High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland
Unmanned aerial vehicle (UAV) photogrammetry has become an important tool for generating multi-temporal, high-resolution ortho-images and digital elevation models (DEMs) to study glaciers and their dynamics. In polar regions, the roughness of the terrain, strong katabatic winds, unreliability of com...
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doaj-276798820e444c4cbf62403f04e71b0e2020-11-24T21:59:55ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632019-08-01710.3389/feart.2019.00206472718High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, GreenlandGuillaume Jouvet0Yvo Weidmann1Yvo Weidmann2Eef van Dongen3Martin P. Lüthi4Andreas Vieli5Jonathan C. Ryan6Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, SwitzerlandLaboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, SwitzerlandGeoIdee, Zurich, SwitzerlandLaboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, SwitzerlandDepartment of Geography, University of Zurich, Zurich, SwitzerlandDepartment of Geography, University of Zurich, Zurich, SwitzerlandInstitute at Brown for Environment and Society, Brown University, Providence, RI, United StatesUnmanned aerial vehicle (UAV) photogrammetry has become an important tool for generating multi-temporal, high-resolution ortho-images and digital elevation models (DEMs) to study glaciers and their dynamics. In polar regions, the roughness of the terrain, strong katabatic winds, unreliability of compass readings, and inaccessibility due to lack of infrastructure pose unique challenges for UAV surveying. To overcome these issues, we developed an open-source, low-cost, high-endurance, fixed-wing UAV equipped with GPS post-processed kinematic for the monitoring of ice dynamics and calving activity at several remote tidewater glaciers located in Greenland. Our custom-built UAV is capable of flying for up to 3 h or 180 km and is able to produce high spatial resolution (0.25–0.5 m per pixel), accurately geo-referenced (1–2 pixels) ortho-images and DEMs. We used our UAV to perform repeat surveys of six calving glacier termini in north-west in July 2017 and of Eqip Sermia glacier, west Greenland, in July 2018. The endurance of our UAV enabled us to map the termini of up to four tidewater glaciers in one flight and to infer the displacement and calving activity of Eqip Sermia at short (105 min) timescale. Our study sheds light on the potential of long-range UAVs for continuously monitoring marine-terminating glaciers, enabling short-term processes, such as the tidal effects on the ice dynamics, short-lived speed-up events, and the ice fracturing responsible for calving to be investigated at unprecedented resolution.https://www.frontiersin.org/article/10.3389/feart.2019.00206/fullunmanned aerial vehiclestructure-from-motion photogrammetrycalving glaciersice dynamicsremote sensing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guillaume Jouvet Yvo Weidmann Yvo Weidmann Eef van Dongen Martin P. Lüthi Andreas Vieli Jonathan C. Ryan |
spellingShingle |
Guillaume Jouvet Yvo Weidmann Yvo Weidmann Eef van Dongen Martin P. Lüthi Andreas Vieli Jonathan C. Ryan High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland Frontiers in Earth Science unmanned aerial vehicle structure-from-motion photogrammetry calving glaciers ice dynamics remote sensing |
author_facet |
Guillaume Jouvet Yvo Weidmann Yvo Weidmann Eef van Dongen Martin P. Lüthi Andreas Vieli Jonathan C. Ryan |
author_sort |
Guillaume Jouvet |
title |
High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland |
title_short |
High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland |
title_full |
High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland |
title_fullStr |
High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland |
title_full_unstemmed |
High-Endurance UAV for Monitoring Calving Glaciers: Application to the Inglefield Bredning and Eqip Sermia, Greenland |
title_sort |
high-endurance uav for monitoring calving glaciers: application to the inglefield bredning and eqip sermia, greenland |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Earth Science |
issn |
2296-6463 |
publishDate |
2019-08-01 |
description |
Unmanned aerial vehicle (UAV) photogrammetry has become an important tool for generating multi-temporal, high-resolution ortho-images and digital elevation models (DEMs) to study glaciers and their dynamics. In polar regions, the roughness of the terrain, strong katabatic winds, unreliability of compass readings, and inaccessibility due to lack of infrastructure pose unique challenges for UAV surveying. To overcome these issues, we developed an open-source, low-cost, high-endurance, fixed-wing UAV equipped with GPS post-processed kinematic for the monitoring of ice dynamics and calving activity at several remote tidewater glaciers located in Greenland. Our custom-built UAV is capable of flying for up to 3 h or 180 km and is able to produce high spatial resolution (0.25–0.5 m per pixel), accurately geo-referenced (1–2 pixels) ortho-images and DEMs. We used our UAV to perform repeat surveys of six calving glacier termini in north-west in July 2017 and of Eqip Sermia glacier, west Greenland, in July 2018. The endurance of our UAV enabled us to map the termini of up to four tidewater glaciers in one flight and to infer the displacement and calving activity of Eqip Sermia at short (105 min) timescale. Our study sheds light on the potential of long-range UAVs for continuously monitoring marine-terminating glaciers, enabling short-term processes, such as the tidal effects on the ice dynamics, short-lived speed-up events, and the ice fracturing responsible for calving to be investigated at unprecedented resolution. |
topic |
unmanned aerial vehicle structure-from-motion photogrammetry calving glaciers ice dynamics remote sensing |
url |
https://www.frontiersin.org/article/10.3389/feart.2019.00206/full |
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