Results 41 to 50 of about 18,397 (226)

Vertical Structure of Diurnal Englacial Hydrology Cycle at Helheim Glacier, East Greenland

Geophysical Research Letters, 2018
The interior dynamics of Helheim Glacier were monitored using an autonomous phase‐sensitive radio‐echo sounder (ApRES) during two consecutive summers.
Irena Vaňková, Denis Voytenko, Keith W. Nicholls, Surui Xie, Byron R. Parizek, David M. Holland   +5 more
doaj   +1 more source

Toward Improved Understanding of Changes in Greenland Outlet Glacier Shear Margin Dynamics in a Warming Climate

Frontiers in Earth Science, 2018
The Greenland Ice Sheet has experienced accelerated mass loss over the last couple decades, in part due to destabilization of marine-terminating outlet glaciers.
Derrick J. Lampkin, Byron Parizek, Eric Y. Larour, Hélène Seroussi, Casey Joseph, John P. Cavanagh   +5 more
doaj   +1 more source

The Influence of Meltwater on Phytoplankton Blooms Near the Sea‐Ice Edge

Geophysical Research Letters, 2021
Phytoplankton blooms occur annually at the sea‐ice edge throughout the Arctic during the spring melt period. Our study considers how these spring blooms may depend on sea‐ice meltwater, focusing on the role of horizontal mixing and advection.
C. W. Lester, T. J. W. Wagner, Dylan E. McNamara, M. R. Cape   +3 more
doaj   +1 more source

Geochronological reconstruction of the Lateglacial deglaciation in the Arve Valley (Northern French Alps)

Journal of Quaternary Science, EarlyView.
ABSTRACT The timing and spatial patterns of glaciers retreat in the Northern French Alps during the Lateglacial (19.0–11.7 ka) remain debated, reflecting discrepancies among available chronological data sets. The complex interactions between major glaciers, such as the Rhône and Arve glaciers to the north and the Isère glacier to the south, represent a
Quentin Portal, Christian Crouzet, Jean‐François Buoncristiani, Julien Carcaillet   +3 more
wiley   +1 more source

New insights into subglacial meltwater drainage pathways from the ArcticDEM [PDF]

, 2020
Subglacial hydrology has been linked to some of the most dynamic ice sheet behaviour and is likely a key regulator of the impacts of climate change on ice sheet mass balance.
Lewington, Emma La Marre
core   +3 more sources

Meltwater Stonefly( Tumana Lednia)

, 2011
A imagem mostra o inseto raro aquático Stonefly, que vive nas regiões alpinas. A perda de geleiras e neve devido ao aquecimento global está colocando esse inseto raro em risco, de acordo com um estudo da Geological Survey/EUA, que além disso aponta que ...
U.S. Geological Survey
core   +2 more sources

Effects of Low pH and Low Salinity Induced by Meltwater Inflow on the Behavior and Physical Condition of the Antarctic Limpet, Nacella concinna

Journal of Marine Science and Engineering, 2020
Seawater acidification and freshening in the intertidal zone of Marian Cove, Antarctica, which occurs by the freshwater inflow from snow fields and glaciers, could affect the physiology and behavior of intertidal marine organisms.
Eunchong Sin, In-Young Ahn, Seojeong Park, Taewon Kim   +3 more
doaj   +1 more source

Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth‐profile ages

Journal of Quaternary Science, EarlyView.
ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay, Mehmet Akif Sarıkaya, Uroš Stepišnik, Manja Žebre, Cengiz Yıldırım, Attila Çiner, Klaus M. Wilcken   +6 more
wiley   +1 more source

Refinement of the Quaternary seismic stratigraphy and analysis of buried glacial channels on the Labrador Shelf

Journal of Quaternary Science, EarlyView.
ABSTRACT The Laurentide Ice Sheet covered vast areas of North America during the Wisconsinan, including the Labrador Shelf, off the coast of eastern Canada. The shelf is characterized by glacial cross‐shelf troughs, which have been considered as predominantly eroded by the last ice advance.
Kai‐Frederik Lenz, Felix Gross, A. Catalina Gebhardt, Arne Lohrberg, Ralph Schneider, Henriette Kolling, Florian Riefstahl, Orlando Martinez Bautista, Viktoria Thamm, Sebastian Krastel   +9 more
wiley   +1 more source

Glacier speed-up as a possible precursor to volcanic eruptions at Mount Veniaminof, Alaska

Journal of Glaciology
Identifying early indicators of volcanic eruptions is a fundamental part of natural hazard management but is notoriously difficult. Here we consider whether monitoring changes in glacier velocity can help.
Michael Dieter Martin, Iestyn Barr, Benjamin Edwards, Matteo Spagnolo, Elias Symeonakis, Joseph Mallalieu, Kathryn Adamson, Donal Mullan, Maximillian Van Wyk de Vries   +8 more
doaj   +1 more source