Overcoming data scarcity of active layer thicknesses using geophysics
International audience The thermal imprint of a typical river in the continuous permafrost of Central Yakutia (Siberia, Russia) is studied by active layer thickness measurements along six cross sections, either directly or with geophysical methods. Ground-Penetrating Radar (GPR) and Electrical Resis...
Main Authors: | , , , , , , , , |
---|---|
Other Authors: | , , , , , , , |
Format: | Conference Object |
Language: | English |
Published: |
HAL CCSD
2018
|
Subjects: | |
Online Access: | https://hal.science/hal-04455462 https://hal.science/hal-04455462/document https://hal.science/hal-04455462/file/Saintenoy-EUCOP2018-abstract.pdf |
id |
ftsorbonneuniv:oai:HAL:hal-04455462v1 |
---|---|
record_format |
openpolar |
spelling |
ftsorbonneuniv:oai:HAL:hal-04455462v1 2024-09-15T17:34:54+00:00 Overcoming data scarcity of active layer thicknesses using geophysics Saintenoy, Albane Pohl, Eric Grenier, Christophe Séjourné, Antoine Khristoforov, Ivan Konstantinov, Pavel Danilov, Kencheeri Bazhin, Kirill Fedorov, Alexander Géosciences Paris Sud (GEOPS) Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Melnikov Permafrost Institut Russian Academy of Sciences Moscow (RAS) Chamonix, France 2018-06-23 https://hal.science/hal-04455462 https://hal.science/hal-04455462/document https://hal.science/hal-04455462/file/Saintenoy-EUCOP2018-abstract.pdf en eng HAL CCSD hal-04455462 https://hal.science/hal-04455462 https://hal.science/hal-04455462/document https://hal.science/hal-04455462/file/Saintenoy-EUCOP2018-abstract.pdf info:eu-repo/semantics/OpenAccess 5th European Conference on Permafrost - EUCOP5, Book of Abstracts EUCOP 5 - 5th European Conference on Permafrost https://hal.science/hal-04455462 EUCOP 5 - 5th European Conference on Permafrost, Jun 2018, Chamonix, France. pp.900 https://hal.science/hal-01816115/ Ground-Penetrating Radar Electrical Resistivity Tomography Active Layer River Influence [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/conferenceObject Conference papers 2018 ftsorbonneuniv 2024-08-01T23:46:50Z International audience The thermal imprint of a typical river in the continuous permafrost of Central Yakutia (Siberia, Russia) is studied by active layer thickness measurements along six cross sections, either directly or with geophysical methods. Ground-Penetrating Radar (GPR) and Electrical Resistivity Tomography (ERT) measurements provide permafrost depths comparable to direct measurements acquired in boreholes and pits when available. Geophysical data interpretations complement non-instrumented cross-sections and show that the unfrozen/frozen interface is deeper below the riverbed for all studied cross sections and depends on the local river width. GPR data provide depths of 1 to 2 m with a sampling step as small as 5 cm when the riverbed width is less than 8 m. Where riverbeds are wider, ERT data are more adapted than GPR in imaging the unfrozen layer. ERT data indicates a permafrost boundary as deep as 6 m for the wide river cases, compared to less than 2 m for the narrower ones. The geophysical data enabled us to reveal an exceptional spatial variability in active layer depths that could not be attributed with in situ measurements before. Conference Object Active layer thickness permafrost Yakutia Siberia HAL Sorbonne Université |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
Ground-Penetrating Radar Electrical Resistivity Tomography Active Layer River Influence [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
spellingShingle |
Ground-Penetrating Radar Electrical Resistivity Tomography Active Layer River Influence [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] Saintenoy, Albane Pohl, Eric Grenier, Christophe Séjourné, Antoine Khristoforov, Ivan Konstantinov, Pavel Danilov, Kencheeri Bazhin, Kirill Fedorov, Alexander Overcoming data scarcity of active layer thicknesses using geophysics |
topic_facet |
Ground-Penetrating Radar Electrical Resistivity Tomography Active Layer River Influence [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
description |
International audience The thermal imprint of a typical river in the continuous permafrost of Central Yakutia (Siberia, Russia) is studied by active layer thickness measurements along six cross sections, either directly or with geophysical methods. Ground-Penetrating Radar (GPR) and Electrical Resistivity Tomography (ERT) measurements provide permafrost depths comparable to direct measurements acquired in boreholes and pits when available. Geophysical data interpretations complement non-instrumented cross-sections and show that the unfrozen/frozen interface is deeper below the riverbed for all studied cross sections and depends on the local river width. GPR data provide depths of 1 to 2 m with a sampling step as small as 5 cm when the riverbed width is less than 8 m. Where riverbeds are wider, ERT data are more adapted than GPR in imaging the unfrozen layer. ERT data indicates a permafrost boundary as deep as 6 m for the wide river cases, compared to less than 2 m for the narrower ones. The geophysical data enabled us to reveal an exceptional spatial variability in active layer depths that could not be attributed with in situ measurements before. |
author2 |
Géosciences Paris Sud (GEOPS) Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Melnikov Permafrost Institut Russian Academy of Sciences Moscow (RAS) |
format |
Conference Object |
author |
Saintenoy, Albane Pohl, Eric Grenier, Christophe Séjourné, Antoine Khristoforov, Ivan Konstantinov, Pavel Danilov, Kencheeri Bazhin, Kirill Fedorov, Alexander |
author_facet |
Saintenoy, Albane Pohl, Eric Grenier, Christophe Séjourné, Antoine Khristoforov, Ivan Konstantinov, Pavel Danilov, Kencheeri Bazhin, Kirill Fedorov, Alexander |
author_sort |
Saintenoy, Albane |
title |
Overcoming data scarcity of active layer thicknesses using geophysics |
title_short |
Overcoming data scarcity of active layer thicknesses using geophysics |
title_full |
Overcoming data scarcity of active layer thicknesses using geophysics |
title_fullStr |
Overcoming data scarcity of active layer thicknesses using geophysics |
title_full_unstemmed |
Overcoming data scarcity of active layer thicknesses using geophysics |
title_sort |
overcoming data scarcity of active layer thicknesses using geophysics |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-04455462 https://hal.science/hal-04455462/document https://hal.science/hal-04455462/file/Saintenoy-EUCOP2018-abstract.pdf |
op_coverage |
Chamonix, France |
genre |
Active layer thickness permafrost Yakutia Siberia |
genre_facet |
Active layer thickness permafrost Yakutia Siberia |
op_source |
5th European Conference on Permafrost - EUCOP5, Book of Abstracts EUCOP 5 - 5th European Conference on Permafrost https://hal.science/hal-04455462 EUCOP 5 - 5th European Conference on Permafrost, Jun 2018, Chamonix, France. pp.900 https://hal.science/hal-01816115/ |
op_relation |
hal-04455462 https://hal.science/hal-04455462 https://hal.science/hal-04455462/document https://hal.science/hal-04455462/file/Saintenoy-EUCOP2018-abstract.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1810432500179140608 |