Results 41 to 50 of about 190,113 (342)

DASSO: a data assimilation system for the Southern Ocean that utilizes both sea-ice concentration and thickness observations

open access: yesJournal of Glaciology, 2021
To improve Antarctic sea-ice simulations and estimations, an ensemble-based Data Assimilation System for the Southern Ocean (DASSO) was developed based on a regional sea ice–ocean coupled model, which assimilates sea-ice thickness (SIT) together with sea-
Hao Luo   +7 more
doaj   +1 more source

In situ primary production in young Antarctic sea ice [PDF]

open access: yes, 2002
An in situ incubation technique used successfully to measure the photosynthetic carbon assimilation of internal algal assemblages within thick multiyear Arctic sea ice was developed and improved to measure the photosynthetic carbon assimilation within ...
Mock, Thomas
core   +1 more source

Influence of Sea-Ice Anomalies on Antarctic Precipitation Using Source Attribution in the Community Earth System Model [PDF]

open access: yes, 2020
We conduct sensitivity experiments using a general circulation model that has an explicit water source tagging capability forced by prescribed composites of pre-industrial sea-ice concentrations (SICs) and corresponding sea surface temperatures (SSTs) to
Fyke, Jeremy G.   +7 more
core   +3 more sources

Explicit representation and parametrised impacts of under ice shelf seas in the z∗ coordinate ocean model NEMO 3.6 [PDF]

open access: yes, 2017
Ice-shelf-ocean interactions are a major source of freshwater on the Antarctic continental shelf and have a strong impact on ocean properties, ocean circulation and sea ice.
A. Jenkins   +4 more
core   +5 more sources

Compilation of Southern Ocean sea-ice records covering the last glacial-interglacial cycle (12–130 ka) [PDF]

open access: yesClimate of the Past, 2022
Antarctic sea ice forms a critical part of the Southern Ocean and global climate system. The behaviour of Antarctic sea ice throughout the last glacial-interglacial (G-IG) cycle (12 000–130 000 years) allows us to investigate the interactions between sea
M. Chadwick   +5 more
doaj   +1 more source

Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: investigating the roles of ocean and sea ice transport [PDF]

open access: yes, 2007
Antarctic krill, Euphausia superba Dana, has a heterogeneous circumpolar distribution in the Southern Ocean. Krill have a close association with sea ice which provides access to a critical food source and shelter, particularly in the early life stages ...
Murphy, E.J.   +2 more
core   +2 more sources

Seasonal prediction and predictability of regional Antarctic sea ice

open access: yesJournal of Climate, 2021
Compared to the Arctic, seasonal predictions of Antarctic sea ice have received relatively little attention. In this work, we utilize three coupled dynamical prediction systems developed at the Geophysical Fluid Dynamics Laboratory to assess the seasonal
M. Bushuk   +19 more
semanticscholar   +1 more source

Dark metabolism: a molecular insight into how the Antarctic sea-ice diatom Fragilariopsis cylindrus survives long-term darkness. [PDF]

open access: yesNew Phytol, 2019
Summary Light underneath Antarctic sea‐ice is below detectable limits for up to 4 months of the year. The ability of Antarctic sea‐ice diatoms to survive this prolonged darkness relies on their metabolic capability. This study is the first to examine the
Kennedy F   +4 more
europepmc   +2 more sources

Recent loss of floating ice and the consequent sea level contribution [PDF]

open access: yes, 2010
We combine new and published satellite observations and the results of a coupled ice-ocean model to provide the first estimate of changes in the quantity of ice floating in the global oceans and the consequent sea level contribution.
Giles, K   +5 more
core   +1 more source

Sea-Ice Production in Antarctic Coastal Polynyas Estimated From AMSR2 Data and Its Validation Using AMSR-E and SSM/I-SSMIS Data [PDF]

open access: yes, 2017
Antarctic coastal polynyas are very high sea-ice production areas. The resultant large amount of brine rejection leads to the formation of dense water.
Nihashi, Sohey   +2 more
core   +1 more source

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