The detection and validation of sub-ice water systems through coupled airborne radar/lidar investigations

Details The detection and validation of sub-ice water systems through coupled airborne radar/lidar investigations The detection and validation of sub-ice water systems through coupled airborne radar/lidar investigations

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufm.p33d..03b&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #P33D-03

Physics

0794 Instruments And Techniques, 1621 Cryospheric Change (0776), 1827 Glaciology (0736, 0776, 1863), 9805 Instruments Useful In Three Or More Fields

Scientific paper

Detecting water systems beneath the polar caps of Earth and Mars is critical to understanding the response of these ice caps to climate change as well to determining their suitability for sustaining life. Because substantial thicknesses of ice are easily penetrated by radars operating at frequencies of 10's to 100's of MHz, radar echoes can be used to establish the composition and roughness of materials at the basal interface. In particular, the high dielectric contrast between liquid water and glacial ice makes liquid water highly reflective. However, in cases of moderate to severe basal roughness and poorly known dielectric losses along the path of propagation, sub-ice water-system detection using radar alone can be equivocal. Using airborne data collected over the West Antarctic ice sheet, we show that new ice-penetrating radar technology and analysis techniques allow the direct detection of sub-ice water under certain favorable circumstances; i.e. with minimum basal roughness and when dielectric losses through the ice column can be reliably established. We also show that surfaces of constant basal hydraulic potential derived from simultaneous airborne lidar observations of ice surface geometry are essential to validate more tentatively identified water systems.

Affiliated with

Also associated with

No associations

Rating

The detection and validation of sub-ice water systems through coupled airborne radar/lidar investigations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The detection and validation of sub-ice water systems through coupled airborne radar/lidar investigations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The detection and validation of sub-ice water systems through coupled airborne radar/lidar investigations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-749748