Results 31 to 40 of about 25,086 (259)

Ice‐Front Retreat Controls on Ocean Dynamics Under Larsen C Ice Shelf, Antarctica

Geophysical Research Letters, 2023
Iceberg A‐68 separated from the Larsen C Ice Shelf in July 2017 and the impact of this event on the local ocean circulation has yet to be assessed.
M. Poinelli, Y. Nakayama, E. Larour, M. Vizcaino, R. Riva   +4 more
doaj   +1 more source

The DOE E3SM v1.2 Cryosphere Configuration: Description and Simulated Antarctic Ice‐Shelf Basal Melting

Journal of Advances in Modeling Earth Systems, 2022
The processes responsible for freshwater flux from the Antarctic Ice Sheet (AIS), ice‐shelf basal melting and iceberg calving, are generally poorly represented in current Earth System Models (ESMs).
Darin Comeau, Xylar S. Asay‐Davis, Carolyn Branecky Begeman, Matthew J. Hoffman, Wuyin Lin, Mark R. Petersen, Stephen F. Price, Andrew F. Roberts, Luke P. Van Roekel, Milena Veneziani, Jonathan D. Wolfe, Jeremy G. Fyke, Todd D. Ringler, Adrian K. Turner   +13 more
doaj   +1 more source

Getz Ice Shelf melt enhanced by freshwater discharge from beneath the West Antarctic Ice Sheet [PDF]

The Cryosphere, 2020
Antarctica's Getz Ice Shelf has been rapidly thinning in recent years, producing more meltwater than any other ice shelf in the world. The influx of fresh water is known to substantially influence ocean circulation and biological productivity, but ...
W. Wei, D. D. Blankenship, J. S. Greenbaum, N. Gourmelen, C. F. Dow, T. G. Richter, C. A. Greene, D. A. Young, S. Lee, T.-W. Kim, W. S. Lee, K. M. Assmann, K. M. Assmann   +12 more
doaj   +1 more source

Ice Velocity Variations of the Cook Ice Shelf, East Antarctica, from 2017 to 2022 from Sentinel-1 SAR Time-Series Offset Tracking

Remote Sensing, 2023
The Cook Glacier drains a significant portion of the Wilkes Subglacial Basin, the largest subglacial basin in East Antarctica—which feeds the Cook Ice Shelf.
Siung Lee, Seohyeon Kim, Hyunjun An, Hyangsun Han   +3 more
doaj   +1 more source

Effects of calving and submarine melting on steady states and stability of buttressed marine ice sheets

Journal of Glaciology, 2022
Mass loss from ice shelves is a strong control on grounding-line dynamics. Here we investigate how calving and submarine melt parameterizations affect steady-state grounding-line positions and their stability.
Marianne Haseloff, Olga V. Sergienko
doaj   +1 more source

Ice-shelf Response to Ice-stream Discharge Fluctuations: II. Ideal Rectangular Ice Shelf [PDF]

Journal of Glaciology, 1988
Abstract Abstract. Ice-shelf thickness and velocity anomalies resulting from ice-stream discharge fluctuations are calculated for an ideal ice shelf fed by a single ice stream and confined within a rectangular coastal geometry. Ice-shelf response to periodic forcing is found to be linear (thickness and velocity anomalies oscillate at ...
Douglas R. Macayeal, Manfred A. Lange
openaire   +3 more sources

Ephemeral grounding on the Pine Island Ice Shelf, West Antarctica, from 2014–2023 [PDF]

The Cryosphere
Ephemeral grounding refers to the intermittent contact between an ice shelf and elevated seafloor features. The evolution of ephemeral grounding of an ice shelf can affect buttressing, alter ice flow dynamics, and influence ice shelf stability. Long-term
Y. Chien, Y. Chien, Y. Chien, C. Zhou, C. Zhou, C. Zhou, S. Sun, Y. Chen, Y. Chen, Y. Chen, T. Wang, T. Wang, T. Wang, B. Zhang, B. Zhang, B. Zhang   +15 more
doaj   +1 more source

Ice-shelf basal melting in a global finite-element sea-ice/ice-shelf/ocean model [PDF]

Annals of Glaciology, 2012
AbstractThe Finite Element Sea-ice Ocean Model (FESOM) has been augmented by an ice-shelf component with a three-equation system for diagnostic computation of boundary layer temperature and salinity. Ice-shelf geometry and global ocean bathymetry have been derived from the RTopo-1 dataset.
Timmermann, R., Q. Wang, and H. H. Hellmer   +3 more
openaire   +1 more source

Portable Molecularly Imprinted Polymer Sensor for Rapid Swab‐Based Detection of Norovirus

Advanced Healthcare Materials, EarlyView.
This work reports a rapid, portable smartphone‐based sensor capable of detecting four norovirus genotypes from swab samples within 15 min. Sensor selectivity was validated through evaluation against four common live viruses. The swab‐based sampling process enabled simple sample preparation combined with the compact detection system, supporting use of ...
Amy Dann, Pankaj Singla, Minji Kim, Sloane Stoufer, Clare Thomas, Robert D. Crapnell, Craig E. Banks, Jake McClements, Shayan Seyedin, Mark Geoghegan, Samuel T. Jones, Christopher F. Blanford, Matthew D. Moore, Marloes Peeters   +13 more
wiley   +1 more source

Calving cycle of the Brunt Ice Shelf, Antarctica, driven by changes in ice-shelf geometry [PDF]

The Cryosphere, 2019
Abstract. Despite the potentially detrimental impact of large-scale calving events on the geometry and ice flow of the Antarctic Ice Sheet, little is known about the processes that drive rift formation prior to calving, or what controls the timing of these events.
Jan De Rydt, Gudmundur Hilmar Gudmundsson, Thomas Nagler, Jan Wuite   +3 more
openaire   +3 more sources