Short-term glacier area changes, glacier geometry dependence, and regional climatic variations forcing, King George Island, Antarctica
| Autor: | JÚLIA L. LORENZ, KÁTIA K. DA ROSA, CARINA PETSCH, CLEIVA PERONDI, FILIPE D. IDALINO, JEFFREY DANIEL AUGER, ROSEMARY VIEIRA, JEFFERSON C. SIMÕES |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Anais da Academia Brasileira de Ciências, Vol 95, Iss suppl 3 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1678-2690 0001-3765 |
| DOI: | 10.1590/0001-3765202320211627 |
| Popis: | Abstract This study investigates the transient snowline (TSL) altitude for summer 2020, as well as glacial area loss in King George Island Icefields since 1988 using Sentinel-1 and 2 and Landsat Thematic Mapper (TM) imagery. Trends and anomalies in atmospheric temperature, U-wind, and V-wind were examined using ERA5 solutions. Results show the wet-snow zone corresponds to values of ≤ -13dB, and 44.3% of the glacial area is located above the TSL (≥ 300 m). Glacial area for 2020 is 999.95 km², and losses in the period represent 104.9 km² (error |
| Databáze: | Directory of Open Access Journals |
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