1.210 hasil
Menampilkan 1–20 · 0,17 detik · RSS
Journal of Glaciology
Scopus
ISSN 0022-1430 · Cambridge University Press · 1.210 artikel di indeks
-
Artikel Jurnal Teks lengkap
Detection of glacier calving events from time-lapse images using computer vision and a neural network
Ground-based time-lapse cameras are often used to monitor glacier recession, which is primarily driven by the falling of ice from the glacier front, known as iceberg calving or, more commonly, calving events. Glaciologists can utilise these images by manually identifying calving events, a laborious…
Juga tersedia di: DOAJ
-
Artikel Jurnal
Glacial lake outburst flood susceptibility and potential downstream implications across the Kashmir Himalaya
Glacial lakes in the Kashmir Himalaya have remained understudied despite their destructive potential for outburst floods. This study presents a comprehensive, manually delineated glacial lake inventory of 155 glacial lakes and a baseline for glacial lake outburst flood (GLOF) hazard across the…
-
Artikel Jurnal
Lidar-based snow monitoring from aerial lifts: Gondola deployment in the Austrian Alps
Monitoring snow distribution in alpine terrain is critical for hydrology, avalanche safety, and climate research, yet traditional surveys are costly, hazardous, and spatially sparse. We assess a gondola-mounted, low-cost Light Detection and Ranging (lidar) system (MOLISENS) for repeated snow…
-
Artikel Jurnal
Surface mass balance of the Northern Patagonian Ice Field and links with climate variability modes and atmospheric variables
Patagonia Icefields are large ice masses with a significant contribution to sea level rise among mountain glaciers in the Southern Hemisphere. In order to improve the estimation of the Northern Patagonia Icefield (NPI) surface mass balance and to better understand its relationship with climate…
-
Artikel Jurnal
Unprecedented mass loss of Aldegondabreen, central Spitsbergen, Svalbard
We have been conducting mass-balance monitoring on Aldegondabreen since the early 21st century. Over the most recent five year period (2019/20–2023/24), the glacier has experienced its most negative mass balance, averaging −2.0 m w.e. a−1. This dramatic loss is linked to rising air temperatures…
-
Artikel Jurnal
Experimental study on the unconfined apparent shear strength of compacted snow
To address the scarcity of data on compacted snow shear damage under complex conditions, unconfined shear tests were conducted in Northeast China. This study examined apparent shear strength variations with density (300–550 kg·m−3), temperature (−17.4°C to 0°C) and strain rate (1.3 × 10−5–3.8 ×…
-
Artikel Jurnal
Evaluating CMIP6 models for near-surface air temperature projections over Antarctic ice shelves
The meltwater-driven disintegration of the Larsen B ice shelf has raised concerns that other ice shelves may face similar vulnerabilities as global temperatures rise. Climate projections show increased ice shelf vulnerability to surface melt in the coming century, yet the ability of large-scale…
-
Artikel Jurnal
Updating Norway’s glacial lake extents in 2023–2024 using Sentinel-1 & Sentinel-2 data and machine learning
Glacial lakes are increasing in number and size worldwide, posing growing risks for outburst floods. Norway’s last glacial lake inventory used semi-automatic mapping on Sentinel-2 imagery from 2018–19. In this study, we test a more automated and reproducible workflow for updating glacial lake…
-
Artikel Jurnal
Retreat, lowering and persistent supraglacial streams at the Barnes Ice Cap, Baffin Island, Canada
Significant and widespread surface melt is prevalent across glaciers and ice caps, and such surface melt is transmitted through complex supraglacial pathways. The efficiency with which this water transits across glaciers and ice caps is important since it is by these networks that water is removed…
-
Artikel Jurnal
Estimating effective elasticity in grounding zones of the Ross Ice Shelf with tidal flexure from ICESat-2
The grounding zones of Antarctic ice shelves are among the continent’s most dynamic regions, where floating ice shelves buttress grounded upstream ice and tidal forcing drives cyclic flexure at the ice–ocean–bed interface. We use ICESat-2 altimetry and airborne ice-penetrating radar to constrain…
-
Artikel Jurnal
How velocity extraction from Sentinel-2A/B affects the accuracy and availability of surface strain rate and stress: a case study of Helheim Glacier
Strain rate and stress are widely regarded as crucial indicators for quantifying glacier dynamics on sub-monthly scales. However, existing frameworks for quality assessment of both strain rate and stress in fast-moving glaciers remain insufficient, hindering the application of rheological analysis…
-
Artikel Jurnal
Assessing future ice shelf hydrofracture vulnerability in the ISMIP6 ensemble
Understanding the possibility of future ice shelf collapses similar to that of the Larsen B is critical for improving sea-level-rise projections due to the restraint on upstream flow that ice shelves provide. Prior research has provided a criterion for assessing the vulnerability of ice shelves to…
-
Artikel Jurnal
Performance of the Instructed Glacier Model v2.2.1 in inferring observed ice thickness and dynamics
Accurate knowledge of glacier bed geometry and flow parameters is essential for glaciological modeling and can be inferred from surface data and theoretical principles. This study evaluates the performance of the Instructed Glacier Model (IGM) v2.2.1 in estimating glacier ice thickness using the…
-
Artikel Jurnal
Ice-core-dated englacial stratigraphy across Wilkes Subglacial Basin, East Antarctica: Implications for ice-sheet behaviour
Wilkes Subglacial Basin (WSB) stores enough ice to raise global sea levels by three to four metres, and comprises a region of East Antarctica potentially vulnerable to climate-induced ice loss. We investigate WSB’s glacial history back to just after the Last Interglacial (tilde $\sim$~130–115 ka)…
-
Artikel Jurnal
Tracing the biogeochemical transformation of dissolved organic matter along a glacier–lake–stream continuum on the Tibetan Plateau
Mountain glaciers are melting at an accelerated rate due to global warming, thereby significantly altering proglacial and downstream hydrology. However, the biogeochemical transformation of dissolved organic matter (DOM) along the glacier-lake-stream continuum remains unclear. We investigated DOM…
-
Artikel Jurnal
Seasonal evolution of supraglacial lakes and cascaded drainage events in Northeast Greenland Ice Sheet during 2019–2020
Supraglacial lakes on Northeast Greenland Ice Stream glaciers (79N and Zachariæ Isstrøm) store and route meltwater to the bed, yet controls on their evolution and cascading drainage remain poorly understood. We mapped the lakes across contrasting 2019 (warm) and 2020 (normal) melt seasons using…
Menampilkan maksimal 50 halaman. Persempit pencarian dengan filter untuk hasil yang lebih spesifik.