance, GSD) [7]. In 2020 a repeat campaign with DLR’s MACS (Modular Airborne Camera System) achieved ground pixel sizes between 5 cm and 10 cm for RGB images, and 10 cm to 15 cm for NIR images. The associated DEM has the same resolution [8]. MACS also acquires TIR data,which we use to identify regions with anomalous temperatures (e.g., exposed ice). We use for detailed mapping of ice-rich viscous flow features on Mars [9]. This study focuses on the Nereidum Montes area in the northern part of the Argyre basin. Image analysis, ... |
author2 |
Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG) Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST) Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) |
format |
Conference Object |
author |
Desjardins, Marine Hauber, Ernst Bucher, Tilman Geßner, Matthias Hiesinger, Harald Schmedemann, Nico Johnsson, Andreas Ellermann, Fabian Sassenroth, Cynthia Brauchle, Jörg Conway, Susan Noblet, Axel |
author_facet |
Desjardins, Marine Hauber, Ernst Bucher, Tilman Geßner, Matthias Hiesinger, Harald Schmedemann, Nico Johnsson, Andreas Ellermann, Fabian Sassenroth, Cynthia Brauchle, Jörg Conway, Susan Noblet, Axel |
author_sort |
Desjardins, Marine |
title |
Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars |
title_short |
Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars |
title_full |
Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars |
title_fullStr |
Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars |
title_full_unstemmed |
Degradation processes on ice-cored moraines on Svalbard: a terrestrial analog for Mars |
title_sort |
degradation processes on ice-cored moraines on svalbard: a terrestrial analog for mars |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-04290865 https://doi.org/10.5194/epsc2022-1035 |
op_coverage |
Granada and online, Spain |
long_lat |
ENVELOPE(12.657,12.657,78.854,78.854) |
geographic |
Kongsvegen Svalbard |
geographic_facet |
Kongsvegen Svalbard |
genre |
glacier Svalbard Spitsbergen |
genre_facet |
glacier Svalbard Spitsbergen |
op_source |
16th Europlanet Science Congress 2022 https://hal.science/hal-04290865 16th Europlanet Science Congress 2022, Sep 2022, Granada and online, Spain. ⟨10.5194/epsc2022-1035⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/epsc2022-1035 hal-04290865 https://hal.science/hal-04290865 doi:10.5194/epsc2022-1035 |
op_doi |
https://doi.org/10.5194/epsc2022-1035 |
_version_ |
1790600516590370816 |