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Processed bed elevation picks from airborne radar depth sounding across the Dufek Massif, Pensacola Mountains (1998/99 season)
GB/NERC/BAS/PDC/01344

Summary

Abstract:
A British Antarctic Survey Twin Otter and survey team acquired 8,300 line-km of aerogeophysics data during the Austral summer of 1998/99. Gravity and radio-echo data were acquired simultaneously with the magnetic data at a compromise constant barometric height of 2,200 m, which provides a terrain clearance of 100 m over the highest peaks. Two separate surveys were conducted; one at 5 km line spacing (tie lines at 20 km) over and stretching beyond the southern extent of the Forrestal range (main survey), and one at 2 km line spacing (tie lines at 8 km) covering the Dufek Massif (detailed survey).

Ashtech Z12 dual frequency GPS receivers were used for survey navigation. Pseudorange data were supplied to a Picodas PNAV navigation interface computer, which was used to guide the pilot along the pre-planned survey lines. The actual flight path was recovered, using carrier-phase, continuous, kinematic GPS processing techniques. All pseudorange navigation data were recorded at 1 Hz on a Picodas PDAS 1000, PC-based data acquisition system.

We present here the processed bed elevation picks from airborne radar depth sounding collected using the BAS PASIN radar system.
Data are provided as XYZ ASCII line data.

Keywords:
Aerogeophysics, Antarctica, Radar, Surface elevation

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