> Detailanzeige

Iijima, Yoshihiro [Verfasser:in]; Abe, Takahiro [Verfasser:in]; Saito, Hitoshi [Verfasser:in]; Ulrich, Mathias [Verfasser:in]; Fedorov, Alexander N. [Verfasser:in]; Basharin, Nikolay I. [Verfasser:in]; Gorokhov, Alexey N. [Verfasser:in]; Makarov, Victor S. [Verfasser:in]

Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia

Literatur-
verwaltung

Zur
Merkliste

Lösche von
Merkliste

Per Whatsapp teilen

Schließen

Merkliste



Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
  • Medientyp: E-Artikel
  • Titel: Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia
  • Beteiligte: Iijima, Yoshihiro [Verfasser:in]; Abe, Takahiro [Verfasser:in]; Saito, Hitoshi [Verfasser:in]; Ulrich, Mathias [Verfasser:in]; Fedorov, Alexander N. [Verfasser:in]; Basharin, Nikolay I. [Verfasser:in]; Gorokhov, Alexey N. [Verfasser:in]; Makarov, Victor S. [Verfasser:in]
  • Erschienen: Lausanne: Frontiers Research Foundation, [2023]
  • Erschienen in: Frontiers in Earth Science ; 9, (2021)
  • Sprache: Englisch
  • Schlagwörter: permafrost degradation ; UAS ; Central Yakutia ; ALOS-2/PALSAR-2 ; subsidence ; interferometric SAR (InSAR)
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: Thermokarst is a typical process that indicates widespread permafrost degradation inyedoma landscapes. The Lena-Aldan interfluvial area in Central Yakutia in eastern Siberia isnow facing extensive landscape changes with surface subsidence due to thermokarstdevelopment during the past few decades. To clarify the spatial extent and rate ofsubsidence, multiple spatial datasets, including GIS and remote sensing observations,were used to analyze the Churapcha rural locality, which has a typical yedoma landscape inCentral Yakutia. Land cover classification maps for 1945 and 2009 provide basicinformation on anthropogenic disturbance to the natural landscape of boreal forest anddry grassland. Interferometric synthetic aperture radar (InSAR) with ALOS-2/PALSAR-2data revealed activated surface subsidence of 2 cm/yr in the disturbed area, comprisingmainly abandoned agricultural fields. Remote sensing with an unmanned aerial system alsoprovided high-resolution information on polygonal relief formed by thermokarst developmentat a disused airfield where InSAR analysis exhibited extensive subsidence. It is worth notingthat some historically deforested areas have likely recovered to the original landscapewithout further thermokarst development. Spatial information on historical land-use changeis helpful because most areas with thermokarst development correspond to locations whereland was used by humans in the past. Going forward, the integrated analysis of geospatialinformation will be essential for assessing permafrost degradation.
  • Zugangsstatus: Freier Zugang
  • Rechte-/Nutzungshinweise: Namensnennung (CC BY)