Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia
Thermokarst is a typical process that indicates widespread permafrost degradation in yedoma landscapes. The Lena-Aldan interfluvial area in Central Yakutia in eastern Siberia is now facing extensive landscape changes with surface subsidence due to thermokarst development during the past few decades....
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Online Access: | http://dx.doi.org/10.3389/feart.2021.750298 https://www.frontiersin.org/articles/10.3389/feart.2021.750298/full |
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crfrontiers:10.3389/feart.2021.750298 2024-02-11T10:07:52+01:00 Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia Iijima, Yoshihiro Abe, Takahiro Saito, Hitoshi Ulrich, Mathias Fedorov, Alexander N. Basharin, Nikolay I. Gorokhov, Alexey N. Makarov, Victor S. Japan Society for the Promotion of Science Ministry of Education, Culture, Sports, Science and Technology Japan Science and Technology Agency 2021 http://dx.doi.org/10.3389/feart.2021.750298 https://www.frontiersin.org/articles/10.3389/feart.2021.750298/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 9 ISSN 2296-6463 General Earth and Planetary Sciences journal-article 2021 crfrontiers https://doi.org/10.3389/feart.2021.750298 2024-01-26T10:07:20Z Thermokarst is a typical process that indicates widespread permafrost degradation in yedoma landscapes. The Lena-Aldan interfluvial area in Central Yakutia in eastern Siberia is now facing extensive landscape changes with surface subsidence due to thermokarst development during the past few decades. To clarify the spatial extent and rate of subsidence, multiple spatial datasets, including GIS and remote sensing observations, were used to analyze the Churapcha rural locality, which has a typical yedoma landscape in Central Yakutia. Land cover classification maps for 1945 and 2009 provide basic information on anthropogenic disturbance to the natural landscape of boreal forest and dry grassland. Interferometric synthetic aperture radar (InSAR) with ALOS-2/PALSAR-2 data revealed activated surface subsidence of 2 cm/yr in the disturbed area, comprising mainly abandoned agricultural fields. Remote sensing with an unmanned aerial system also provided high-resolution information on polygonal relief formed by thermokarst development at a disused airfield where InSAR analysis exhibited extensive subsidence. It is worth noting that some historically deforested areas have likely recovered to the original landscape without further thermokarst development. Spatial information on historical land-use change is helpful because most areas with thermokarst development correspond to locations where land was used by humans in the past. Going forward, the integrated analysis of geospatial information will be essential for assessing permafrost degradation. Article in Journal/Newspaper permafrost Thermokarst Yakutia Siberia Frontiers (Publisher) Aldan ENVELOPE(129.546,129.546,63.447,63.447) Churapcha ENVELOPE(132.460,132.460,61.986,61.986) Frontiers in Earth Science 9 |
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Open Polar |
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Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Iijima, Yoshihiro Abe, Takahiro Saito, Hitoshi Ulrich, Mathias Fedorov, Alexander N. Basharin, Nikolay I. Gorokhov, Alexey N. Makarov, Victor S. Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia |
topic_facet |
General Earth and Planetary Sciences |
description |
Thermokarst is a typical process that indicates widespread permafrost degradation in yedoma landscapes. The Lena-Aldan interfluvial area in Central Yakutia in eastern Siberia is now facing extensive landscape changes with surface subsidence due to thermokarst development during the past few decades. To clarify the spatial extent and rate of subsidence, multiple spatial datasets, including GIS and remote sensing observations, were used to analyze the Churapcha rural locality, which has a typical yedoma landscape in Central Yakutia. Land cover classification maps for 1945 and 2009 provide basic information on anthropogenic disturbance to the natural landscape of boreal forest and dry grassland. Interferometric synthetic aperture radar (InSAR) with ALOS-2/PALSAR-2 data revealed activated surface subsidence of 2 cm/yr in the disturbed area, comprising mainly abandoned agricultural fields. Remote sensing with an unmanned aerial system also provided high-resolution information on polygonal relief formed by thermokarst development at a disused airfield where InSAR analysis exhibited extensive subsidence. It is worth noting that some historically deforested areas have likely recovered to the original landscape without further thermokarst development. Spatial information on historical land-use change is helpful because most areas with thermokarst development correspond to locations where land was used by humans in the past. Going forward, the integrated analysis of geospatial information will be essential for assessing permafrost degradation. |
author2 |
Japan Society for the Promotion of Science Ministry of Education, Culture, Sports, Science and Technology Japan Science and Technology Agency |
format |
Article in Journal/Newspaper |
author |
Iijima, Yoshihiro Abe, Takahiro Saito, Hitoshi Ulrich, Mathias Fedorov, Alexander N. Basharin, Nikolay I. Gorokhov, Alexey N. Makarov, Victor S. |
author_facet |
Iijima, Yoshihiro Abe, Takahiro Saito, Hitoshi Ulrich, Mathias Fedorov, Alexander N. Basharin, Nikolay I. Gorokhov, Alexey N. Makarov, Victor S. |
author_sort |
Iijima, Yoshihiro |
title |
Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia |
title_short |
Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia |
title_full |
Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia |
title_fullStr |
Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia |
title_full_unstemmed |
Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia |
title_sort |
thermokarst landscape development detected by multiple-geospatial data in churapcha, eastern siberia |
publisher |
Frontiers Media SA |
publishDate |
2021 |
url |
http://dx.doi.org/10.3389/feart.2021.750298 https://www.frontiersin.org/articles/10.3389/feart.2021.750298/full |
long_lat |
ENVELOPE(129.546,129.546,63.447,63.447) ENVELOPE(132.460,132.460,61.986,61.986) |
geographic |
Aldan Churapcha |
geographic_facet |
Aldan Churapcha |
genre |
permafrost Thermokarst Yakutia Siberia |
genre_facet |
permafrost Thermokarst Yakutia Siberia |
op_source |
Frontiers in Earth Science volume 9 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2021.750298 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
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1790606690345811968 |