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: | https://doi.org/10.3389/feart.2021.750298 https://doaj.org/article/f6408e8bc2bb4a03996acc6f8d610c3b |
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ftdoajarticles:oai:doaj.org/article:f6408e8bc2bb4a03996acc6f8d610c3b 2023-05-15T17:57:10+02:00 Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia Yoshihiro Iijima Takahiro Abe Hitoshi Saito Mathias Ulrich Alexander N. Fedorov Nikolay I. Basharin Alexey N. Gorokhov Victor S. Makarov 2021-12-01T00:00:00Z https://doi.org/10.3389/feart.2021.750298 https://doaj.org/article/f6408e8bc2bb4a03996acc6f8d610c3b EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/feart.2021.750298/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2021.750298 https://doaj.org/article/f6408e8bc2bb4a03996acc6f8d610c3b Frontiers in Earth Science, Vol 9 (2021) ALOS-2/PALSAR-2 UAS interferometric SAR (InSAR) permafrost degradation subsidence Central Yakutia Science Q article 2021 ftdoajarticles https://doi.org/10.3389/feart.2021.750298 2022-12-31T05:06:03Z 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 Directory of Open Access Journals: DOAJ Articles 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 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ALOS-2/PALSAR-2 UAS interferometric SAR (InSAR) permafrost degradation subsidence Central Yakutia Science Q |
spellingShingle |
ALOS-2/PALSAR-2 UAS interferometric SAR (InSAR) permafrost degradation subsidence Central Yakutia Science Q Yoshihiro Iijima Takahiro Abe Hitoshi Saito Mathias Ulrich Alexander N. Fedorov Nikolay I. Basharin Alexey N. Gorokhov Victor S. Makarov Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia |
topic_facet |
ALOS-2/PALSAR-2 UAS interferometric SAR (InSAR) permafrost degradation subsidence Central Yakutia Science Q |
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. |
format |
Article in Journal/Newspaper |
author |
Yoshihiro Iijima Takahiro Abe Hitoshi Saito Mathias Ulrich Alexander N. Fedorov Nikolay I. Basharin Alexey N. Gorokhov Victor S. Makarov |
author_facet |
Yoshihiro Iijima Takahiro Abe Hitoshi Saito Mathias Ulrich Alexander N. Fedorov Nikolay I. Basharin Alexey N. Gorokhov Victor S. Makarov |
author_sort |
Yoshihiro Iijima |
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 S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/feart.2021.750298 https://doaj.org/article/f6408e8bc2bb4a03996acc6f8d610c3b |
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, Vol 9 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/feart.2021.750298/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2021.750298 https://doaj.org/article/f6408e8bc2bb4a03996acc6f8d610c3b |
op_doi |
https://doi.org/10.3389/feart.2021.750298 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
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1766165551436005376 |