Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia)
International audience In the ice‐rich permafrost area of Central Yakutia (Eastern Siberia, Russia), climate warming and other natural and anthropogenic disturbances have caused permafrost degradation and soil subsidence, resulting in the formation of numerous thermokarst (thaw) lakes. These lakes a...
Published in: | Limnology and Oceanography |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Online Access: | https://hal.science/hal-03086290 https://hal.science/hal-03086290/document https://hal.science/hal-03086290/file/LNO11665_proof_FB%20%281%29.pdf https://doi.org/10.1002/lno.11665 |
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Open Polar |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
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language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Hughes-Allen, Lara Bouchard, Frédéric Laurion, Isabelle Séjourné, Antoine Marlin, Christelle Hatté, Christine Costard, F. Fedorov, Alexander Desyatkin, Alexey Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience In the ice‐rich permafrost area of Central Yakutia (Eastern Siberia, Russia), climate warming and other natural and anthropogenic disturbances have caused permafrost degradation and soil subsidence, resulting in the formation of numerous thermokarst (thaw) lakes. These lakes are hotspots of greenhouse gas emissions, but with substantial spatial and temporal heterogeneity across the Arctic. We measured dissolved CO2 and CH4 concentrations in thermokarst lakes of Central Yakutia and their seasonal patterns over a yearly cycle. Lakes formed over the Holocene (alas lakes) are compared to lakes that developed over the last decades. The results show striking differences in dissolved greenhouse gases (up to two orders of magnitude) between lake types and seasons. Shallow lakes located in hydrologically closed alas depressions acted as CO2 sinks and strong sources of diffusive CH4 during some seasons (ebullition was not assessed). Recent thermokarst lakes were moderate to extremely high sources of diffusive CO2 and CH4, with considerable accumulation of greenhouse gas under the ice cover (winter) or in the deepest water layers (summer), highlighting the need to include spring and autumn as critical periods for integrated assessments. The water column was stratified in winter (all lake types) and especially in summer (recent thermokarst lakes), generating anoxia in bottom waters and favoring CH4 production and storage, particularly in the most organic‐rich lakes. The diffusive fluxes measured from thermokarst lakes of this typical taiga alas landscape of Central Yakutia are among the highest presented across Arctic and subarctic regions |
author2 |
Géosciences Paris Saclay (GEOPS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Université Laval Québec (ULaval) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Géochrononologie Traceurs Archéométrie (GEOTRAC) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Melnikov Permafrost Institute Siberian Branch of the Russian Academy of Sciences (SB RAS) ANR-17-MPGA-0014,PEGS,PErmafrost and Greenhouse gas dynamics in Siberia(2017) |
format |
Article in Journal/Newspaper |
author |
Hughes-Allen, Lara Bouchard, Frédéric Laurion, Isabelle Séjourné, Antoine Marlin, Christelle Hatté, Christine Costard, F. Fedorov, Alexander Desyatkin, Alexey |
author_facet |
Hughes-Allen, Lara Bouchard, Frédéric Laurion, Isabelle Séjourné, Antoine Marlin, Christelle Hatté, Christine Costard, F. Fedorov, Alexander Desyatkin, Alexey |
author_sort |
Hughes-Allen, Lara |
title |
Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) |
title_short |
Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) |
title_full |
Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) |
title_fullStr |
Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) |
title_full_unstemmed |
Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) |
title_sort |
seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in central yakutia (eastern siberia) |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03086290 https://hal.science/hal-03086290/document https://hal.science/hal-03086290/file/LNO11665_proof_FB%20%281%29.pdf https://doi.org/10.1002/lno.11665 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Subarctic taiga Thermokarst Yakutia Siberia |
genre_facet |
Arctic Ice permafrost Subarctic taiga Thermokarst Yakutia Siberia |
op_source |
ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.science/hal-03086290 Limnology and Oceanography, 2021, 66 (S1), pp.S98-S116. ⟨10.1002/lno.11665⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/lno.11665 hal-03086290 https://hal.science/hal-03086290 https://hal.science/hal-03086290/document https://hal.science/hal-03086290/file/LNO11665_proof_FB%20%281%29.pdf doi:10.1002/lno.11665 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/lno.11665 |
container_title |
Limnology and Oceanography |
container_volume |
66 |
container_issue |
S1 |
_version_ |
1801372771974905856 |
spelling |
ftceafr:oai:HAL:hal-03086290v1 2024-06-09T07:43:57+00:00 Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) Hughes-Allen, Lara Bouchard, Frédéric Laurion, Isabelle Séjourné, Antoine Marlin, Christelle Hatté, Christine Costard, F. Fedorov, Alexander Desyatkin, Alexey Géosciences Paris Saclay (GEOPS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Université Laval Québec (ULaval) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Géochrononologie Traceurs Archéométrie (GEOTRAC) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Melnikov Permafrost Institute Siberian Branch of the Russian Academy of Sciences (SB RAS) ANR-17-MPGA-0014,PEGS,PErmafrost and Greenhouse gas dynamics in Siberia(2017) 2021 https://hal.science/hal-03086290 https://hal.science/hal-03086290/document https://hal.science/hal-03086290/file/LNO11665_proof_FB%20%281%29.pdf https://doi.org/10.1002/lno.11665 en eng HAL CCSD Association for the Sciences of Limnology and Oceanography info:eu-repo/semantics/altIdentifier/doi/10.1002/lno.11665 hal-03086290 https://hal.science/hal-03086290 https://hal.science/hal-03086290/document https://hal.science/hal-03086290/file/LNO11665_proof_FB%20%281%29.pdf doi:10.1002/lno.11665 info:eu-repo/semantics/OpenAccess ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.science/hal-03086290 Limnology and Oceanography, 2021, 66 (S1), pp.S98-S116. ⟨10.1002/lno.11665⟩ [SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2021 ftceafr https://doi.org/10.1002/lno.11665 2024-05-16T14:40:27Z International audience In the ice‐rich permafrost area of Central Yakutia (Eastern Siberia, Russia), climate warming and other natural and anthropogenic disturbances have caused permafrost degradation and soil subsidence, resulting in the formation of numerous thermokarst (thaw) lakes. These lakes are hotspots of greenhouse gas emissions, but with substantial spatial and temporal heterogeneity across the Arctic. We measured dissolved CO2 and CH4 concentrations in thermokarst lakes of Central Yakutia and their seasonal patterns over a yearly cycle. Lakes formed over the Holocene (alas lakes) are compared to lakes that developed over the last decades. The results show striking differences in dissolved greenhouse gases (up to two orders of magnitude) between lake types and seasons. Shallow lakes located in hydrologically closed alas depressions acted as CO2 sinks and strong sources of diffusive CH4 during some seasons (ebullition was not assessed). Recent thermokarst lakes were moderate to extremely high sources of diffusive CO2 and CH4, with considerable accumulation of greenhouse gas under the ice cover (winter) or in the deepest water layers (summer), highlighting the need to include spring and autumn as critical periods for integrated assessments. The water column was stratified in winter (all lake types) and especially in summer (recent thermokarst lakes), generating anoxia in bottom waters and favoring CH4 production and storage, particularly in the most organic‐rich lakes. The diffusive fluxes measured from thermokarst lakes of this typical taiga alas landscape of Central Yakutia are among the highest presented across Arctic and subarctic regions Article in Journal/Newspaper Arctic Ice permafrost Subarctic taiga Thermokarst Yakutia Siberia HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Arctic Limnology and Oceanography 66 S1 |