Results 101 to 110 of about 7,958 (231)

Modeling heat, mass, and species transport in polar firn [PDF]

Annals of Glaciology, 1996
A finite-element model for simulating multi-dimensional air flow with heat, mass and chemical species transport through firn is discussed. The model is applied to an investigation of near-surface layering effects on ventilation rates. Field measurements of permeability at Summit, Greenland, are presented that show that permeability varies by at least a
openaire   +1 more source

Future Atmospheric Rivers in Antarctica: Characteristics and Impacts With the IPSL Model

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 1, 16 January 2026.
Abstract Atmospheric rivers (ARs) are narrow corridors of intense water vapor transport that have significant impacts on the Antarctic surface mass balance (SMB) through both snow accumulation and surface melt due to rain and heat. To estimate their impacts on future SMB, we study Antarctic ARs in an ensemble of 21st‐century simulations of the IPSL‐CM6
L. Barthélemy, F. Codron, J. Wille, V. Favier, K. R. Clem   +4 more
wiley   +1 more source

Microstructure mapping: a new method for imaging deformation-induced microstructural features of ice on the grain scale [PDF]

, 2006
This work presents a method of mapping deformation-related sublimation patterns, formed on the surface of ice specimens, at microscopic resolution (3-4 gm pixel(-1)).
Azuma, N., Faria, S. H., Freitag, Johannes, Grigoriev, D., Hamann, Ilka, Kipfstuhl, Sepp, Lambrecht, A.   +6 more
core   +1 more source

Diffusion of stable isotopes in polar firn and ice: the isotope effect in firn diffusion

, 2000
Ice core records are often affected by post-depositional processes that need to be better understood to prevent wrong interpretation of the data. Records of stable isotopes are affected by diffusion both in the firn and in the deeper ice. We present a quantitative theory for diffusion in firn that applies the measured tortuosity factors for O₂ and CO₂ ...
Johnsen, Sigfús J., Clausen, Henrik B., Cuffey, Kurt M., Hoffmann, Georg, Creyts, Timothy T.   +4 more
openaire   +2 more sources

Historical land use couples with host density to affect myrtle rust impacts in a wet sclerophyll forest community in Eastern Australia

Ecological Solutions and Evidence, Volume 7, Issue 1, January–March 2026.
Plant pathogens worldwide continue to spread outside of their native ranges into new habitats. Our results highlight the importance of investigating variable processes like land use legacy that can correlate with impacts of non‐native plant pathogens.
Kristy Stevenson, Jarrod Carlson, William McDonald, Geoff Pegg, Jarrah Wills, Jennifer Firn   +5 more
wiley   +1 more source

Firn Model Intercomparison Experiment (FirnMICE)

Journal of Glaciology, 2017
Evolution of cold dry snow and firn plays important roles in glaciology; however, the physical formulation of a densification law is still an active research topic.
JESSICA M.D. LUNDIN, C. MAX STEVENS, ROBERT ARTHERN, CHRISTO BUIZERT, ANAIS ORSI, STEFAN R.M. LIGTENBERG, SEBASTIAN B. SIMONSEN, EVAN CUMMINGS, RICHARD ESSERY, WILL LEAHY, PAUL HARRIS, MICHIEL M. HELSEN, EDWIN D. WADDINGTON   +12 more
doaj   +1 more source

Modeling chemistry in and above snow at Summit, Greenland – Part 2: Impact of snowpack chemistry on the oxidation capacity of the boundary layer [PDF]

, 2012
The chemical composition of the boundary layer in snow covered regions is impacted by chemistry in the snowpack via uptake, processing, and emission of atmospheric trace gases.
Dibb, Jack E., Huey, L Gregory, Lefer, Barry, Liao, J, Stutz, J, Tanner, D, Thomas, J L, von Glasow, R   +7 more
core   +1 more source

Arctic‐breeding black‐legged kittiwakes show individual variation in foraging responses to glacial conditions without consequences for reproductive output

Oikos, Volume 2026, Issue 1, January 2026.
Behavioural plasticity is likely to influence how individuals continue to access resources under rapid climate change. Plasticity will be particularly important at highly dynamic, prey‐rich foraging areas such as upwelling fronts of marine‐terminating glaciers in the high Arctic, where profitability varies significantly across space and time ...
Frederick C. Mckendrick, Sébastien Descamps, Kathryn E. Arnold, Stéphanie Jenouvrier, Stephanie M. Harris, Philip Bertrand, Jack Kohler, Ward van Pelt, Olivier Chastel, William Jouanneau, Don‐Jean Léandri‐Breton, Pierre Blévin, Natasha E. Gillies, Haakon Hop, Philipp Assmy, Allison Bailey, Anette Wold, Hallvard Strøm, Samantha C. Patrick   +18 more
wiley   +1 more source

Review: The Importance of Lateral Flow Through Snow in Hydrological Processes Globally

Water Resources Research, Volume 62, Issue 1, January 2026.
Abstract The flow of liquid water through snow is a complex and poorly understood problem in snow hydrology. This paper reviews current understanding of the lateral flow of water through snow. We determined that the main physical processes producing lateral flow are: (a) hydraulic barriers at layer interfaces, (b) soil saturation overland/through‐snow ...
R. W. Webb, N. Ohara, H. P. Marshall, J. McNamara   +3 more
wiley   +1 more source

Mélange‐Driven Coupling Between the Central Pine Island Ice Shelf and the Piglet Glacier Reverses Recent Acceleration Trends

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract By analyzing velocity changes of the Pine Island Ice Shelf (PIIS) from October 2014 to August 2025 using Sentinel‐1A/B imagery, we find that the PIIS flow changed markedly over this period. A distinct slowdown occurred at the central PIIS from 14 March 2022 to 20 January 2023, during which velocities decreased from 13.15 ± 0.04 to 12.71 ± 0.17 
Yite Chien, Chunxia Zhou, Bryan Riel
wiley   +1 more source