An Evaluation of the Capability of the Surface Condition Analyzer (SCAN) Sensors to Measure Runway Water Depth.
Final rept. Mar 81-Jan 86,
ARVIN/CALSPAN ADVANCED TECHNOLOGY CENTER BUFFALO NY
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Field tests of Surface Systems, Inc.s Surface Condition Analyzers SCAN capability to measure runway water depth during rainfall events were performed at the Spirit of St. Louis Airfield, St. Louis, Mo., during March-May of 1985. These limited tests were scheduled to provide data in real rainfall events and to answer questions of sensor capability relative to true runway water depth and or sensor installation and siting protocol--i.e., should the sensor surface be horizontal or flush relative to a sloping runway surface. Field calibration checks showed that sensors installed in the runway surface can measure in-situ water depth in the range 0.030 to 0.40 inches or 0.01 inches. In real rainfall with rates ranging from 0.30 incheshour very light to 6.0 incheshour heavy, it was found that the sensor-measured water depth correlated very well with an independently measured water depth over the range 0.03 to 0.10 inches maximum observed. At the lower end of this range, both sensors measured the same water depth, while at the top end, the sloping, flush-mounted sensor indicated only about 75 of the water depth measured independently and by the horizontally mounted sensor.
- Terminal Flight Facilities
- Test Facilities, Equipment and Methods