Results 1 to 10 of about 64,515 (325)

Sympagic Fauna in and Under Arctic Pack Ice in the Annual Sea-Ice System of the New Arctic [PDF]

Frontiers in Marine Science, 2020
A strong decline and thinning of the Arctic sea-ice cover over the past five decades has been documented. The former multiyear sea-ice system has largely changed to an annual system and with it the dynamics of sea-ice transport across the Arctic Ocean ...
Julia Ehrlich, Julia Ehrlich, Fokje L. Schaafsma, Bodil A. Bluhm, Ilka Peeken, Giulia Castellani, Angelika Brandt, Angelika Brandt, Hauke Flores   +8 more
doaj   +10 more sources

Platelet Ice Under Arctic Pack Ice in Winter [PDF]

Geophysical Research Letters, 2020
The formation of platelet ice is well known to occur under Antarctic sea ice, where subice platelet layers form from supercooled ice shelf water. In the Arctic, however, platelet ice formation has not been extensively observed, and its formation and ...
C. Katlein, V. Mohrholz, I. Sheikin, P. Itkin, D. Divine, J. Stroeve, Arttu Jutila, D. Krampe, Egor Shimanchuk, Ian A. Raphael, B. Rabe, I. Kuznetov, M. Mallet, Hailong Liu, M. Hoppmann, Ying, C. Fang, A. Dumitrascu, Stefanie Arndt, P. Anhaus, M. Nicolaus, IlkkaMatero, M. Oggier, H. Eicken, C. Haas   +24 more
semanticscholar   +11 more sources

Future sea ice weakening amplifies wind-driven trends in surface stress and Arctic Ocean spin-up [PDF]

Nature Communications
Arctic sea ice mediates atmosphere-ocean momentum transfer, which drives upper ocean circulation. How Arctic Ocean surface stress and velocity respond to sea ice decline and changing winds under global warming is unclear.
Morven Muilwijk, Tore Hattermann, Torge Martin, Mats A. Granskog   +3 more
doaj   +3 more sources

Culturable diversity of Arctic phytoplankton during pack ice melting [PDF]

Elementa: Science of the Anthropocene, 2020
Massive phytoplankton blooms develop at the Arctic ice edge, sometimes extending far under the pack ice. An extensive culturing effort was conducted before and during a phytoplankton bloom in Baffin Bay between April and July 2016.
Catherine Gérikas Ribeiro, Adriana Lopes dos Santos, Priscillia Gourvil, Florence Le Gall, Dominique Marie, Margot Tragin, Ian Probert, Daniel Vaulot   +7 more
doaj   +9 more sources

The operational determination of wind stress on the Arctic ice pack

, 1977
: The performance of routine FNWC sea level pressure analyses and forecasts in the Beaufort Sea is evaluated for driving an ice model. The geostrophic winds determined from the FNWC pressure fields are compared to geostrophic winds determined from the ...
Larry Dennis Ashim
semanticscholar   +5 more sources

A red tide in the pack ice of the Arctic Ocean [PDF]

Scientific Reports, 2019
AbstractIn the Arctic Ocean ice algae constitute a key ecosystem component and the ice algal spring bloom a critical event in the annual production cycle. The bulk of ice algal biomass is usually found in the bottom few cm of the sea ice and dominated by pennate diatoms attached to the ice matrix.
L. Olsen, P. Duarte, Cecilia Peralta‐Ferriz, Hanna M. Kauko, M. Johansson, I. Peeken, M. Różańska‐Pluta, A. Tatarek, J. Wiktor, M. Fernández‐Méndez, P. Wagner, A. Pavlov, H. Hop, P. Assmy   +13 more
semanticscholar   +10 more sources

Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice [PDF]

Scientifica, 2016
The at-sea distribution of top predators, seabirds and marine mammals, was determined in the high Arctic pack ice on board the icebreaker RV Polarstern in July to September 2014. In total, 1,620 transect counts were realised, lasting 30 min each.
Claude R. Joiris, Karin Boos, Diederik D’Hert, Dominik A. Nachtsheim   +3 more
doaj   +3 more sources

The seeding of ice algal blooms in Arctic pack ice: The multiyear ice seed repository hypothesis

Journal of Geophysical Research: Biogeosciences, 2017
During the Norwegian young sea ICE expedition (N‐ICE2015) from January to June 2015 the pack ice in the Arctic Ocean north of Svalbard was studied during four drifts between 83° and 80°N.
L. Olsen, S. Laney, P. Duarte, Hanna M. Kauko, M. Fernández‐Méndez, C. Mundy, A. Rösel, A. Meyer, P. Itkin, L. Cohen, I. Peeken, A. Tatarek, M. Różańska‐Pluta, Józef Wiktor, Torbjørn Taskjelle, A. Pavlov, S. Hudson, M. Granskog, H. Hop, P. Assmy   +19 more
semanticscholar   +8 more sources

Ice-tethered observational platforms in the Arctic Ocean pack ice

IFAC-PapersOnLine, 2016
Abstract: The Arctic Ocean faces rapid climate change, which impacts both physical and biological components of the marine ecosystem. Due to complicated and costly logistics inherent to sampling ice-covered areas, most studies conducted in the Arctic are based on relatively short-term sampling (weeks to months) centered around the minimum ice season.
J. Berge, M. Geoffroy, G. Johnsen, F. Cottier, B. Bluhm, D. Vogedes   +5 more
semanticscholar   +4 more sources

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

Polar 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 ...
K. Attard, D. H. Søgaard, J. Piontek, B. Lange, C. Katlein, H. Sørensen, D. McGinnis, L. Rovelli, S. Rysgaard, F. Wenzhöfer, R. Glud   +10 more
semanticscholar   +13 more sources