Results 41 to 50 of about 519,963 (333)

Application of a two-step approach for mapping ice thickness to various glacier types on Svalbard [PDF]

open access: yesThe Cryosphere, 2017
The basal topography is largely unknown beneath most glaciers and ice caps, and many attempts have been made to estimate a thickness field from other more accessible information at the surface.
J. J. Fürst   +14 more
doaj   +1 more source

Antarctic ice shelf thickness change from multimission lidar mapping [PDF]

open access: yesThe Cryosphere, 2019
We calculate rates of ice thickness change and bottom melt for ice shelves in West Antarctica and the Antarctic Peninsula from a combination of elevation measurements from NASA–CECS Antarctic ice mapping campaigns and NASA Operation IceBridge corrected ...
T. C. Sutterley   +5 more
doaj   +1 more source

Measuring sea ice through thick and thin [PDF]

open access: yesScience, 2014
Climate Change Sea ice in the Arctic's Fram Straight is only half as thick as it was a decade ago, Renner and colleagues report. Measuring ice both at the surface and from the air with an instrument towed below a helicopter, they found that the ice in that region thinned by more than 50% between 2003 and 2012.
openaire   +1 more source

Near-margin ice thickness and subglacial water routing, Leverett Glacier, Greenland

open access: yesArctic, Antarctic, and Alpine Research, 2018
Ice thickness measurements near the margin of the Greenland Ice Sheet (GrIS) are relatively sparse, presenting issues for modeling ice-flow dynamics, ice-sheet change, and subglacial hydrology.
Neil Ross   +4 more
doaj   +1 more source

Assessment of contemporary satellite sea ice thickness products for Arctic sea ice [PDF]

open access: yesThe Cryosphere, 2019
Advances in remote sensing of sea ice over the past two decades have resulted in a wide variety of satellite-derived sea ice thickness data products becoming publicly available.
H. Sallila   +3 more
doaj   +1 more source

The Influence of Snow and Ice Albedo towards Improved Lake Ice Simulations

open access: yesHydrology, 2021
Lake ice models are a vital tool for studying the response of ice-covered lakes to changing climates throughout the world. The Canadian Lake Ice Model (CLIMo) is a one-dimensional freshwater ice cover model that simulates Arctic and sub-Arctic lake ice ...
Alexis L. Robinson   +2 more
doaj   +1 more source

Radiometric analysis of digitized Z-scope records in archival radar sounding film

open access: yesJournal of Glaciology, 2022
The earliest airborne geophysical campaigns over Antarctica and Greenland in the 1960s and 1970s collected ice penetrating radar data on 35 mm optical film. Early subglacial topographic and englacial stratigraphic analyses of these data were foundational
Dustin M. Schroeder   +5 more
doaj   +1 more source

Comparison of Freeboard Retrieval and Ice Thickness Calculation From ALS, ASIRAS, and CryoSat-2 in the Norwegian Arctic to Field Measurements Made During the N-ICE2015 Expedition

open access: yes, 2018
We present freeboard measurements from airborne laser scanner (ALS), the Airborne Synthetic Aperture and Interferometric Radar Altimeter System (ASIRAS), and CryoSat-2 SIRAL radar altimeter; ice thickness measurements from both helicopter-borne and ...
Jennifer King   +8 more
semanticscholar   +1 more source

Retrieval of daily sea ice thickness from AMSR2 passive microwave data using ensemble convolutional neural networks

open access: yesGIScience & Remote Sensing, 2021
Recently, measurement of sea ice thickness (SIT) has received increasing attention due to the importance of thinning ice in the context of global warming.
J. Chi, Hyun‐cheol Kim
semanticscholar   +1 more source

Optimization of a sea ice model using basinwide observations of Arctic sea ice thickness, extent, and velocity [PDF]

open access: yes, 2006
A stand-alone sea ice model is tuned and validated using satellite-derived, basinwide observations of sea ice thickness, extent, and velocity from the years 1993 to 2001. This is the first time that basin-scale measurements of sea ice thickness have been
Cresswell, Douglas J.   +3 more
core   +1 more source

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