Results 31 to 40 of about 27,505 (199)

Investigating firn structure and density in the accumulation area of the Grosser Aletschgletscher using ground-penetrating radar [PDF]

The Cryosphere
The role of firn structure and density in geodetic glacier mass balance estimation has been constrained, with studies in alpine conditions primarily relying on models.
A. M. Patil, A. M. Patil, C. Mayer, T. Seehaus, A. R. Groos, A. Bauder, A. Bauder   +6 more
doaj   +1 more source

Response of Pacific-sector Antarctic ice shelves to the El Niño/Southern Oscillation. [PDF]

, 2018
Satellite observations over the past two decades have revealed increasing loss of grounded ice in West Antarctica, associated with floating ice shelves that have been thinning.
Adusumilli, S, Fricker, HA, Howard, S, Padman, L, Paolo, FS, Siegfried, MR   +5 more
core   +1 more source

Climate Effects on Firn Permeability Are Preserved Within a Firn Column [PDF]

Journal of Geophysical Research: Earth Surface, 2019
AbstractWe have investigated the impacts of short‐term climatic events on firn‐permeability evolution, by analyzing density and permeability measurements from the NEEM 2009 S2 firn core from the North Greenland Eemian Ice Drilling (NEEM) site in Greenland.
K. M. Keegan, M. R. Albert, J. R. McConnell, I. Baker   +3 more
openaire   +1 more source

137CS gamma-ray detection at Summit, Greenland [PDF]

, 1994
Global fall-out from atmospheric testing of thermonuclear weapons produced horizon markers corresponding to the initiation of testing in 1953 and the maximum fall-out in 1963.
Dibb, Jack E., Dunphy, P. P.
core   +2 more sources

Melt regimes, internal stratigraphy, and flow dynamics of three glaciers in the Alaska Range [PDF]

, 2012
We used ground-penetrating radar (GPR), GPS and glaciochemistry to evaluate melt regimes and ice depths, important variables for mass-balance and ice-volume studies, of Upper Yentna Glacier, Upper Kahiltna Glacier and the Mount Hunter ice divide, Alaska.
Arcone, Steven, Campbell, Seth, Introne, Douglas, Kreutz, K, Osterberg, Erich, Volkening, Kevin, Wake, Cameron P, Winski, Dominic   +7 more
core   +2 more sources

Firn-air Modelling in the Community Firn Model

, 2023
Abstract: Over the last glacial period, a series of 25 climate fluctuations were observed, characterized by rapid warming followed by a longer cooling period. One of these Dansgaard-Oescher (D-O) events happened around 11,500 years ago and heralded the end of the ice age and the beginning of the Holocene period.
openaire   +1 more source

A cold laboratory hyperspectral imaging system to map grain size and ice layer distributions in firn cores [PDF]

The Cryosphere
The Greenland and Antarctic ice sheets are covered in a layer of porous firn. Knowledge of firn structure improves our understanding of ice sheet mass balance, supra- and englacial hydrology, and ice core paleoclimate records.
I. E. McDowell, I. E. McDowell, K. M. Keegan, S. M. Skiles, C. P. Donahue, E. C. Osterberg, R. L. Hawley, H.-P. Marshall   +7 more
doaj   +1 more source

Firn Evolution at Camp Century, Greenland: 1966–2100

Frontiers in Earth Science, 2021
Camp Century is an American military base built in 1959 under the surface of the Greenland ice sheet and decommissioned in 1967. Here, we use outputs from RACMO2.3p2 and CanESM2 climate models, adjusted to meteorological observations, and a firn model to
Baptiste Vandecrux, William Colgan, Anne M. Solgaard, Jørgen Peder Steffensen, Nanna B. Karlsson   +4 more
doaj   +1 more source

Antiviral inhalation medicinal product based on interferon alpha-2b: A study of efficacy, subchronic toxicity, and toxicokinetics in rodents

Биопрепараты: Профилактика, диагностика, лечение
INTRODUCTION. Developing high-dose interferon-based medicinal products (MPs) is particularly relevant for effective causal treatment of acute respiratory viral infections, influenza, and COVID-19 coronavirus infection.
N. V. Pankova, I. A. Leneva, I. N. Falynskova, A. V. Ivanina, E. S. Korovkina, O. E. Khuttunen, A. S. Kiryanova, S. V. Sheremetyev, D. V. Lonshakov   +8 more
doaj   +1 more source

Greenland's firn responds more to warming than to cooling [PDF]

The Cryosphere
The porous layer of snow and firn on the Greenland Ice Sheet stores meltwater and limits the rate at which the ice sheet contributes to sea level rise. This buffer is threatened in a warming climate. To better understand the nature and timescales of firn'
M. Thompson-Munson, M. Thompson-Munson, J. E. Kay, J. E. Kay, B. R. Markle, B. R. Markle   +5 more
doaj   +1 more source