Results 171 to 180 of about 934 (207)

Geophysical parameters estimation with TerraSAR-X of outlet glaciers in the Transantarctic Mountains

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
We discuss TerraSAR-X observations of three Transantarctic Mountain (TAM) outlet glaciers: Byrd, Nimrod and Beardmore. High resolution TerraSAR-X data acquired over the area in late 2009 and late 2010 using left looking mode were processed to generate detailed 2D ice velocity maps by means of speckle tracking.
Floricioiu, Dana, Jezek, Kenneth, Bäßler, Michael, Abdel Jaber, Wael   +3 more
openaire   +2 more sources

Internal structure and trend of glacier change assessed by geophysical investigations

Environmental Earth Sciences, 2012
Ground-penetrating radar (GPR) is a useful tool for mapping the thickness, morphology and structure of alpine glaciers. Englacial information obtained during a field survey of the Koxkar Glacier in Tian Shan, China, in June 2008 was retrieved from GPR profile data.
Wu Zhen, Liu Shiyin, Zhang Shiqiang, Xiao Honglang   +3 more
openaire   +1 more source

Rapid melting of the terminal section of the Hooker Glacier (Mt Cook National Park, New Zealand)

New Zealand Journal of Geology, and Geophysics, 1998
An open access copy of this article is available from the publishers website.A 3 km long section of the Hooker Glacier near its terminus was studied in 1996 using GPS, tacheometric, and bathymetric surveys, as well as ground penetrating radar and gravity
Manfred P Hochstein, David C Nobes, Ian Owens   +2 more
exaly   +1 more source

Geophysical survey of Johnsons Glacier (Antarctica): Comparing seismic and RES data

SEG Technical Program Expanded Abstracts 2000, 2000
Seismic and radio-echo sounding data have been acquired along coincident profiles at the temperate Johnsons Glacier (Livingston Island, South Shetland Islands, Antarctica). Seismic data have been processed and the results provide information about ice-thickness and bedrock topography.
Beatriz Benjumea, Yuri Macheret, Teresa Teixidó, Carlos Martín, Francisco Navarro, Laia Ximenis   +5 more
openaire   +1 more source

Downwasting of the Tasman Glacier, South Island, New Zealand: Changes in the terminus region between 1971 and 1993

New Zealand Journal of Geology, and Geophysics, 1995
An open access copy of this article is available from the publishers website.Downwasting has altered the morphology of the terminus region of the Tasman Glacier between 1971 and 1993.
Manfred P Hochstein, Stuart Henrys, David C Nobes   +2 more
exaly   +1 more source

A Geophysical and Petrophysical Appraisal of a Possible Origin of Himalayan Rivers and Glaciers

Journal Geological Society of India, 1989
Abstract Recent investigations of the seismic, electrical conductivity and rheological structures of the continental crust favours the presence of a fluid-rich layer at the mid and lower crustal levels. Such layers may exhibit high electrical conductivity, seismic reflectivity and ductility.
openaire   +1 more source

Combination of conventional geophysical methods for sounding the composition of rock glaciers in the Swiss Alps

Permafrost and Periglacial Processes, 2006
AbstractThe composition of rock glaciers was sounded by a combination of conventional geophysical methods near the lower limit of mountain permafrost in the Swiss Alps. P‐wave velocity, direct current (DC) resistivity and year‐round ground surface temperatures were measured on 32 talus‐derived rock glaciers.
openaire   +1 more source

Ice thickness of the West Kunlun glaciers revealed by airborne geophysical survey

Glacier ice thickness models are fundamental to studies of glaciology, hydrology, and climatology. They play a key role in estimating ice volume, simulating future glacier evolution, and projecting meltwater runoff changes. However, ice thickness measurements (e.g., ice penetrating radar) only cover about 14% of global glacier area and disparity exists
Junjun Yang, Qing Shu
openaire   +1 more source

Deep learning multimodal methods for geophysical inversion : application to glacier ice thickness estimation

20th International Conference on Content-based Multimedia Indexing, 2023
Lopez Uroz, Lorenzo, Benoit, A, Yan, Yajing, Lin-Kwong-Chon, Christophe, Giffard-Roisin, Sophie, Rabatel, Antoine   +5 more
openaire   +2 more sources

Recent geophysical, geomorphological and geodetic surveys of Montasio occidentale glacier (Julian Alps, Italy)

2011
The glaciers of the European Alps are currently affected by large mass losses, due to unfavorable climatic conditions. Glacier areas and volumes rapidly decrease and the bedrock tends to outcrop, causing morphological changes and fragmentation of most ice bodies.
CARTURAN, LUCA, CALLIGARO, SIMONE, GUARNIERI, ALBERTO, MILAN N., FRANCESE R., MORO D., BALDASSI G., CARTON, ALBERTO, BONDESAN, ALDINO, TAROLLI, PAOLO, CAZORZI F., VETTORE, ANTONIO, DALLA FONTANA, GIANCARLO   +12 more
openaire   +1 more source