Results 71 to 80 of about 683,227 (203)

Glacial Isostatic Adjustment Shapes Proglacial Lakes Over Glacial Cycles

Geophysical Research Letters, 2022
AbstractAs ice sheets load Earth's surface, they produce ice‐marginal depressions which, when filled with meltwater, become proglacial lakes. We include self‐consistently evolving proglacial lakes in a glacial isostatic adjustment (GIA) model and apply it to the Laurentide ice sheet over the last glacial cycle.
J. Austermann, A. D. Wickert, T. Pico, J. Kingslake, K. L. Callaghan, R. C. Creel   +5 more
openaire   +3 more sources

Latitudinal Heterogeneity in South Asian Monsoon Changes Since the Last Glacial Maximum Revealed by Ganga–Brahmaputra Vegetation Record

Paleoceanography and Paleoclimatology, Volume 41, Issue 11, November 2026.
Abstract Future changes in South Asian climate are expected to amplify flooding and drought, yet the spatial and temporal variability of the South Asian monsoon (SAM) under different climate regimes remains poorly constrained. Here, we present a new marine pollen record from the Bay of Bengal (BoB), informing on the vegetation of the Ganges‐Brahmaputra
C. Zorzi, S. Desprat, V. Galy, C. France‐Lanord, A. Galy   +4 more
wiley   +1 more source

An assessment of the ICE6G_C(VM5a) glacial isostatic adjustment model [PDF]

Journal of Geophysical Research: Solid Earth, 2016
AbstractThe recent release of the next‐generation global ice history model, ICE6G_C(VM5a), is likely to be of interest to a wide range of disciplines including oceanography (sea level studies), space gravity (mass balance studies), glaciology, and, of course, geodynamics (Earth rheology studies).
Purcell, A., Tregoning, P., Dehecq, A.
openaire   +3 more sources

Magnetotelluric Constraints on the Temperature, Composition, Partial Melt Content, and Viscosity of the Upper Mantle Beneath Svalbard

Geochemistry, Geophysics, Geosystems, 2020
Long‐period magnetotelluric (MT) data can be used to interpret upper mantle temperature, hydrogen content, and the presence of partial melt, all of which strongly influence mantle viscosity. We have collected the first long‐period MT data in Svalbard and
Kate Selway, Maxim Yu Smirnov, Thomas Beka, J. P. O'Donnell, Alexander Minakov, Kim Senger, Jan Inge Faleide, Thomas Kalscheuer   +7 more
doaj   +1 more source

Comparing a thermo-mechanical Weichselian Ice Sheet reconstruction to reconstructions based on the sea level equation: aspects of ice configurations and glacial isostatic adjustment [PDF]

Solid Earth, 2014
In this study we compare a recent reconstruction of the Weichselian Ice Sheet as simulated by the University of Maine ice sheet model (UMISM) to two reconstructions commonly used in glacial isostatic adjustment (GIA) modelling: ICE-5G and ANU (Australian
P. Schmidt, B. Lund, J-O. Näslund, J. Fastook   +3 more
doaj   +1 more source

Investigating Postseismic Creep in the Laboratory: Testing Dislocation‐Based Models for Transient Creep in the Upper Mantle

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Studies of postseismic creep often infer a strong reduction in upper‐mantle viscosity after large earthquakes, yet the microphysical mechanism responsible for this behavior remains subject of debate. Here, we present new gas‐medium apparatus experiments at 1100–1200°C on pre‐dried, annealed Åheim dunite (grain size of 400 μ ${\upmu }$m ...
D. Hein, L. N. Hansen, A. Dillman
wiley   +1 more source

Ostracod faunal and geochemical evidence for the impact of Hoxnian (MIS 11c) sea levels in eastern England

Journal of Quaternary Science, Volume 41, Issue 7, Page 1078-1088, October 2026.
ABSTRACT Marine isotope substage 11c (~426–366 ka) is widely regarded as the most recent Pleistocene interglacial that is broadly analogous to the Holocene. The timing and magnitude of sea‐level changes during MIS 11 have been much debated, particularly concerning whether sea levels were significantly higher than during the Holocene. Empirical evidence
Tom S. White, Jonathan A. Holmes, David J. Horne, David R. Bridgland   +3 more
wiley   +1 more source

Ivestigating Glacial Isostatic Adjustement in Scotland with INSAR and GPS observation [PDF]

Proceedings of Fringe 2015: Advances in the Science and Applications of SAR Interferometry and Sentinel-1 InSAR Workshop, 2015
Understanding the effects of glacial isostatic adjustment (GIA) is essential for the assessment of past and future sea-level trends. This study examines the applicability of Small Baseline InSAR to measure GIA-induced vertical land movement in Northern Britain. Different SAR sensors are utilized to cover a time frame of about 20 years.
Julia Stockamp, Zhenhong Li, Paul Bishop, Jim Hansom, Alistair Rennie, Elizabeth Petrie, Akiko Tanaka, Richard Bingley, Dionne Hansen   +8 more
openaire   +1 more source

Estimating Euler pole parameters for eastern Canada using GPS velocities

Geodesy and Cartography, 2015
Eastern Canada is characterized by many intraplate earthquakes mostly concentrated along the Saint Lawrence River and Ottawa River valleys. After the rigid plate rotation of North America, the glacial isostatic adjustment (GIA) is by far the largest ...
Mohammad Ali Goudarzi, Marc Cocard, Rock Santerre   +2 more
doaj   +1 more source

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

Journal of Quaternary Science, Volume 41, Issue 7, Page 1141-1158, October 2026.
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