Results 11 to 20 of about 7,208 (230)

Bayesian Approach to Estimate Proglacial Lake Volume (BE‐GLAV)

Earth and Space Science
We present a new model called Bayesian Estimated Glacial Lake Volume (BE‐GLAV) to estimate the volume of proglacial lakes. Presuming the lake cross‐section as trapezoidal, BE‐GLAV uses a Bayesian calibration approach to adjust the cross‐sectional ...
Prateek Gantayat, Ashim Sattar, Umesh K. Haritashya, C. Scott Watson, Jeffrey S. Kargel   +4 more
doaj   +3 more sources

Ice‐Marginal Proglacial Lakes Across Greenland: Present Status and a Possible Future [PDF]

Geophysical Research Letters, 2022
Ice‐marginal lakes can affect glacier dynamics but are ignored in studies of the evolution of the Greenland ice sheet (GrIS) and of peripheral mountain glaciers and ice caps (PGICs).
Jonathan L. Carrivick, Penelope How, James M. Lea, Jenna L. Sutherland, Michael Grimes, Fiona S. Tweed, Stephen Cornford, Duncan J. Quincey, Joseph Mallalieu   +8 more
doaj   +6 more sources

Diversity, Function and Activity of DNA Viruses in the Qiangyong Proglacial Lake Sediment, the Tibetan Plateau. [PDF]

Environ Microbiol Rep
This study identified DNA viruses from Qiangyong proglacial lake sediments on the Tibetan Plateau, revealing a highly diverse and previously uncharacterized viral community. These viruses influence microbial community structure and function by infecting key nutrient‐transforming taxa and encoding auxiliary metabolic genes that modulate host metabolism.
Zhao Y, Feng M, Chi H, Liu K, Wen R, Zhang W, Liu P.   +6 more
europepmc   +2 more sources

Evaluation of lacustrine groundwater discharge, hydrologic partitioning, and nutrient budgets in a proglacial lake in the Qinghai–Tibet Plateau: using ²²²Rn and stable isotopes [PDF]

Hydrology and Earth System Sciences, 2018
Proglacial lakes are good natural laboratories to investigate groundwater and glacier dynamics under current climate conditions and to explore biogeochemical cycling under pristine lake status. This study conducted a series of investigations of 222Rn,
X. Luo, X. Luo, X. Luo, X. Kuang, J. J. Jiao, J. J. Jiao, J. J. Jiao, S. Liang, R. Mao, R. Mao, R. Mao, X. Zhang, X. Zhang, X. Zhang, H. Li   +14 more
doaj   +1 more source

Terminus change of Kaskawulsh Glacier, Yukon, under a warming climate: retreat, thinning, slowdown and modified proglacial lake geometry

Journal of Glaciology, 2023
Links between proglacial lakes and glacier dynamics are poorly understood but are necessary to predict how mountain glaciers will react to a warmer, wetter climate, where such lakes are expected to increase both in number and volume.
Brittany Main, Luke Copland, Braden Smeda, Will Kochtitzky, Sergey Samsonov, Jonathan Dudley, Mark Skidmore, Christine Dow, Wesley Van Wychen, Dorota Medrzycka, Eric Higgs, Laurent Mingo   +11 more
doaj   +1 more source

Deglaciation and proglacial lakes [PDF]

Geology Today, 2015
Glaciers and ice sheets are important constituents of the Earth's land surface. Current worldwide retreat of glaciers has implications for the environment and for civilisation. There are a range of geomorphic changes occurring in cold environments and it is anticipated that these will be accentuated as a consequence of climate change.
TWEED, Fiona, Carrivick, Jonathan L.
openaire   +2 more sources

Deglacial ice sheet instabilities induced by proglacial lakes [PDF]

Geophysical Research Letters, 2020
AbstractDuring the last deglaciation (21–7 kaBP), the gradual retreat of Northern Hemisphere ice sheet margins produced large proglacial lakes. While the climatic impacts of these lakes have been widely acknowledged, their role on ice sheet grounding line dynamics has received very little attention so far.
Quiquet, Aurélien, Dumas, Christophe, Paillard, Didier, Ramstein, Gilles, Ritz, Catherine, Roche, Didier M.   +5 more
openaire   +4 more sources

Gulf of Alaska ice-marginal lake area change over the Landsat record and potential physical controls [PDF]

The Cryosphere, 2021
Lakes in contact with glacier margins can impact glacier evolution as well as the downstream biophysical systems, flood hazard, and water resources. Recent work suggests positive feedbacks between glacier wastage and ice-marginal lake evolution, although
H. R. Field, H. R. Field, W. H. Armstrong, M. Huss, M. Huss, M. Huss   +5 more
doaj   +1 more source

Buoyant calving and ice-contact lake evolution at Pasterze Glacier (Austria) in the period 1998–2019 [PDF]

The Cryosphere, 2021
Rapid growth of proglacial lakes in the current warming climate can pose significant outburst flood hazards, increase rates of ice mass loss, and alter the dynamic state of glaciers. We studied the nature and rate of proglacial lake evolution at Pasterze
A. Kellerer-Pirklbauer, M. Avian, D. I. Benn, F. Bernsteiner, P. Krisch, C. Ziesler   +5 more
doaj   +1 more source

Warm Arctic Proglacial Lakes in the ASTER Surface Temperature Product [PDF]

Remote Sensing, 2021
Despite an increase in heatwaves and rising air temperatures in the Arctic, little research has been conducted into the temperatures of proglacial lakes in the region. An assumption persists that they are cold and uniformly feature a temperature of 1 °C. This is important to test, given the rising air temperatures in the region (reported in this study)
Adrian Dye, Robert Bryant, Emma Dodd, Francesca Falcini, David M. Rippin   +4 more
openaire   +4 more sources