Search results
Results From The WOW.Com Content Network
Standard circular search pattern Circular search pattern modified to avoid twisting or fouling an umbilical or lifeline Pendulum search pattern along a wall. An underwater circular search is a procedure conducted by a diver moving around a fixed reference point, usually by swimming, at a series of distances (radii). The circular search is ...
Water surface searches are procedures carried out on or over the surface of a body of water with the purpose of finding lost vessels, persons, or floating objects, which may use one or more of a variety of search patterns depending on the target of the search, as the direction and rate of drift vary depending on the characteristics of the target and the water and weather conditions at the time.
Pages in category "Search patterns" ... Underwater searches; W. Water surface searches This page was last edited on 23 January 2024, at 09:00 (UTC ...
The most common forms of underwater search patterns are: Circular search; Jackstay search; Expanding square search; Ladder pattern search; The patterns are usually performed by divers in pairs or teams below the water, but they can also be conducted by use of a tender who may be a snorkeller at the surface, a person on a towing boat, or a ...
search pattern. See: Underwater searches. Systematic procedure for covering the search area sufficiently to be reasonably sure of finding a given target if it is there. Several patterns are in general use for underwater searches, depending on the target, the terrain, and available facilities. secondary drowning. Main article: Secondary drowning
In all cases the search pattern should completely cover the search area without excessive redundancy or missed areas. Overlap is needed to compensate for inaccuracy and sensor error, and may be necessary to avoid gaps in some patterns. Diver searches: Circular search; Pendulum search; Jackstay searches. Snag-line search; Compass searches ...
Nav finder and underwater compass – basic underwater navigation tools Suunto SK-7 diving compass in aftermarket wrist mount with bungee straps. Diver navigation, termed "underwater navigation" by scuba divers, [1] is a set of techniques—including observing natural features, the use of a compass, and surface observations—that divers use to navigate underwater.
Bayesian search theory is the application of Bayesian statistics to the search for lost objects. It has been used several times to find lost sea vessels, for example USS Scorpion , and has played a key role in the recovery of the flight recorders in the Air France Flight 447 disaster of 2009.