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The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Articles | Volume XLVIII-2/W6-2024
https://doi.org/10.5194/isprs-archives-XLVIII-2-W6-2024-51-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/isprs-archives-XLVIII-2-W6-2024-51-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
17 Dec 2024
| 17 Dec 2024
GRACE gravity analysis exploring climatic influences on mass changes in the Antarctic Peninsula
Abelardo Romero
Laboratorio MAGGIA, Universidad Nacional de La Plata, La Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, CABA, Argentina
Andreas Richter
Laboratorio MAGGIA, Universidad Nacional de La Plata, La Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, CABA, Argentina
Amilcar Juarez
Laboratorio MAGGIA, Universidad Nacional de La Plata, La Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, CABA, Argentina
Federico Suad Corbetta
Laboratorio MAGGIA, Universidad Nacional de La Plata, La Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, CABA, Argentina
Eric Marderwald
Laboratorio MAGGIA, Universidad Nacional de La Plata, La Plata, Argentina
Estación Astronómica Río Grande, Río Grande, Argentina
Pedro Granovsky
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, La Plata, Argentina
Thorben Döhne
Institut für Planetare Geodäsie, Technische Universität Dresden, Dresden, Germany
Martin Horwath
Institut für Planetare Geodäsie, Technische Universität Dresden, Dresden, Germany
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Glacier calving front positions are important for understanding glacier dynamics and constrain ice modelling. We apply a deep learning framework on multispectral Landsat imagery to create a calving front record for 19 key outlet glaciers of the Antarctic Peninsula. The resulting data product includes 2064 calving front locations from 2013 to 2023 and achieves sub-seasonal temporal resolution.
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Harald Moltke Bræ, a marine-terminating glacier in north-western Greenland, undergoes remarkable surges of episodic character. Our data show that a recent surge from 2013 to 2019 was initiated at the glacier front and exhibits a pronounced seasonality with flow velocities varying by 1 order of magnitude, which has not been observed at Harald Moltke Bræ in this way before. These findings are crucial for understanding surge mechanisms at Harald Moltke Bræ and other marine-terminating glaciers.
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Matthias O. Willen, Martin Horwath, Ludwig Schröder, Andreas Groh, Stefan R. M. Ligtenberg, Peter Kuipers Munneke, and Michiel R. van den Broeke
The Cryosphere, 14, 349–366, https://doi.org/10.5194/tc-14-349-2020, https://doi.org/10.5194/tc-14-349-2020, 2020
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The Cryosphere, 13, 427–449, https://doi.org/10.5194/tc-13-427-2019, https://doi.org/10.5194/tc-13-427-2019, 2019
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We developed an approach to combine measurements of seven satellite altimetry missions over the Antarctic Ice Sheet. Our resulting monthly grids of elevation changes between 1978 and 2017 provide unprecedented details of the long-term and interannual variation. Derived mass changes agree well with contemporaneous data of surface mass balance and satellite gravimetry and show which regions were responsible for the significant accelerations of mass loss in recent years.
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