Results 41 to 50 of about 270,103 (305)

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

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

Efficiency of artificial neural networks for glacier ice-thickness estimation: a case study in western Himalaya, India

open access: yesJournal of Glaciology, 2021
Knowledge of glacier volume is crucial for ice flow modelling and predicting the impacts of climate change on glaciers. Rugged terrain, harsh weather conditions and logistic costs limit field-based ice thickness observations in the Himalaya.
Mohd Anul Haq   +2 more
doaj   +1 more source

Airborne electromagnetic sea ice thickness sounding in shallow, brackish water environments of the Caspian and Baltic Seas [PDF]

open access: yes, 2006
Ice engineering projects often rely on the knowledge of ice thickness in shallow, brackish water like in the Baltic and Caspian Seas. By means of field data and model results, the paper shows that helicopter-borne electromagnetic induction measurements ...
Haas, Christian
core   +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

Drone Surveying of Volumetric Ice Growth in a Steep River

open access: yesFrontiers in Remote Sensing, 2021
Representative ice thickness data is essential for accurate hydraulic modelling, assessing the potential for ice induced floods, understanding environmental conditions during winter and estimation of ice-run forces. Steep rivers exhibit complex freeze-up
Einar Rødtang   +2 more
doaj   +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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