Articles | Volume 17, issue 3
https://doi.org/10.5194/tc-17-1299-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-1299-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Brief communication
| 
21 Mar 2023
Brief communication |
| 21 Mar 2023
| 21 Mar 2023
Brief communication: Glacier mapping and change estimation using very high-resolution declassified Hexagon KH-9 panoramic stereo imagery (1971–1984)
Sajid Ghuffar
CORRESPONDING AUTHOR
School of Geography and Sustainable Development, University of St Andrews, St Andrews, UK
Department of Space Science, Institute of Space Technology, Islamabad, Pakistan
Owen King
School of Geography and Sustainable Development, University of St Andrews, St Andrews, UK
Grégoire Guillet
School of Geography and Sustainable Development, University of St Andrews, St Andrews, UK
LASTIG, Univ Gustave Eiffel, ENSG, IGN, Saint-Mande, France
Ewelina Rupnik
Civil and Environmental Engineering, University of Washington, Seattle, WA, USA
School of Geography and Sustainable Development, University of St Andrews, St Andrews, UK
Institute of Geodesy, Graz University of Technology, Graz, Austria
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L. Landrieu, E. Rupnik, S. Oude Elberink, C. Mallet, and N. Paparoditis
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L. Landrieu, E. Rupnik, S. Oude Elberink, C. Mallet, and N. Paparoditis
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L. Landrieu, E. Rupnik, S. Oude Elberink, C. Mallet, and N. Paparoditis
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-1-2022, 1–5, https://doi.org/10.5194/isprs-annals-V-1-2022-1-2022, https://doi.org/10.5194/isprs-annals-V-1-2022-1-2022, 2022
L. Landrieu, E. Rupnik, S. Oude Elberink, C. Mallet, and N. Paparoditis
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-2-2022, 1–5, https://doi.org/10.5194/isprs-annals-V-2-2022-1-2022, https://doi.org/10.5194/isprs-annals-V-2-2022-1-2022, 2022
L. Landrieu, E. Rupnik, S. Oude Elberink, C. Mallet, and N. Paparoditis
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-3-2022, 1–5, https://doi.org/10.5194/isprs-annals-V-3-2022-1-2022, https://doi.org/10.5194/isprs-annals-V-3-2022-1-2022, 2022
Benjamin Aubrey Robson, Shelley MacDonell, Álvaro Ayala, Tobias Bolch, Pål Ringkjøb Nielsen, and Sebastián Vivero
The Cryosphere, 16, 647–665, https://doi.org/10.5194/tc-16-647-2022, https://doi.org/10.5194/tc-16-647-2022, 2022
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This work uses satellite and aerial data to study glaciers and rock glacier changes in La Laguna catchment within the semi-arid Andes of Chile, where ice melt is an important factor in river flow. The results show the rate of ice loss of Tapado Glacier has been increasing since the 1950s, which possibly relates to a dryer, warmer climate over the previous decades. Several rock glaciers show high surface velocities and elevation changes between 2012 and 2020, indicating they may be ice-rich.
Gregoire Guillet, Owen King, Mingyang Lv, Sajid Ghuffar, Douglas Benn, Duncan Quincey, and Tobias Bolch
The Cryosphere, 16, 603–623, https://doi.org/10.5194/tc-16-603-2022, https://doi.org/10.5194/tc-16-603-2022, 2022
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Surging glaciers show cyclical changes in flow behavior – between slow and fast flow – and can have drastic impacts on settlements in their vicinity.
One of the clusters of surging glaciers worldwide is High Mountain Asia (HMA).
We present an inventory of surging glaciers in HMA, identified from satellite imagery. We show that the number of surging glaciers was underestimated and that they represent 20 % of the area covered by glaciers in HMA, before discussing new physics for glacier surges.
Jan Bouke Pronk, Tobias Bolch, Owen King, Bert Wouters, and Douglas I. Benn
The Cryosphere, 15, 5577–5599, https://doi.org/10.5194/tc-15-5577-2021, https://doi.org/10.5194/tc-15-5577-2021, 2021
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About 10 % of Himalayan glaciers flow directly into lakes. This study finds, using satellite imagery, that such glaciers show higher flow velocities than glaciers without ice–lake contact. In particular near the glacier tongue the impact of a lake on the glacier flow can be dramatic. The development of current and new meltwater bodies will influence the flow of an increasing number of Himalayan glaciers in the future, a scenario not currently considered in regional ice loss projections.
E. Maset, E. Rupnik, M. Pierrot-Deseilligny, F. Remondino, and A. Fusiello
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B2-2021, 33–38, https://doi.org/10.5194/isprs-archives-XLIII-B2-2021-33-2021, https://doi.org/10.5194/isprs-archives-XLIII-B2-2021-33-2021, 2021
T. Wu, B. Vallet, M. Pierrot-Deseilligny, and E. Rupnik
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B2-2021, 405–412, https://doi.org/10.5194/isprs-archives-XLIII-B2-2021-405-2021, https://doi.org/10.5194/isprs-archives-XLIII-B2-2021-405-2021, 2021
Andreas Kääb, Tazio Strozzi, Tobias Bolch, Rafael Caduff, Håkon Trefall, Markus Stoffel, and Alexander Kokarev
The Cryosphere, 15, 927–949, https://doi.org/10.5194/tc-15-927-2021, https://doi.org/10.5194/tc-15-927-2021, 2021
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We present a map of rock glacier motion over parts of the northern Tien Shan and time series of surface speed for six of them over almost 70 years.
This is by far the most detailed investigation of this kind available for central Asia.
We detect a 2- to 4-fold increase in rock glacier motion between the 1950s and present, which we attribute to atmospheric warming.
Relative to the shrinking glaciers in the region, this implies increased importance of periglacial sediment transport.
Franz Goerlich, Tobias Bolch, and Frank Paul
Earth Syst. Sci. Data, 12, 3161–3176, https://doi.org/10.5194/essd-12-3161-2020, https://doi.org/10.5194/essd-12-3161-2020, 2020
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This work indicates all glaciers in the Pamir that surged between 1988 and 2018 as revealed by different remote sensing data, mainly Landsat imagery. We found ~ 200 surging glaciers for the entire mountain range and detected the minimum and maximum extents of most of them. The smallest surging glacier is ~ 0.3 km2. This inventory is important for further research on the surging behaviour of glaciers and has to be considered when processing glacier changes (mass, area) of the region.
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Short summary
The panoramic cameras (PCs) on board Hexagon KH-9 satellite missions from 1971–1984 captured very high-resolution stereo imagery with up to 60 cm spatial resolution. This study explores the potential of this imagery for glacier mapping and change estimation. The high resolution of KH-9PC leads to higher-quality DEMs which better resolve the accumulation region of glaciers in comparison to the KH-9 mapping camera, and KH-9PC imagery can be useful in several Earth observation applications.
The panoramic cameras (PCs) on board Hexagon KH-9 satellite missions from 1971–1984 captured...
