Results 71 to 80 of about 129,372 (223)

A Vast Valley Network Beneath the Greenland Ice Sheet

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Mapping subglacial topography along the margin of the Greenland Ice Sheet was revolutionized by reconciling measurements of ice thickness and surface velocity using the principle of mass conservation. Despite evidence that many subglacial valleys resolved by that method extend upstream, it cannot be applied to the ice sheet's slower‐flowing ...
Allison M. Chartrand, Joseph A. MacGregor, Mathieu Morlighem, Olga V. Sergienko, Helen Ockenden, William T. Colgan, Gong Cheng   +6 more
wiley   +1 more source

Antarctic glaciology and meteorites [PDF]

, 1983
The state of knowledge of meteorites and glaciology is summarized, and directions for research are suggested.by Colin Bull and Michael E. Lipschutz.Contributions from oxygen isotope studies to paleoclimatology and the knowledge of ice flow conditions ...
Bull, Colin., Lipschutz, Michael E.
core  

Sea Ice Latent Heat Becomes More Active in the Arctic Sea Ice Energy Budget

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Arctic sea ice has experienced rapid decrease in recent decades. The sea ice property changes have altered its thermodynamic processes, enhancing the heat exchange among atmosphere‐ocean‐ice surface. However, heat exchange associated with sea ice phase‐change process, which is defined as sea ice latent heat, have received relatively little ...
Yuang Liu, Lujun Zhang, Guorui Shi, Xi Liang   +3 more
wiley   +1 more source

The Age and Origin of Block Deposits in the Victorian Alps, Australia

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 391-415, July/September 2026.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows, Michelle S. Worland, Julian Murton, Stephanie C. Mills, L. Keith Fifield   +4 more
wiley   +1 more source

Effects of hydrocarbon spills on the temperature and moisture regimes of Cryosols in the Ross Sea region [PDF]

, 2002
Hydrocarbon spills have occurred on Antarctic soils where fuel oils are utilized, moved or stored. We investigated the effects of hydrocarbon spills on soil temperature and moisture regimes by comparing the properties of existing oil contaminated sites ...
Paetzold, Ron F., Campbell, Iain B., Kimble, John M., Balks, Megan R., Aislabie, Jackie M.   +4 more
core   +1 more source

Multiproxy Chronologies of the Hurd Rock Glacier (Livingston Island, South Shetland Islands, Maritime Antarctica): Between the Late‐Stage Stabilization and Flow Deceleration

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 535-550, July/September 2026.
ABSTRACT The Hurd Rock Glacier, located on Livingston Island (South Shetland Islands archipelago, Maritime Antarctica), is a tongue‐shaped feature composed of angular boulders, displaying transverse ridges and furrows, and featuring lobate structures, which are more prominently developed in its frontal sector.
Rosana Menéndez‐Duarte, Jesús Ruiz‐Fernández, Laura Rodríguez‐Rodríguez, José M. Fernández‐Fernández, Vincent Rinterknecht, ASTER Team   +5 more
wiley   +1 more source

Five decades of strong temporal variability in the flow of Brunt Ice Shelf, Antarctica

Journal of Glaciology, 2017
Data showing velocity changes on the Brunt Ice Shelf (BIS), Antarctica, over the last 55 years are presented and analysed. During this period no large-scale calving events took place and the ice shelf gradually grew in size. Ice flow velocities, however,
G. HILMAR GUDMUNDSSON, JAN DE RYDT, THOMAS NAGLER   +2 more
doaj   +1 more source

Antarctic Snowfall Patterns and Trends: A Regional Analysis Across Multiple Data Sets

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Snowfall is the dominant positive component of the Antarctic surface mass balance (SMB) and a key factor regulating global sea level. However, substantial uncertainty remains in its spatial distribution and long‐term variability due to sparse in situ observations and retrieval challenges over polar ice sheets.
Valerie Song, Yuekui Yang, Surendra Bhatta   +2 more
wiley   +1 more source

The potential of marine ice cliff instability for Amundsen Sea glaciers revisited

Annals of Glaciology
Marine ice cliff instability (MICI) is the hypothesis that self-sustained retreat of ice sheets can be initiated when sufficiently tall ice cliffs are exposed.
Sainan Sun, Gudmundur Hilmar Gudmundsson
doaj   +1 more source

Emergent Dynamics From a Position‐Based Calving Function and the Limits of a Rate‐Based Calving Function

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 7, July 2026.
Abstract A wide range of functions are currently available for simulating the calving of marine‐terminating glaciers, but there is no consensus on the best approach to represent the calving process in glacier and ice‐sheet models. Current assessments of calving functions are often crudely done by fitting functions to observed changes in terminus ...
Iain Wheel, Douglas I. Benn, Anna J. Crawford   +2 more
wiley   +1 more source