Results 1 to 10 of about 2,871 (124)

Physical and bacterial controls on inorganic nutrients and dissolved organic carbon during a sea ice growth and decay experiment [PDF]

Marine Chemistry, 2014
Abstract We investigated how physical incorporation, brine dynamics and bacterial activity regulate the distribution of inorganic nutrients and dissolved organic carbon (DOC) in artificial sea ice during a 19-day experiment that included periods of both ice growth and decay.
Zhou, Jiayun, Delille, Bruno, Kaartokallio, Hermanni, Kattner, Gerhard, Kuosa, Harri, Tison, Jean-Louis, Autio, Riitta, Dieckmann, Gerhard S., Evers, Karl-Ulrich, Jorgensen, Linda, Kennedy, Hilary, Kotovitch, Marie, Luhtanen, Anne-Mari, Stedmon, Colin A., Thomas, David N.   +14 more
openaire   +6 more sources

Initial assessment of all-season Arctic sea ice thickness from ICESat-2 [PDF]

Journal of Glaciology
We present an initial assessment of all-season Arctic sea ice thickness estimates from ICESat-2 by combining freeboard retrievals with all-season SnowModel-LG snow loading.
Alek Petty, Alex Cabaj, Jack C. Landy
doaj   +2 more sources

Inorganic carbon transport during sea ice growth and decay: A carbon pump in polar seas [PDF]

Journal of Geophysical Research: Oceans, 2007
During sea ice formation in polar areas, brine rejection increases the density in the underlying water column and thereby contributes to the formation of deep and intermediate water masses in the world ocean. Here we present evidence that dissolved inorganic carbon (TCO2) is rejected together with brine from growing sea ice and that low temperatures ...
Rysgaard, Søren, Glud, Ronnie Nøhr, Sejr, M.K., Bendtsen, J., Christensen, P.B.   +4 more
openaire   +5 more sources

Sources of seasonal sea-ice bias for CMIP6 models in the Hudson Bay Complex

Annals of Glaciology, 2023
The seasonal ice-free period in the Hudson Bay Complex (HBC) has grown longer in recent decades in response to warming, both from progressively earlier sea-ice retreat in summer and later sea-ice advance in fall.
Alex D. Crawford, Erica Rosenblum, Jennifer V. Lukovich, Julienne C. Stroeve   +3 more
doaj   +1 more source

Microstructure evolution of young sea ice from a Svalbard fjord using micro-CT analysis

Journal of Glaciology, 2022
We analysed the three-dimensional microstructure of sea ice by means of X-ray-micro computed tomography. Microscopic (brine- and air- pore sizes, numbers and connectivity) and macroscopic (salinity, density, porosity) properties of young Arctic sea ice ...
Martina Lan Salomon, Sönke Maus, Chris Petrich   +2 more
doaj   +1 more source

Micrometeorological and Thermal Control of Frost Flower Growth and Decay on Young Sea Ice [PDF]

ARCTIC, 2015
(Received 22 April 2014; accepted in revised form 20 June 2014) ABSTRACT. Frost flowers are transient crystal structures that form on new and young sea ice surfaces. They have been implicated in a variety of biological, chemical, and physical processes and interactions with the atmosphere at the sea ice surface.
Galley, Ryan J., Else, Brent G. T., Geilfus, Nicolas-Xavier, Hare, Alexander A., Babb, David, Papakyriakou, Tim, Barber, David G., Rysgaard, Soren   +7 more
openaire   +2 more sources

Physical and morphological properties of first-year Antarctic sea ice in the spring marginal ice zone of the Atlantic-Indian sector

Journal of Glaciology, 2023
This study presents the first dataset of physical and textural properties of sea ice collected in the South Atlantic and Indian Ocean sector of the Antarctic marginal ice zone (MIZ).
Siobhan Johnson, Riesna R. Audh, Wayne de Jager, Boitumelo Matlakala, Marcello Vichi, Ashleigh Womack, Tokoloho Rampai   +6 more
doaj   +1 more source

Observations of exponential wave attenuation in Antarctic sea ice during the PIPERS campaign

Annals of Glaciology, 2020
Quantifying the rate of wave attenuation in sea ice is key to understanding trends in the Antarctic marginal ice zone extent. However, a paucity of observations of waves in sea ice limits progress on this front.
Alison L. Kohout, Madison Smith, Lettie A. Roach, Guy Williams, Fabien Montiel, Michael J. M. Williams   +5 more
doaj   +1 more source

Mechanisms driving the asymmetric seasonal cycle of Antarctic Sea Ice in the CESM Large Ensemble

Annals of Glaciology, 2020
The yearly paired process of slow growth and rapid melt of some 15 million square kilometers of Antarctic sea ice takes place with a regular asymmetry; the process has been linked to the relationship of the position of the ice edge with the band of low ...
Clare Eayrs, Daiane Faller, David M. Holland   +2 more
doaj   +1 more source

Increased CO₂ uptake due to sea ice growth and decay in the Nordic Seas [PDF]

Journal of Geophysical Research: Oceans, 2009
The uptake rates of atmospheric CO2 in the Nordic Seas are among the highest in the world's oceans. This has been ascribed mainly to a strong biological drawdown, but chemical processes within the sea ice itself have also been suggested to play a role. The importance of sea ice for the carbon uptake in the Nordic Seas is currently unknown.
Rysgaard, S., Bendtsen, J., Pedersen, L. T., Ramløv, H., Glud, Ronnie Nøhr   +4 more
openaire   +4 more sources