Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s
The diachronic analysis of aerial and satellite imagery, uncrewed aerial vehicle (UAV) and in situ surveys obtained between 1956 and 2019 are employed to analyse landform surface kinematics for the Tapado site located in the Dry Andes of Chile. A feature tracking procedure was used between series of...
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ftunivbergen:oai:bora.uib.no:11250/2989616 2023-05-15T16:37:51+02:00 Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s Vivero, Sebastián Bodin, Xavier David, Farías Shelley, MacDonell Nicole, Schaffer Robson, Benjamin Aubrey Lambiel, Christophe 2021 application/pdf https://hdl.handle.net/11250/2989616 https://doi.org/10.3389/frsen.2021.784015 eng eng Frontiers Media https://hdl.handle.net/11250/2989616 https://doi.org/10.3389/frsen.2021.784015 cristin:1958984 Frontiers in Remote Sensing. 2021, 2, 784015. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2021 Vivero, Bodin, Farías-Barahona, MacDonell, Schaffer, Robson and Lambiel. 784015 Frontiers in Remote Sensing 2 Journal article Peer reviewed 2021 ftunivbergen https://doi.org/10.3389/frsen.2021.784015 2023-03-14T17:39:48Z The diachronic analysis of aerial and satellite imagery, uncrewed aerial vehicle (UAV) and in situ surveys obtained between 1956 and 2019 are employed to analyse landform surface kinematics for the Tapado site located in the Dry Andes of Chile. A feature tracking procedure was used between series of orthorectified and co-registered images to calculate surface velocities on several ice-debris landforms, including rock glaciers and debris-covered glaciers. For the active rock glaciers, the results exhibit typical viscous flow, though local destabilisation process seems to occur, increased velocities since 2000 (>1 m/yr) and terminus advance. Nevertheless, the debris-covered glaciers displays heterogeneous spatial patterns of surface velocities, together with collapse (downwasting) associated with the development of thermokarst depressions and supraglacial ponds. Our findings show that surface kinematics and multitemporal observations derived from different sensors are valuable tools for differentiating between glacial and periglacial features. The pluri-decadal time series since 1956 constitute a unique dataset for documenting the surface kinematics of creeping mountain permafrost in the Southern Hemisphere. The approach developed in this work offers a way forward to reconstruct the recent behaviour of glacial and periglacial features in the Andes, where archival aerial photographs are available but have not previously been processed rigorously to obtain an accurate assessment of landform kinematics. publishedVersion Article in Journal/Newspaper Ice permafrost Thermokarst University of Bergen: Bergen Open Research Archive (BORA-UiB) Frontiers in Remote Sensing 2 |
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Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
The diachronic analysis of aerial and satellite imagery, uncrewed aerial vehicle (UAV) and in situ surveys obtained between 1956 and 2019 are employed to analyse landform surface kinematics for the Tapado site located in the Dry Andes of Chile. A feature tracking procedure was used between series of orthorectified and co-registered images to calculate surface velocities on several ice-debris landforms, including rock glaciers and debris-covered glaciers. For the active rock glaciers, the results exhibit typical viscous flow, though local destabilisation process seems to occur, increased velocities since 2000 (>1 m/yr) and terminus advance. Nevertheless, the debris-covered glaciers displays heterogeneous spatial patterns of surface velocities, together with collapse (downwasting) associated with the development of thermokarst depressions and supraglacial ponds. Our findings show that surface kinematics and multitemporal observations derived from different sensors are valuable tools for differentiating between glacial and periglacial features. The pluri-decadal time series since 1956 constitute a unique dataset for documenting the surface kinematics of creeping mountain permafrost in the Southern Hemisphere. The approach developed in this work offers a way forward to reconstruct the recent behaviour of glacial and periglacial features in the Andes, where archival aerial photographs are available but have not previously been processed rigorously to obtain an accurate assessment of landform kinematics. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Vivero, Sebastián Bodin, Xavier David, Farías Shelley, MacDonell Nicole, Schaffer Robson, Benjamin Aubrey Lambiel, Christophe |
spellingShingle |
Vivero, Sebastián Bodin, Xavier David, Farías Shelley, MacDonell Nicole, Schaffer Robson, Benjamin Aubrey Lambiel, Christophe Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s |
author_facet |
Vivero, Sebastián Bodin, Xavier David, Farías Shelley, MacDonell Nicole, Schaffer Robson, Benjamin Aubrey Lambiel, Christophe |
author_sort |
Vivero, Sebastián |
title |
Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s |
title_short |
Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s |
title_full |
Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s |
title_fullStr |
Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s |
title_full_unstemmed |
Combination of Aerial, Satellite, and UAV Photogrammetry for Quantifying Rock Glacier Kinematics in the Dry Andes of Chile (30°S) Since the 1950s |
title_sort |
combination of aerial, satellite, and uav photogrammetry for quantifying rock glacier kinematics in the dry andes of chile (30°s) since the 1950s |
publisher |
Frontiers Media |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2989616 https://doi.org/10.3389/frsen.2021.784015 |
genre |
Ice permafrost Thermokarst |
genre_facet |
Ice permafrost Thermokarst |
op_source |
784015 Frontiers in Remote Sensing 2 |
op_relation |
https://hdl.handle.net/11250/2989616 https://doi.org/10.3389/frsen.2021.784015 cristin:1958984 Frontiers in Remote Sensing. 2021, 2, 784015. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2021 Vivero, Bodin, Farías-Barahona, MacDonell, Schaffer, Robson and Lambiel. |
op_doi |
https://doi.org/10.3389/frsen.2021.784015 |
container_title |
Frontiers in Remote Sensing |
container_volume |
2 |
_version_ |
1766028144855220224 |