2025
Accelerated glacier changes on the James Ross Archipelago, Antarctica, from 2010 to 2023
STRINGER, Christopher D.; Mia W. MACFEE; Jonathan L. CARRIVICK; Kamil LÁSKA; Zbynek ENGEL et al.Základní údaje
Originální název
Accelerated glacier changes on the James Ross Archipelago, Antarctica, from 2010 to 2023
Autoři
STRINGER, Christopher D.; Mia W. MACFEE; Jonathan L. CARRIVICK; Kamil LÁSKA; Zbynek ENGEL; Michael MATĚJKA; Connie HARPUR; Daniel NÝVLT; Duncan J. QUINCEY a Bethan J. DAVIES
Vydání
Journal of Glaciology, Cambridge University Press, 2025, 0022-1430
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10508 Physical geography
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.600 v roce 2024
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/25:00144497
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Antarctic glaciology; Glacier surges; Climate change; Melt - surface
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 30. 10. 2025 12:56, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Accelerated glacier mass loss across the Antarctic Peninsula has consequences for sea level rise and local ecology. However, there are few direct glaciological observations available from this region. Here, we reveal glacier changes on the James Ross Archipelago between 2010 and 2023. The median rate of glacier area loss (remote-sensing derived) increased over the study period, with the most significant changes observed in smaller glaciers. In situ measurements show that ablation has prevailed since 2019/20 with the most negative point surface mass balance change measured as -1.39 +/- 0.12 m water equivalent at Davies Dome and Lookalike Glacier in 2022/23 (200-300 m a.s.l.). We identified a tripling of the frontal velocity of Kotick Glacier in 2015, which, combined with terminus surface elevation gains (bulging), suggests that this is the first surge-type glacier identified in Antarctica from velocity and surface elevation change observations. We contend that the glacier recession rate has increased due to increased air temperatures (0.24 +/- 0.08 degrees C yr-1, 2010-23), decreased albedo and glacier elevation change feedbacks. These processes could decrease glacier longevity on the archipelago. Future research should prioritise monitoring albedo and rising equilibrium-line altitudes and identify glaciers most vulnerable to rapid future mass loss.
Návaznosti
| GA20-20240S, projekt VaV |
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