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ASL - Shallow Water Ice Profiler (SWIP)
An upward-looking sonar device, mounted on the lake/river/ocean floor to accurately measure ice draft in shallow water environments.
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The Shallow Water Ice Profiler (SWIP) is a real-time acoustic ice thickness measurement (ice draft) instrument for shallow water applications. The underwater components include a low-cost acoustic transducer, a tilt sensor, a high-precision pressure sensor and a temperature sensor, all providing suitably high resolution for shallow water measurements.
The instrument can be operated in an internal recording mode with a connection to an underwater battery pack for power, or with RS-422 serial output for real-time operation using an underwater cable which also allows for external power.
- Operating frequency 542 kHz (or 235 kHz)
- Half-beam width 3.0 degrees (or 5.5 deg)
- Sampling rate up to 2 Hz
- Range 20 m
- Standard 8 GB Compact Flash
- Optional 16 GB Compact Flash
- 40 Ahr, 200Ahr battery or external power options
- Custom shore based data management system for SWIP and ADCP available
- Mounting design assistance and equipment is available upon request
- SWIP comes in a ruggedized shipping/storage case