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ASL Environmental Sciences Device / Instrument

Ice Profiling Sonar (IPS)

Seabed-mounted upward-looking sonar for accurate long-term ice draft and ice keel measurement in polar environments.

Description

Introduced by ASL in 1996, the IPS is an upward-looking sonar mounted above the ocean floor that measures ice draft, keels and level ice for estimating ice forces, production rates and mass balances, supporting offshore and coastal structure design, oceanographic research and climate studies. It is used in the Beaufort, Chukchi, Okhotsk, Caspian and Greenland Seas, among others. Deployment on bottom or taut-line moorings.

Key features

  • Operating frequency 420 kHz; half-beam width 0.9 degrees
  • Sampling up to 2 Hz; range 240 m (ice), up to 310 m (water)
  • 2 x 512 GB SD cards; 0.17m diameter x 1.0m length

Applications

Ice draft and keel data for offshore and coastal structure design, oceanographic research and climate studies in ice-covered seas.

Specifications

Operating frequency420 kHz
Half-beam width0.9 degrees
Sampling rateup to 2 Hz
Range240 m (ice), up to 310 m (water)
Storage2X512 GB SD Cards
Size0.17m diameter x 1.0m length

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