Results 251 to 260 of about 1,522 (283)
Some of the next articles are maybe not open access.

Radio echo sounding of sea ice

Ocean '74 - IEEE International Conference on Engineering in the Ocean Environment, 1974
1. Morphological structure and state (i.e. temperature, salinity) of drifting sea ice are discussed. 2. The results of laboratory and natural investigations of UHF electromagnetic characteristics ( and tg ) of drifting sea ice are given. The estimate of electromagnetic contrast on ice-sea water boundary is given. 3.
exaly   +2 more sources

The polarization of radio signals in the radio echo sounding of ice sheets

Journal Physics D: Applied Physics, 1977
The theory of the polarization and propagation of an electromagnetic wave in a birefringent medium is briefly reviewed. Particular attention is given to those aspects of the theory which relate to the radio echo sounding of ice sheets. Methods of determining the polarization state of a radar wave are discussed, and it is shown that in certain ...
exaly   +2 more sources

Progress report on radio echo sounding

Polar Record, 1967
This report is intended to summarize activities in radio echo sounding since the introductory paper which appeared in the Polar Record four years ago (Evans, 1963 a). The field work since that time is discussed in rough chronological order, with references to the sources of more detailed information and an assessment of the principal results.
S. Evans, D. J. Drewry, G. de Q. Robin
openaire   +2 more sources

Dry–Wet Bedrock Interface Detection by Radio Echo Sounding Measurements

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2010
In this paper a method to distinguish a wet or dry bedrock-ice interface is proposed. It is based on the analysis of Radio Echo Sounding (RES) measurements, a widely employed method for determining bedrock topography in Antarctica. In particular, the
Achille Zirizzotti   +2 more
exaly   +2 more sources

Airborne radio echo sounding of glaciers in Svalbard

Polar Record, 1980
During April–May 1980 the Scott Polar Research Institute (SPRI) and Norsk Polarinstitutt (NPI) conducted a joint programme of radio echo sounding (RES) in Svalbard. The principal aims were to evaluate the performance of SPRI 60 MHz echo sounding equipment of Svalbard glaciers, to measure ice thickness over a wide range of conditions, and to investigate
D. J. Drewry   +4 more
openaire   +1 more source

Airborne radio echo sounding of outlet glaciers in Greenland

International Journal of Remote Sensing, 1997
Abstract We used a coherent radar depth sounder operating at 150MHz to collect ice thickness data on outlet glaciers in northwestern Greenland. The radar data were collected in conjunction with laser surface elevation measurements and were tagged with GPS information for accurate geolocation.
C. Allen   +4 more
openaire   +1 more source

Antarctic airborne radio echo sounding, 1977–78

Polar Record, 1978
During the austral summer 1977–78 the Scott Polar Research Institute (SPRI) conducted a fifth season of airborne radio echo sounding in Antarctica as part of a joint project with the US National Science Foundation Division of Polar Programs (NSF-DPP) and the Technical University of Denmark (TUD).
D. J. Drewry, D. T. Meldrum
openaire   +1 more source

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