Results 31 to 40 of about 100,423 (273)

Seawater softening of suture zones inhibits fracture propagation in Antarctic ice shelves

Nature Communications, 2019
Suture zones are abundant on Antarctic ice shelves and widely observed to impede fracture propagation. Here we show that fracture detainment is principally controlled by the zones’ enhanced seawater contents, reducing fracture-driving stresses by orders ...
Bernd Kulessa, Adam D. Booth, Martin O’Leary, Daniel McGrath, Edward C. King, Adrian J. Luckman, Paul R. Holland, Daniela Jansen, Suzanne L. Bevan, Sarah S. Thompson, Bryn Hubbard   +10 more
doaj   +1 more source

Physical and biological properties of early winter Antarctic sea ice in the Ross Sea

Annals of Glaciology, 2020
This work presents the results of physical and biological investigations at 27 biogeochemical stations of early winter sea ice in the Ross Sea during the 2017 PIPERS cruise. Only two similar cruises occurred in the past, in 1995 and 1998.
Jean-Louis Tison, Ted Maksym, Alexander D. Fraser, Matthew Corkill, Noriaki Kimura, Yuichi Nosaka, Daiki Nomura, Martin Vancoppenolle, Steve Ackley, Sharon Stammerjohn, Sarah Wauthy, Fanny Van der Linden, Gauthier Carnat, Célia Sapart, Jeroen de Jong, François Fripiat, Bruno Delille   +16 more
doaj   +1 more source

Geothermal Heat Flux Reveals the Iceland Hotspot Track Underneath Greenland

Geophysical Research Letters, 2018
Curie depths beneath Greenland are revealed by spectral analysis of data from the World Digital Magnetic Anomaly Map 2. A thermal model of the lithosphere then provides a corresponding geothermal heat flux map.
Yasmina M. Martos, Tom A. Jordan, Manuel Catalán, Thomas M. Jordan, Jonathan L. Bamber, David G. Vaughan   +5 more
doaj   +1 more source

Summary of Glaciological Studies in Mizuho Plateau (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology)

Antarctic Record, 1979
A summary report of the traverse glaciology proiect accomplished by the Japanese Antarctic Research Expedition in 1969-1975 was published in 1978 under the title of "Glaciological Studies in Mizuho Plateau, East Antarctica, 1969- 1975" as a special issue
Tamotsu ISHIDA
doaj   +1 more source

Towards Bedmap Himalayas: development of an airborne ice-sounding radar for glacier thickness surveys in High-Mountain Asia

Annals of Glaciology, 2020
The thickness of glaciers in High-Mountain Asia (HMA) is critical in determining when the ice reserve will be lost as these glaciers thin but is remarkably poorly known because very few measurements have been made.
H. D. Pritchard, E. C. King, D. J. Goodger, M. McCarthy, C. Mayer, R. Kayastha   +5 more
doaj   +1 more source

The sensitivity of Cook Glacier, East Antarctica, to changes in ice-shelf extent and grounding-line position

Journal of Glaciology, 2022
The Wilkes Subglacial Basin in East Antarctica contains ice equivalent to 3–4 m of global mean sea level rise and is primarily drained by Cook Glacier.
James R. Jordan, G. Hilmar Gudmundsson, Adrian Jenkins, Chris R. Stokes, Bertie W. J. Miles, Stewart S. R. Jamieson   +5 more
doaj   +1 more source

Continent-wide estimates of Antarctic strain rates from Landsat 8-derived velocity grids

Journal of Glaciology, 2017
Strain rates are fundamental measures of ice flow and are used in a wide variety of glaciological applications including investigations of bed properties, calculations of basal mass balance on ice shelves, and constraints on ice rheological models ...
K. Alley, T. Scambos, R. Anderson, H. Rajaram, A. Pope, T. Haran   +5 more
semanticscholar   +1 more source

Surface mass balance of small glaciers on James Ross Island, north-eastern Antarctic Peninsula, during 2009–2015

Journal of Glaciology, 2018
Two small glaciers on James Ross Island, the north-eastern Antarctic Peninsula, experienced surface mass gain between 2009 and 2015 as revealed by field measurements. A positive cumulative surface mass balance of 0.57 ± 0.67 and 0.11 ± 0.37 m w.e.
Zbyněk Engel, K. Láska, D. Nývlt, Z. Stachoň   +3 more
semanticscholar   +1 more source

Comment on Zwally and others (2015)-mass gains of the Antarctic ice sheet exceed losses [PDF]

, 2016
In their article ‘Mass gains of the Antarctic ice sheet exceed losses’ Zwally and others (2015) choose Vostok Subglacial Lake as an exemplary region to demonstrate their inference of surface height change rates from a portion of the ICESat mission’s ...
Dietrich, R., Horwath, M., Richter, Andreas Jorg   +2 more
core   +1 more source

Adaptive mesh refinement versus subgrid friction interpolation in simulations of Antarctic ice dynamics

Annals of Glaciology, 2016
At least in conventional hydrostatic ice-sheet models, the numerical error associated with grounding line dynamics can be reduced by modifications to the discretization scheme. These involve altering the integration formulae for the basal traction and/or
S. Cornford, Daniel F. Martin, V. Lee, A. J. Payne, E. Ng   +4 more
semanticscholar   +1 more source