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Deglacial temperature history of West Antarctica [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2016 Significance The magnitude and timing of Antarctic temperature change through the last deglaciation reveal key aspects of Earth’s climate system. Prior attempts to reconstruct this history relied on isotopic indicators without absolute calibration.
Jeffrey Severinghaus +2 more
exaly +8 more sources
Seasonal temperatures in West Antarctica during the Holocene. [PDF]
Nature, 2023 Abstract The recovery of long-term climate proxy records with seasonal resolution is rare because of natural smoothing processes, discontinuities and limitations in measurement resolution. Yet insolation forcing, a primary driver of multimillennial-scale climate change, acts through seasonal variations with direct
Jones TR +16 more
europepmc +5 more sources
Potential seaways across West Antarctica [PDF]
Geochemistry, Geophysics, Geosystems, 2011 The West Antarctic ice sheet (WAIS) has long been considered vulnerable to rapid retreat and today parts are rapidly losing ice. Projection of future change in WAIS is, however, hampered by our poor understanding of past changes, especially during interglacial periods that could be analogs for the future, but which undoubtedly provide an opportunity ...
Vaughan, David G. +3 more
core +7 more sources
The crustal thickness of West Antarctica [PDF]
Journal of Geophysical Research: Solid Earth, 2014 P‐to‐S receiver functions (PRFs) from the Polar Earth Observing Network (POLENET) GPS and seismic leg of POLENET spanning West Antarctica and the Transantarctic Mountains deployment of seismographic stations provide new estimates of crustal thickness across West Antarctica, including the West Antarctic Rift System (WARS), Marie Byrd Land (MBL) dome ...
Sridhar Anandakrishnan +2 more
exaly +2 more sources
Late Cenozoic unification of East and West Antarctica. [PDF]
Nat Commun, 2018 AbstractThe kinematic evolution of the West Antarctic rift system has important consequences for regional and global geodynamics. However, due to the lack of Neogene seafloor spreading at the plate boundary and despite being poorly resolved, East-West Antarctic motion was assumed to have ended abruptly at 26 million years ago.
Granot R, Dyment J.
europepmc +8 more sources
Energetics of Surface Melt in West Antarctica [PDF]
The Cryosphere, 2020 Abstract. We use reanalysis data and satellite remote sensing of cloud properties to examine how meteorological conditions alter the surface energy balance to cause surface melt that is detectable in satellite passive microwave imagery over West Antarctica.
M. L. Ghiz +6 more
openaire +3 more sources
A subglacial water-flow model for West Antarctica [PDF]
Journal of Glaciology, 2009 AbstractThe current generation of continental-scale ice-sheet models cannot successfully reproduce the complex ice/water/sediment interactions of the West Antarctic ice sheet (WAIS) in a physically meaningful manner. The potential of a thin-film-based subglacial water-flow model for incorporation into a continental-scale coupled ice/water flow model of
A.M. Le, Brocq +3 more
openaire +4 more sources
Warm Waters in West Antarctica
Eos, 2017 A recent paper in Reviews of Geophysics describes the atmospheric and oceanic processes that are causing ice loss in the Antarctic.
Turner, John, Gudmundsson, Hilmar
openaire +2 more sources
Seismicity and neotectonics of West Antarctica [PDF]
Geophysical Research Letters, 2003 Newly discovered earthquakes in West Antarctica provide the first documentation of seismicity in the region. The data presented here indicate that the ice sheet does not suppress seismicity as has been previously proposed. However, the observed earthquake pattern suggests the West Antarctic rift system is no longer actively extending.
J. Paul Winberry, Sridhar Anandakrishnan
openaire +1 more source
Climatology and Surface Impacts of Atmospheric Rivers on West Antarctica
The Cryosphere, 2022 Abstract. Atmospheric rivers (ARs) transport large amounts of moisture from the mid- to high-latitudes and they are a primary driver of the most extreme snowfall events on Antarctica. ARs also raise surface temperatures when they make landfall over Antarctica, leading to surface melting.
Michelle L. Maclennan +9 more
openaire +3 more sources