Results 31 to 40 of about 36,673 (225)

Variability and changes of Arctic sea ice draft distribution – submarine sonar measurements revisited [PDF]

open access: yesThe Cryosphere, 2011
Changes in the mean sea ice thickness and concentration in the Arctic are well known. However, quantitative information about changes in the ice thickness distribution and the composition of the pack ice is lacking.
J. Haapala, A. Oikkonen
doaj   +1 more source

Predominance of β‐proteobacteria in summer melt pools on Arctic pack ice [PDF]

open access: bronzeLimnology and Oceanography, 2004
The diversity and community structure of bacteria in melt pools on Arctic pack ice floes were dominated by bproteobacteria. Thirty‐five percent of the pure cultures isolated in 1997 from pack ice floes north of Svalbard and in the Fram Strait were from the β‐proteobacteria group.
Robin Brınkmeyer   +3 more
openalex   +4 more sources

Spatial and temporal variability of oceanic heat flux to the Arctic ice pack [PDF]

open access: bronzeJournal of Geophysical Research: Oceans, 2005
In order to simulate the large‐scale structure and temporal variability of oceanic heat flux (Fw) to the Arctic perennial ice pack, observations of heat in the mixed layer and ice dynamics are compared with parameterizations and climatologies. Long‐term drifting platform observations of seawater temperature and salinity (primarily from automated buoys)
Richard Krishfield, Donald K. Perovich
openalex   +5 more sources

Oxygen fluxes beneath Arctic land-fast ice and pack ice: towards estimates of ice productivity [PDF]

open access: hybridPolar Biology, 2018
Sea-ice ecosystems are among the most extensive of Earth’s habitats; yet its autotrophic and heterotrophic activities remain poorly constrained. We employed the in situ aquatic eddy-covariance (AEC) O2 flux method and laboratory incubation techniques (H14CO3−, [3H] thymidine and [3H] leucine) to assess productivity in Arctic sea-ice using different ...
Karl M. Attard   +10 more
openalex   +12 more sources

Past and future interannual variability in Arctic sea ice in coupled climate models [PDF]

open access: yesThe Cryosphere, 2019
The diminishing Arctic sea ice pack has been widely studied, but previous research has mostly focused on time-mean changes in sea ice rather than on short-term variations that also have important physical and societal consequences.
J. R. Mioduszewski   +5 more
doaj   +1 more source

On the future navigability of Arctic sea routes: high-resolution projections of the Arctic Ocean and sea ice [PDF]

open access: yes, 2017
The rapid Arctic summer sea ice reduction in the last decade has lead to debates in the maritime industries on the possibility of an increase in cargo transportation in the region.
Aksenov, Yevgeny   +3 more
core   +1 more source

Elastic waves in Arctic pack ice

open access: yesEos, Transactions American Geophysical Union, 1954
Elastic wave propagation was studied in the Arctic ice pack, on the Beaufort Sea, the Arctic Ocean, and at near‐shore locations. Ice thicknesses varied from 0.1 to 2.1 meters and water depths from 1 ½ to 3800 meters. Values of the elastic constants were derived from the measured velocities of the longitudinal and shear waves and the density. Dispersive
Jack Oliver, A. P. Crary, R. D. Cotell
openaire   +2 more sources

Climate change and ice hazards in the Beaufort Sea

open access: yesElementa: Science of the Anthropocene, 2014
Recent reductions in the summer extent of sea ice have focused the world’s attention on the effects of climate change. Increased CO2-derived global warming is rapidly shrinking the Arctic multi-year ice pack.
D. G. Barber   +9 more
doaj   +1 more source

Arctic Ocean surface geostrophic circulation 2003–2014 [PDF]

open access: yesThe Cryosphere, 2017
Monitoring the surface circulation of the ice-covered Arctic Ocean is generally limited in space, time or both. We present a new 12-year record of geostrophic currents at monthly resolution in the ice-covered and ice-free Arctic Ocean derived from ...
T. W. K. Armitage   +7 more
doaj   +1 more source

SASIEv.1: a framework for seasonal and multi-centennial Arctic sea ice emulation [PDF]

open access: yesGeoscientific Model Development
The high computational expense of complex climate models and their tendency to underestimate observational records of Arctic sea ice sensitivity to anthropogenic forcers challenge our ability to assess the magnitude of forcing that will cause Arctic sea ...
S. M. Chilcott   +3 more
doaj   +1 more source

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