Results 1 to 10 of about 19,765 (94)

Seasonal Outflow of Ice Shelf Water Across the Front of the Filchner Ice Shelf, Weddell Sea, Antarctica. [PDF]

open access: yesGeophys Res Lett, 2018
AbstractThe ice shelf water (ISW) found in the Filchner Trough, located in the southern Weddell Sea, Antarctica, is climatically important; it descends into the deep Weddell Sea contributing to bottom water formation, and it blocks warm off‐shelf waters from accessing the Filchner ice shelf cavity.
Darelius E, Sallée JB.
europepmc   +7 more sources

Ice Shelf Water Structure Beneath the Larsen C Ice Shelf in Antarctica

open access: yesGeophysical Research Letters, 2023
AbstractUnderstanding ice shelf water (ISW) structure is crucial for studying the basal melting of ice shelves. In this study, we performed large‐eddy simulation experiments to assess ISW structure and basal melt patterns under different current velocity scenarios observed in the Larsen C ice shelf, Antarctica.
Ji Sung Na   +4 more
openaire   +3 more sources

Observations of the size distribution of frazil ice in an Ice Shelf Water plume [PDF]

open access: yesGeophysical Research Letters, 2020
The size distribution of frazil ice is currently unconstrained in ice shelf cavity modeling. Here we observe the time-dependent behavior of the number and size of frazil ice particles in an Ice Shelf Water plume. A novel acoustic scattering inversion was used to infer frazil ice crystal diameters, assuming a log-normal distribution.
Eamon K. Frazer   +4 more
openaire   +1 more source

Correction to “Ice Shelf Water plume flow beneath Filchner-Ronne Ice Shelf, Antarctica” [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2007
[1] In the paper ‘‘Ice Shelf Water plume flow beneath Filchner-Ronne Ice Shelf, Antarctica’’ by Paul R. Holland, Daniel L. Feltham, and Adrian Jenkins (Journal of Geophysical Research, 112 , C05044, doi :10 .1029/ 2006JG003915), there are two errors. In the abstract, the sentence ‘‘The model domain is defined from measurements of ice shelf draft, and ...
Holland, Paul R.   +2 more
openaire   +3 more sources

Frazil ice formation in an ice shelf water plume [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2004
We present a model for the growth of frazil ice crystals and their accumulation as marine ice at the base of Antarctic ice shelves. The model describes the flow of buoyant water upward along the ice shelf base and includes the differential growth of a range of crystal sizes.
Smedsrud, Lars H., Jenkins, Adrian
openaire   +4 more sources

The Effects of Rotation and Ice Shelf Topography on Frazil-Laden Ice Shelf Water Plumes [PDF]

open access: yesJournal of Physical Oceanography, 2006
Abstract A model of the dynamics and thermodynamics of a plume of meltwater at the base of an ice shelf is presented. Such ice shelf water plumes may become supercooled and deposit marine ice if they rise (because of the pressure decrease in the in situ freezing temperature), so the model incorporates both melting and freezing at the ice
Holland, Paul R., Feltham, Daniel L.
openaire   +2 more sources

Ice Shelf Water plume flow beneath Filchner‐Ronne Ice Shelf, Antarctica [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2007
A two‐dimensional plume model is used to study the interaction between Filchner‐Ronne Ice Shelf, Antarctica and its underlying ocean cavity. Ice Shelf Water (ISW) plumes are initiated by the freshwater released from a melting ice shelf and, if they rise, may become supercooled and deposit marine ice due to the pressure increase in the in situ freezing ...
Holland, Paul R.   +2 more
openaire   +3 more sources

On-shelf circulation of warm water toward the Totten Ice Shelf in East Antarctica

open access: yesNature Communications, 2023
AbstractThe Totten Glacier in East Antarctica, with an ice volume equivalent to >3.5 m of global sea-level rise, is grounded below sea level and, therefore, vulnerable to ocean forcing. Here, we use bathymetric and oceanographic observations from previously unsampled parts of the Totten continental shelf to reveal on-shelf warm water pathways ...
Daisuke Hirano   +18 more
openaire   +3 more sources

Measurements of Ice Shelf Water beneath the front of the Ross Ice Shelf using gliders [PDF]

open access: yesAnnals of Glaciology, 2017
ABSTRACTMeasurements made by an underwater glider deployed near the Ross Ice Shelf were used to identify the presence of Ice Shelf Water (ISW), which is defined as seawater with its potential temperature lower than its surface freezing point temperature.
Nelson, Monica J.S.   +5 more
openaire   +4 more sources

The response of sea ice and high salinity shelf water in the Ross Ice Shelf Polynya to cyclonic atmosphere circulations

open access: yesThe Cryosphere, 2022
Abstract. Coastal polynyas in the Ross Sea are important source regions of high salinity shelf water (HSSW) – the precursor of Antarctic Bottom Water that supplies the lower limb of the thermohaline circulation. Here, the response of sea ice production and HSSW formation to synoptic- and meso-scale cyclones were investigated for the Ross Ice Shelf ...
X. Wang   +7 more
openaire   +6 more sources

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