Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia
Drained Lake Basins (DLBs) are dominant features in lowland permafrost landscapes of the Arctic. Here we present a novel approach describing and quantifying the succession progression of recently drained basins using a landcover unit retrieval scheme developed specifically for the Arctic tundra biom...
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2024
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00072818 2024-05-12T07:59:48+00:00 Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia von Baeckmann, Clemens Bartsch, Annett Bergstedt, Helena Efimova, Aleksandra Widhalm, Barbara Ehrich, Dorothee Kumpula, Timo Sokolov, Alexander Abdulmanova, Svetlana 2024-04 electronic https://doi.org/10.5194/egusphere-2024-699 https://noa.gwlb.de/receive/cop_mods_00072818 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00071013/egusphere-2024-699.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-699/egusphere-2024-699.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2024-699 https://noa.gwlb.de/receive/cop_mods_00072818 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00071013/egusphere-2024-699.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-699/egusphere-2024-699.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2024 ftnonlinearchiv https://doi.org/10.5194/egusphere-2024-699 2024-04-15T23:39:04Z Drained Lake Basins (DLBs) are dominant features in lowland permafrost landscapes of the Arctic. Here we present a novel approach describing and quantifying the succession progression of recently drained basins using a landcover unit retrieval scheme developed specifically for the Arctic tundra biome. The added value compared to commonly used Normalized Difference Vegetation Index (NDVI) trend analyses is demonstrated. Landcover units were linked to DLB ages (years passed since a drainage event occurred). The data were divided into bioclimatic subzones and the landcover units grouped according to their characteristics, first related to vegetation and second to wetness gradients (dry, moist and wet). A regression analyses of NDVI values and fraction of each landcover unit group provided the justification for the utility of the units in our research. The regression results showed the highest correlation with NDVI values for the wetness group ‘Moist’ and the vegetation group ‘Shrub Tundra’ (R2 = 0.458 and R2 = 0.444). There was no correlation (R2 = 0.066) found between NDVI and the fraction of group ‘Wet’ . This highlights the importance of an alternative to NDVI such as the use of landcover units to describe wetland area changes. Finally, our results showed different trajectories in the succession of landcover units in recently DLBs with respect to different bioclimatic subzones. Remaining water in the basin after a lake drainage event was highest for the most southern subzone (median 6.28 %). The open water fraction dropped below one percent for all subzones after five to ten years since drainage. The results of this study contribute to an improved understanding of DLB landcover change in permafrost environments and to a better knowledge base of these unique and critically important landforms. Article in Journal/Newspaper Arctic permafrost Tundra Yamal Peninsula Siberia Niedersächsisches Online-Archiv NOA Arctic Yamal Peninsula ENVELOPE(69.873,69.873,70.816,70.816) |
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Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung von Baeckmann, Clemens Bartsch, Annett Bergstedt, Helena Efimova, Aleksandra Widhalm, Barbara Ehrich, Dorothee Kumpula, Timo Sokolov, Alexander Abdulmanova, Svetlana Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia |
topic_facet |
article Verlagsveröffentlichung |
description |
Drained Lake Basins (DLBs) are dominant features in lowland permafrost landscapes of the Arctic. Here we present a novel approach describing and quantifying the succession progression of recently drained basins using a landcover unit retrieval scheme developed specifically for the Arctic tundra biome. The added value compared to commonly used Normalized Difference Vegetation Index (NDVI) trend analyses is demonstrated. Landcover units were linked to DLB ages (years passed since a drainage event occurred). The data were divided into bioclimatic subzones and the landcover units grouped according to their characteristics, first related to vegetation and second to wetness gradients (dry, moist and wet). A regression analyses of NDVI values and fraction of each landcover unit group provided the justification for the utility of the units in our research. The regression results showed the highest correlation with NDVI values for the wetness group ‘Moist’ and the vegetation group ‘Shrub Tundra’ (R2 = 0.458 and R2 = 0.444). There was no correlation (R2 = 0.066) found between NDVI and the fraction of group ‘Wet’ . This highlights the importance of an alternative to NDVI such as the use of landcover units to describe wetland area changes. Finally, our results showed different trajectories in the succession of landcover units in recently DLBs with respect to different bioclimatic subzones. Remaining water in the basin after a lake drainage event was highest for the most southern subzone (median 6.28 %). The open water fraction dropped below one percent for all subzones after five to ten years since drainage. The results of this study contribute to an improved understanding of DLB landcover change in permafrost environments and to a better knowledge base of these unique and critically important landforms. |
format |
Article in Journal/Newspaper |
author |
von Baeckmann, Clemens Bartsch, Annett Bergstedt, Helena Efimova, Aleksandra Widhalm, Barbara Ehrich, Dorothee Kumpula, Timo Sokolov, Alexander Abdulmanova, Svetlana |
author_facet |
von Baeckmann, Clemens Bartsch, Annett Bergstedt, Helena Efimova, Aleksandra Widhalm, Barbara Ehrich, Dorothee Kumpula, Timo Sokolov, Alexander Abdulmanova, Svetlana |
author_sort |
von Baeckmann, Clemens |
title |
Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia |
title_short |
Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia |
title_full |
Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia |
title_fullStr |
Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia |
title_full_unstemmed |
Landcover succession for recently drained lakes in permafrost on the Yamal peninsula, Western Siberia |
title_sort |
landcover succession for recently drained lakes in permafrost on the yamal peninsula, western siberia |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/egusphere-2024-699 https://noa.gwlb.de/receive/cop_mods_00072818 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00071013/egusphere-2024-699.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-699/egusphere-2024-699.pdf |
long_lat |
ENVELOPE(69.873,69.873,70.816,70.816) |
geographic |
Arctic Yamal Peninsula |
geographic_facet |
Arctic Yamal Peninsula |
genre |
Arctic permafrost Tundra Yamal Peninsula Siberia |
genre_facet |
Arctic permafrost Tundra Yamal Peninsula Siberia |
op_relation |
https://doi.org/10.5194/egusphere-2024-699 https://noa.gwlb.de/receive/cop_mods_00072818 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00071013/egusphere-2024-699.pdf https://egusphere.copernicus.org/preprints/2024/egusphere-2024-699/egusphere-2024-699.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-2024-699 |
_version_ |
1798841427048792064 |