دورية أكاديمية
Measuring and inferring the ice thickness distribution of four glaciers in the Tien Shan, Kyrgyzstan
| العنوان: | Measuring and inferring the ice thickness distribution of four glaciers in the Tien Shan, Kyrgyzstan |
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| المؤلفون: | Lander Van Tricht, Philippe Huybrechts, Jonas Van Breedam, Johannes J. Fürst, Oleg Rybak, Rysbek Satylkanov, Bakyt Ermenbaiev, Victor Popovnin, Robbe Neyns, Chloë Marie Paice, Philipp Malz |
| المصدر: | Journal of Glaciology, Vol 67, Pp 269-286 (2021) |
| بيانات النشر: | Cambridge University Press, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Environmental sciences LCC:Meteorology. Climatology |
| مصطلحات موضوعية: | Glacier mapping, glacier volume, ice thickness measurements, mountain glaciers, radio-echo sounding, Environmental sciences, GE1-350, Meteorology. Climatology, QC851-999 |
| الوصف: | Glaciers in the Tien Shan mountains contribute considerably to the fresh water used for irrigation, households and energy supply in the dry lowland areas of Kyrgyzstan and its neighbouring countries. To date, reconstructions of the current ice volume and ice thickness distribution remain scarce, and accurate data are largely lacking at the local scale. Here, we present a detailed ice thickness distribution of Ashu-Tor, Bordu, Golubin and Kara-Batkak glaciers derived from radio-echo sounding measurements and modelling. All the ice thickness measurements are used to calibrate three individual models to estimate the ice thickness in inaccessible areas. A cross-validation between modelled and measured ice thickness for a subset of the data is performed to attribute a weight to every model and to assemble a final composite ice thickness distribution for every glacier. Results reveal the thickest ice on Ashu-Tor glacier with values up to 201 ± 12 m. The ice thickness measurements and distributions are also compared with estimates composed without the use of in situ data. These estimates approach the total ice volume well, but local ice thicknesses vary substantially. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0022-1430 1727-5652 |
| Relation: | https://www.cambridge.org/core/product/identifier/S0022143020001045/type/journal_article; https://doaj.org/toc/0022-1430; https://doaj.org/toc/1727-5652 |
| DOI: | 10.1017/jog.2020.104 |
| URL الوصول: | https://doaj.org/article/0c02f91ebced4ca1833a10355732b087 |
| رقم الأكسشن: | edsdoj.0c02f91ebced4ca1833a10355732b087 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 00221430 17275652 |
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| DOI: | 10.1017/jog.2020.104 |