Glacial Isostatic Uplift in the Tibetan Plateau and Surroundings
Abstract The Tibetan Plateau and surroundings host the largest number of modern glaciers outside the polar regions. However, the impact of (de)glaciation on present‐day geodetic measurements remains unclear. Using load deformation models, we examine the glacial isostatic uplift in response to (de)gl...
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| Language: | English |
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Wiley
2025-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2025GL114899 |
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| author | Shaozhuo Liu Sigurjón Jónsson |
| author_facet | Shaozhuo Liu Sigurjón Jónsson |
| author_sort | Shaozhuo Liu |
| collection | DOAJ |
| description | Abstract The Tibetan Plateau and surroundings host the largest number of modern glaciers outside the polar regions. However, the impact of (de)glaciation on present‐day geodetic measurements remains unclear. Using load deformation models, we examine the glacial isostatic uplift in response to (de)glaciation during the last glacial period and since the Little Ice Age. We find that the current glacial isostatic uplift locally exceeds 2.0 mm/yr near some glaciers in the Himalayas, Nyainqentanglha, Pamir, and Tien Shan. In the Nyainqentanglha, this glacial isostatic uplift could otherwise be misinterpreted as tectonic uplift associated with fictitious structures near the Jiali fault, a strike‐slip fault slipping at 2–5 mm/yr. In the Himalayas, the glacial isostatic uplift may contribute to 10%–40% of the observed 5–6 mm/yr geodetic uplift. In the Tien Shan, this ratio is 0%–50%. Therefore, glacial isostatic uplift must be considered when interpreting geodetic measurements in the Tibetan Plateau and surroundings. |
| format | Article |
| id | doaj-art-2306bc25230b46dba96a5f6ece8ca31d |
| institution | Matheson Library |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-2306bc25230b46dba96a5f6ece8ca31d2025-07-26T08:35:56ZengWileyGeophysical Research Letters0094-82761944-80072025-07-015213n/an/a10.1029/2025GL114899Glacial Isostatic Uplift in the Tibetan Plateau and SurroundingsShaozhuo Liu0Sigurjón Jónsson1Physical Science and Engineering Division King Abdullah University of Science and Technology Thuwal Saudi ArabiaPhysical Science and Engineering Division King Abdullah University of Science and Technology Thuwal Saudi ArabiaAbstract The Tibetan Plateau and surroundings host the largest number of modern glaciers outside the polar regions. However, the impact of (de)glaciation on present‐day geodetic measurements remains unclear. Using load deformation models, we examine the glacial isostatic uplift in response to (de)glaciation during the last glacial period and since the Little Ice Age. We find that the current glacial isostatic uplift locally exceeds 2.0 mm/yr near some glaciers in the Himalayas, Nyainqentanglha, Pamir, and Tien Shan. In the Nyainqentanglha, this glacial isostatic uplift could otherwise be misinterpreted as tectonic uplift associated with fictitious structures near the Jiali fault, a strike‐slip fault slipping at 2–5 mm/yr. In the Himalayas, the glacial isostatic uplift may contribute to 10%–40% of the observed 5–6 mm/yr geodetic uplift. In the Tien Shan, this ratio is 0%–50%. Therefore, glacial isostatic uplift must be considered when interpreting geodetic measurements in the Tibetan Plateau and surroundings.https://doi.org/10.1029/2025GL114899Tibetan Plateauvertical deformationglacial isostatic upliftgeodetic measurementsclimate change |
| spellingShingle | Shaozhuo Liu Sigurjón Jónsson Glacial Isostatic Uplift in the Tibetan Plateau and Surroundings Geophysical Research Letters Tibetan Plateau vertical deformation glacial isostatic uplift geodetic measurements climate change |
| title | Glacial Isostatic Uplift in the Tibetan Plateau and Surroundings |
| title_full | Glacial Isostatic Uplift in the Tibetan Plateau and Surroundings |
| title_fullStr | Glacial Isostatic Uplift in the Tibetan Plateau and Surroundings |
| title_full_unstemmed | Glacial Isostatic Uplift in the Tibetan Plateau and Surroundings |
| title_short | Glacial Isostatic Uplift in the Tibetan Plateau and Surroundings |
| title_sort | glacial isostatic uplift in the tibetan plateau and surroundings |
| topic | Tibetan Plateau vertical deformation glacial isostatic uplift geodetic measurements climate change |
| url | https://doi.org/10.1029/2025GL114899 |
| work_keys_str_mv | AT shaozhuoliu glacialisostaticupliftinthetibetanplateauandsurroundings AT sigurjonjonsson glacialisostaticupliftinthetibetanplateauandsurroundings |