Accession Number:

ADA031306

Title:

Airborne Sea Ice Thickness Profiling Using an Impulse Radar.

Descriptive Note:

Final rept.,

Corporate Author:

GEOPHYSICAL SURVEY SYSTEMS INC BURLINGTON MASS

Personal Author(s):

Report Date:

1975-06-01

Pagination or Media Count:

32.0

Abstract:

The remote measurement of sea ice thickness from a mobile platform has been a goal of researchers and organizations, such as the U.S. Coast Guard, for many years. Ice thickness data is needed over large areas for icebreakers operation and navigation. The objective of this contract is to evaluate a successful ground-based sea ice profiling radar when adapted to a helicopter platform. The electronic and recording equipment were mounted in a small helicopter and the radar antenna was slung on a rope 14 m. below the helicopter. The thickness of fresh water ice and sea ice was successfully measured in the Canadian Arctic near Inuvik, N.W.T. Over 50 km. of first-year sea ice were continuously profiled. The ice thickness varied from 0.5 m. to 2 m. and the wind-swept snow cover varied from zero to 0.3 m. In the traverse mode, sea ice thickness was continuously measured at an altitude of 40 m. and a speed of 65 kmhr. Theoretical considerations and experimental results are given. Author

Subject Categories:

  • Helicopters
  • Snow, Ice and Permafrost
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE