Results 21 to 30 of about 268,002 (304)

Glacier thickness and volume estimation in the Upper Indus Basin using modeling and ground penetrating radar measurements

open access: yesAnnals of Glaciology, 2023
In the Himalaya, ice thickness data are limited, and field measurements are even scarcer. In this study, we employed the GlabTop model to estimate ice reserves in the Jhelum (1.9 ± 0.6 km3) and Drass (2.9 ± 0.9 km3) sub-basins of the Upper Indus Basin ...
Shakil Ahmad Romshoo   +3 more
doaj   +1 more source

Ice thickness, volume and subglacial relief of Djankuat Glacier (Central Caucasus)

open access: yesЛëд и снег, 2015
In this paper we present and discuss results of radio-echo sounding and modelling of ice thickness of the Djankuat Glacier. This glacier is the reference one for the Central Caucasus and was earlier studied comprehensively, but direct ice thickness ...
I. I. Lavrentiev   +4 more
doaj   +1 more source

A sea-ice thickness retrieval model for 1.4 GHz radiometry and application to airborne measurements over low salinity sea-ice [PDF]

open access: yesThe Cryosphere, 2010
In preparation for the European Space Agency's (ESA) Soil Moisture and Ocean Salinity (SMOS) mission, we investigated the potential of L-band (1.4 GHz) radiometry to measure sea-ice thickness.
L. Kaleschke   +5 more
doaj   +1 more source

Crevasse-induced Rayleigh-wave azimuthal anisotropy on Glacier de la Plaine Morte, Switzerland

open access: yesAnnals of Glaciology, 2019
Crevasses and englacial fracture networks route meltwater from a glacier's surface to the subglacial drainage system and thus influence glacial hydraulics.
Fabian Lindner   +3 more
doaj   +1 more source

Bias-corrected estimates of glacier thickness in the Columbia River Basin, Canada

open access: yesJournal of Glaciology, 2020
Several global datasets of glacier thickness exist, but the number of observations from western Canada are sparse and spatially biased. To supplement these limited observations, we measured ice thickness with ice penetrating radar on five glaciers in the
Ben M. Pelto   +4 more
doaj   +1 more source

Coherent radar ice thickness measurements over the Greenland ice sheet [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2001
We developed two 150‐MHz coherent radar depth sounders for ice thickness measurements over the Greenland ice sheet. We developed one of these using connectorized components and the other using radio frequency integrated circuits (RFICs). Both systems are designed to use pulse compression techniques and coherent integration to obtain the high ...
Gogineni, Sivaprasad   +9 more
openaire   +2 more sources

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

Application of GNSS Interferometric Reflectometry for the Estimation of Lake Ice Thickness

open access: yesRemote Sensing, 2020
Lake ice thickness is a sensitive indicator of climate change largely through its dependency on near-surface air temperature and on-ice snow mass (depth and density). Monitoring of the seasonal variations and trends in ice thickness is also important for
Yusof Ghiasi   +6 more
doaj   +1 more source

Interannual variability in Transpolar Drift summer sea ice thickness and potential impact of Atlantification [PDF]

open access: yesThe Cryosphere, 2021
Changes in Arctic sea ice thickness are the result of complex interactions of the dynamic and variable ice cover with atmosphere and ocean. Most of the sea ice exiting the Arctic Ocean does so through Fram Strait, which is why long-term measurements of ...
H. J. Belter   +16 more
doaj   +1 more source

Sea-ice thickness measurement based on the dispersion of ice swell

open access: yesThe Journal of the Acoustical Society of America, 2012
The dispersion of flexural waves propagating in the Arctic sea ice cover is exploited in order to locally measure the ice thickness. The observed dispersion, for waves filtered in the 4–20 s period interval, at up to 4 broad-band seismometers deployed in Spring 2007 near the North Pole, is compared to a parameterized model that accounts for a complex ...
Marsan, David   +3 more
openaire   +5 more sources

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