The 2017 catastrophic subsidence in the Dålk Glacier: Unmanned aerial survey and digital terrain analysis

  title={The 2017 catastrophic subsidence in the D{\aa}lk Glacier: Unmanned aerial survey and digital terrain analysis},
  author={Igor V. Florinsky and Dmitrii P. Bliakharskii and Sergei Popov and Sergei Pryakhin},
We present the first results from a study of the 2017 catastrophic subsidence in the Dålk Glacier, East Antarctica using an unmanned aerial system (UAS) and UAS-derived DEMs. The subsided portion of the Dålk Glacier and adjacent territory was surveyed in two flights, before and after the collapse. The survey was performed by Geoscan 201, a small flying-wing UAS. Aerial images have an average resolution of 6 cm. Using Agisoft PhotoScan software, we generated two DEMs with a resolution of 22 cm… 

Figures from this paper


Unmanned Aerial Survey for Modelling Glacier Topography in Antarctica: First Results
The first results from a study of applying unmanned aerial systems (UASs) and UAS-derived data to model glacier topography in contexts of detecting crevasses and monitoring changes in glacier surfaces are presented.
Geomorphometry from unmanned aerial surveys
Unmanned aerial systems (UASs) are widely used for remote sensing, including the production of high‐resolution digital elevation models (DEMs). We study the possibilities of UAS‐based aerial surveys
Sedimentological characterization of Antarctic moraines using UAVs and Structure-from-Motion photogrammetry
In glacial environments particle-size analysis of moraines provides insights into clast origin, transport history, depositional mechanism and processes of reworking. Traditional methods for
Outline of a small unmanned aerial vehicle (Ant-Plane) designed for Antarctic research
Water Flow in Glaciers: Jökulhlaups, Tunnels and Veins
The physics of water flow within and under glacier ice is examined with special reference to the periodic catastrophic outbursts of water (jokulhlaups) from the subglacial lake Grimsvotn,
Effects of bed depressions upon floods from subglacial lakes
Vast ice depression in Dålk Glacier , East Antarctica
Обширная депрессия в леднике Долк, Восточная Антарктида © 2017 г. С.В. Попов1*, С.С. Пряхин2, Д.П. Бляхарский3, Г.В. Пряхина4, С.В. Тюрин4 1Полярная морская геологоразведочная экспедиция,
Bliakharskii, 2018
  • Trans. GIS
  • 2018
215 “ UAVs as remote sensing platform in glaciology : Present applications and 216 future prospects . ”
  • Remote Sens . Envir .
  • 2016