Results 11 to 20 of about 1,255 (262)

Status and trends in the structure of Arctic benthic food webs [PDF]

open access: yesPolar Research, 2015
Ongoing climate warming is causing a dramatic loss of sea ice in the Arctic Ocean, and it is projected that the Arctic Ocean will become seasonally ice-free by 2040.
Monika Kędra   +13 more
doaj   +1 more source

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

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

open access: yesPolar 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 ...
Attard, Karl M.   +10 more
openaire   +10 more sources

A Submarine Sonar Study of Arctic Pack Ice [PDF]

open access: yesJournal of Glaciology, 1975
AbstractA continuous profile of the Arctic Ocean ice canopy from Spitsbergen to the North Pole was made with 48 kHz echo sounders mourned on a nuclear submarine. A semi-automatic digitizer was used to measure coordinates from the records at a frequency of about 1 000 points per linear kilometre of track.
Williams Elizabeth   +2 more
openaire   +1 more source

Hydraulic controls of summer Arctic pack ice albedo [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2004
Linkages between albedo, surface morphology, melt pond distribution, and properties of first‐year and multiyear sea ice have been studied at two field sites in the North American Arctic between 1998 and 2001. It is shown that summer sea‐ice albedo depends critically on surface melt‐pond hydrology, controlled by melt rate, ice permeability, and ...
H. Eicken   +4 more
openaire   +1 more source

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

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

sea-ice arching and multiple flow States of Arctic pack ice [PDF]

open access: yesAnnals of Glaciology, 2006
AbstractFlow of ice through narrow channels is Significantly affected by the amount of Shear Strength in plastic rheologies used in Sea-ice models as well as in reality. When thermodynamics is added to this problem, the capability of multiple flow States for the Same forcing through narrow passages arises.
W.D. Hibler, J.K. Hutchings, C.F. Ip
openaire   +1 more source

Toward a marginal Arctic sea ice cover: changes to freezing, melting and dynamics [PDF]

open access: yesThe Cryosphere
As the summer Arctic sea ice extent has retreated, the marginal ice zone (MIZ) has been widening. The MIZ is defined as the region of the ice cover that is influenced by waves and for convenience here is defined as the region of the ice cover between sea
R. C. Frew   +4 more
doaj   +1 more source

Leads in Arctic pack ice enable early phytoplankton blooms below snow-covered sea ice [PDF]

open access: yesScientific Reports, 2017
AbstractThe Arctic icescape is rapidly transforming from a thicker multiyear ice cover to a thinner and largely seasonal first-year ice cover with significant consequences for Arctic primary production. One critical challenge is to understand how productivity will change within the next decades.
Assmy, Philipp   +40 more
openaire   +8 more sources

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