Results 71 to 80 of about 7,958 (231)

Recent climate anomalies and their impact on snow chemistry at South Pole, 1987 - 1994 [PDF]

, 1996
Three 2-m deep snowpits sampled at South Pole in 1994 provide detailed (2-cm resolution) profiles of the concentrations of soluble ionic species for the period 1987 - 1994.
Dibb, Jack E., Whitlow, Sallie I
core   +2 more sources

Anisotropic Melt Inclusions as a Confounding Signal for Ice‐Penetrating Radar Observations

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Ice‐penetrating radar is a powerful geophysical tool for understanding the subsurfaces of Earth, Mars, and icy moons. Radar reflectivity, attenuation, and birefringence are used to infer subsurface hydrology, englacial temperature, water content, and crystal orientation fabric.
A. H. Cheng, D. M. Schroeder, N. S. Wolfenbarger, R. Shaper, C. Seltzer, B. Hills   +5 more
wiley   +1 more source

Air-snow exchange investigations at Summit, Greenland: An overview [PDF]

, 1997
The Greenland Ice Sheet Project 2 (GISP2) and Greenland Ice Core Project (GRIP) deep drilling programs at Summit, Greenland included support (both logistical and scientific) of extensive investigation of atmospheric transport and air-snow exchange ...
Dibb, Jack E., Jaffrezo, J L
core   +2 more sources

Rainfall and Rain‐on‐Snow Events Over Greenland in Summer: Climatology, Trends, Synoptics

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Rain‐on‐snow (ROS) events in the Arctic can lead to major impacts on the snow cover, cryosphere and environment. During the last decades, these events have significantly increased, mostly due to climate change. Here, we use outputs from the regional climate model MAR (version 3.14) driven by the ERA5 reanalysis at 10‐km resolution over ...
Emilie Frame, Benjamin Pohl, Charles Amory, Xavier Fettweis, Victoire Buffet, Eric Bernard, Olivier Champagne, Vincent Favier   +7 more
wiley   +1 more source

Revealing firn structure at Dome A region in East Antarctica using cultural seismic noise [PDF]

The Cryosphere
Antarctica is mostly covered by snow, firn, and glacier ice, and the transformation from snow to firn and glacier ice influences energy transfer and material transport in polar regions.
Z. Song, Z. Song, Y. Pan, Y. Pan, J. Li, J. Li, H. Peng, H. Peng, Y. Wang, Y. Wang, Y. Yang, Y. Yang, K. Lu, X. Tang, X. Tang, X. Zhang, X. Zhang, X. Zhang   +17 more
doaj   +1 more source

Greenland: Bringing together remote sensing and fieldwork. [PDF]

, 2008
With global land and sea temperatures rising, the importance of accurate monitoring of the world's ice sheets is increasing. Satellite radar altimetry can be used to measure elevation changes of ice sheets from which mass balance can be derived.
Mair, Douglas, Nienow, Peter, Parry, Victoria, Scott, Julian   +3 more
core   +1 more source

Lattice‐Boltzmann modeling of the air permeability of polar firn [PDF]

Journal of Geophysical Research: Earth Surface, 2010
Recent advances in three‐dimensional (3D) imaging of snow and firn combined with numerical modeling of flow through complex geometries have greatly improved the ability to predict permeability values based on microstructure. In this work, we combined 3D reconstructions of polar firn microstructure obtained from microcomputed tomography (μCT) and a 3D ...
Zoe Courville, Maria Hörhold, Mark Hopkins, Mary Albert   +3 more
openaire   +1 more source

Rapid Seismic and Infrasound Assessment of Large Landslides: A Case Study From Denali National Park and Preserve (Alaska)

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 3, March 2026.
Abstract Large, rapid landslides are a global hazard that can occur in remote, mountainous areas. Eyewitness reports of landslides and satellite imagery can often be limited or delayed, particularly during inclement weather. However, landslide‐generated seismic and infrasound (low‐frequency atmospheric sound) waves can be remotely detected in near real‐
Liam Toney, Michael E. West, Ezgi Karasözen, Denny Capps, Elaine Collins, Kate E. Allstadt, Jana Pursley, Heather McFarlin, Anne Mangeney, David Fee, Dennis Staley, Matthew M. Haney, John J. Lyons, John Bellini   +13 more
wiley   +1 more source

Climatic and insolation control on the high-resolution total air content in the NGRIP ice core [PDF]

Climate of the Past, 2016
Because the total air content (TAC) of polar ice is directly affected by the atmospheric pressure and temperature, its record in polar ice cores was initially considered as a proxy for past ice sheet elevation changes. However, the Antarctic ice core TAC
O. Eicher, M. Baumgartner, A. Schilt, J. Schmitt, J. Schwander, T. F. Stocker, H. Fischer   +6 more
doaj   +1 more source

A synthetic study of acoustic full waveform inversion to improve seismic modelling of firn

Annals of Glaciology, 2022
The density structure of firn has implications for hydrological and climate modelling and for ice shelf stability. The firn structure can be evaluated from depth models of seismic velocity, widely obtained with Herglotz-Wiechert inversion (HWI), an ...
Emma Pearce, Adam D. Booth, Sebastian Rost, Paul Sava, Tuğrul Konuk, Alex Brisbourne, Bryn Hubbard, Ian Jones   +7 more
doaj   +1 more source