Results 141 to 150 of about 3,862 (258)

Glacier Melt as a Source of Mercury: Implications for Ecosystem Recovery and Environmental Trends. [PDF]

Environ Sci Technol
Mattio D, Guédron S, Sabatier P, Bertrand Y, Bonfanti N, Campillo S, Dommergue A, Gateuille D, Gautier E, Cortizas AM, Naffrechoux E, Rabatel A, Angot H.   +12 more
europepmc   +1 more source

Structural and Rheological Properties of Chitosan‐Biochar Composites Prepared With Waste Biomass‐Derived Biochar

Polymer Engineering &Science, EarlyView.
Chitosan dispersions containing biochar derived from vine pruning residue showed increasing shear stress and improved thermal stability with loading. Flow behavior was described by the Bingham plastic model in all cases. These results support the valorization of agricultural waste in functional biopolymer formulations.
Ahmet Eser, Mehmet Sadrettin Zeybek, Mertcan Öksüz, Kamil Şirin   +3 more
wiley   +1 more source

Ice-marginal proglacial lakes enhance outlet glacier velocities across Greenland. [PDF]

Commun Earth Environ
Harpur CM, Smith MW, Carrivick JL, Quincey DJ, Taylor L.   +4 more
europepmc   +1 more source

Disposition Model for Permafrost Degradation in Mountainous Regions

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Permafrost is a widespread thermal phenomenon in Arctic and high mountain regions that, in combination with steep terrain, exerts a key control on slope stability. Its degradation in response to climatic warming can modify the likelihood and timing of rockfall, debris flow and related mass movements. Robust information on the current state and
Peter Mani, Simon Allen, Mathias Bavay, Nils Hählen, Markus Stoffel   +4 more
wiley   +1 more source

Rapid ice-marginal lake growth in Alaska driven by glacier retreat through bed overdeepenings. [PDF]

Proc Natl Acad Sci U S A
McGrath D, Sass L, Armstrong WH, Florentine C, McCoy SW.   +4 more
europepmc   +1 more source

Repeated Pleistocene Permafrost Episodes in the Western Pannonian Basin

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Concerning the study of past periglacial processes, the Pannonian Basin is a key area as it contains the southernmost frost polygons found in Central Europe. The presence or absence of permafrost is still, however, a matter of debate, and data on the timing of frost action are also scarce.
Krisztina Sebe, Ágnes Novothny, Gergely Surányi, Barbara Varga, László Fodor, Gábor Csillag   +5 more
wiley   +1 more source

Geochemical characterization of millions of individual atmospheric particles entrapped in Antarctic ice across the last glacial-interglacial transition. [PDF]

Sci Rep
Kutuzov S, Olesik JW, Lomax-Vogt MC, Carter LM, Lowry GV, Bland GD, Wielinski J, Sullivan RC, Gabrielli P.   +8 more
europepmc   +1 more source

Internal Structure, Kinematics, and Prehistory of Frozen Debris Lobe‐A (FDL‐A), Brooks Range, Alaska

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Frozen Debris Lobe‐A (FDL‐A)—one of hundreds of FDLs in the Brooks Range of northern Alaska—is a slow‐moving landslide in permafrost that has been the subject of research since 2008 due to its close proximity to the Dalton Highway. Here, we synthesize more than a decade's worth of climate and surface measurements of monitored FDLs, and the ...
Margaret M. Darrow, Esther L. Babcock, Ben A. Leshchinsky   +2 more
wiley   +1 more source

Remote sensing and process attribution uncertainties in the Dharali event. [PDF]

NPJ Nat Hazards
Bhardwaj A, Sam L, Ali SN, Ahmed R.
europepmc   +1 more source

Quantifying the Surface Deformation of Pingos on the Alaskan North Slope Using Interferometric Synthetic Aperture Radar (InSAR)

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Pingos are large mounds with cores formed of intrusive ice that form in periglacial landscapes. These ice structures can form in regions of discontinuous permafrost, commonly as hydraulic or open‐system pingos, or in locations of continuous permafrost, commonly as hydrostatic or closed‐system pingos.
Venezia M. Follingstad, Roger J. Michaelides, Matthew R. Siegfried, Tyler M. Meng, John Bradford, Kynan H. G. Hughson, Alexia R. Kubas, Andrew Mullen, Enrica Quartini, Austin Routt, Hanna G. Sizemore, Andrei Swidinsky, Britney E. Schmidt   +12 more
wiley   +1 more source