Results 161 to 170 of about 28,822 (198)
Some of the next articles are maybe not open access.
Geological Society of America Bulletin, 1981
Folds in firn on glaciers of the Gilkey Trench, Alaska, have been observed during years of heavy snowfall and reduced ablation. The firn folds were formed by up-buckling and decollement resulting from intense lateral shortening within the underlying glacier ice.
openaire +1 more source
Folds in firn on glaciers of the Gilkey Trench, Alaska, have been observed during years of heavy snowfall and reduced ablation. The firn folds were formed by up-buckling and decollement resulting from intense lateral shortening within the underlying glacier ice.
openaire +1 more source
Assessing firn water storage from a multi-data firn-model inversion
2022<p>The ESA 4DGreenland project has the objective of performing an integrated assessment of Greenland&#8217;s hydrology through maximizing the use of Earth observation (EO) data. However, as meltwater is activated on the surface of the Greenland ice sheet and percolates into the firn, the firn water storage and delayed runoff are ...
Sebastian B. Simonsen +4 more
openaire +1 more source
Microstructural characterization of firn
Hydrological Processes, 2007AbstractIn this paper, we use a scanning electron microscope (SEM) coupled with X‐ray spectroscopy and electron back‐scattered diffraction patterns to examine firn in cores retrieved by the United States International Trans‐Antarctic Scientific Expedition.
I. Baker +3 more
openaire +1 more source
Characterizing the influence of idealized atmospheric forcings on firn using the SNOWPACK firn model
2023The porous layer of snow and firn that blankets ice sheets can store meltwater and buffer an ice sheet’s contribution to sea level rise. A warming climate threatens this buffering capacity and will likely lead to depletion of the air-filled pore space, known as the firn air content.
Megan Thompson-Munson +2 more
openaire +1 more source
Studying Firn Properties with Radiometer, Radar, and the Community Firn Model
IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023Haokui Xu, Brooke Medley, Leung Tsang
openaire +1 more source
Calibrating a compressible firn rheology and application to firn in shear zones
Most existing firn densification models are one-dimensional and empirical, limiting their ability to accurately represent complex stress regimes. For instance, they fail to account for enhanced densification in shear zones. In contrast, the Gagliardini and Meysonnier 1997 (GM97) model offers a more comprehensive approach by incorporating a compressibleAslak Grinsted +2 more
openaire +1 more source
Simulating Greenland Ice Slabs and Firn Aquifers with a 1D Firn Model
The Greenland Ice Sheet (GrIS) has been losing mass at an accelerating rate, primarily due to meltwater runoff to the ocean. Firn, a porous transition layer between snow and ice, has the potential to buffer the GrIS’s contribution to sea level rise by retaining this meltwater.Nikola Jovanovic +2 more
openaire +1 more source
1996
Different components and properties of the ice deposits on the earth (glaciers, ice sheets) store information on the climate and environment. We can mainly distinguish between three storage types: a) properties and isotopie composition of the ice itself, b) solid (and liquid) trace substances in the ice, and c) gaseous and volatile components.
openaire +1 more source
Different components and properties of the ice deposits on the earth (glaciers, ice sheets) store information on the climate and environment. We can mainly distinguish between three storage types: a) properties and isotopie composition of the ice itself, b) solid (and liquid) trace substances in the ice, and c) gaseous and volatile components.
openaire +1 more source