Results 71 to 80 of about 2,510,664 (339)

The role of GPR techniques in determining ice cave properties: Peña Castil ice cave, Picos de Europa [PDF]

open access: yes, 2016
Producción CientíficaThe structure and ice content of ice caves are poorly understood. Ground penetrating radar (GPR) can provide useful insights but has only rarely been applied to ice caves.
Gómez Lende, Manuel   +3 more
core   +2 more sources

Estimating Arctic sea ice thickness and volume using CryoSat-2 radar altimeter data

open access: yesAdvances in Space Research, 2017
Arctic sea ice is a major element of the Earth’s climate system. It acts to regulate regional heat and freshwater budgets and subsequent atmospheric and oceanic circulation across the Arctic and at lower latitudes.
R. Tilling, A. Ridout, A. Shepherd
semanticscholar   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

Spatiotemporal Analysis and Modeling of Sea Ice Growth Rate in Nella Fjord, Antarctica: Based on Observations During the 36th Chinese National Antarctic Research Expedition in 2020

open access: yesFrontiers in Environmental Science, 2022
Obtaining field sea ice data is crucial for the validation and improvement of satellite data and numerical models. During the 36th Chinese National Antarctic Research Expedition, seven field observations covering the whole area were conducted in Nella ...
Xiaoyu Sun   +6 more
doaj   +1 more source

Kennicott Glacier, Alaska: Ice Thickness Measurements using Ground Penetrating Radar (and Inexperienced Skiiers) [PDF]

open access: yes, 2013
What happens when you send a professor, a mentor, and seven inexperienced undergraduates into the field? Dr. Erin Pettit and UAF graduate student Christina Carr led myself and six other undergraduates onto Kennicott Glacier in hopes of teaching us about
Albert, Sarah
core  

Assessing the Impact of Lead and Floe Sampling on Arctic Sea Ice Thickness Estimates from Envisat and CryoSat‐2

open access: yesJournal of Geophysical Research: Oceans, 2019
Multidecadal observations of sea ice thickness, in addition to those available for extent, are key to understanding long ‐ term variations and trends in the amount of Arctic sea ice. The European Space Agency's Envisat (2002 – 2010) and CryoSat ‐ 2 (2010
R. Tilling, A. Ridout, A. Shepherd
semanticscholar   +1 more source

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

open access: yesFEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose   +9 more
wiley   +1 more source

The role of subtemperate slip in thermally driven ice stream margin migration [PDF]

open access: yes, 2018
The amount of ice discharged by an ice stream depends on its width, and the widths of unconfined ice streams such as the Siple Coast ice streams in West Antarctica have been observed to evolve on decadal to centennial timescales.
Gagliardini, Olivier   +2 more
core   +4 more sources

Grease-ice thickness parameterization [PDF]

open access: yesAnnals of Glaciology, 2011
AbstractGrease ice is a mixture of sea water and frazil ice crystals forming in Arctic and Antarctic waters. the initial grease-ice cover, or the grease ice forming during winter in leads and polynyas, may therefore have mixed properties of water and ice.
openaire   +1 more source

Calibrated Ice Thickness Estimate for All Glaciers in Austria

open access: yesFrontiers in Earth Science, 2019
Knowledge on ice thickness distribution and total ice volume is a prerequisite for computing future glacier change for both glaciological and hydrological applications. Various ice thickness estimation methods have been developed but regional differences
K. Helfricht   +3 more
semanticscholar   +1 more source

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