A harbor where the desired protection from wind and sea is obtained from breakwaters, moles, jetties, or other man-made works.
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HALF-TIDE BASIN
A lock of very large size and usually of irregular shape, the gates of which are kept open for several hours after high tide so that vessels may enter as long as there is sufficient depth over the sill. Vessels remain in the half-tide basin until the ensuing flood tide before they may pass through the gate to the inner harbor. If entry to the inner harbor is required before this time, water must be admitted to the half-tide basin from some external source.
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TO HAUL
To change the course of a sailing vessel to bring the wind farther forward, usually used with up, such as haul up.
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HEAD WIND
Wind from ahead of the vessel
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HARMATTAN
The dry, dusty trade wind blowing off the Sahara Desert across the Gulf of Guinea and the Cape Verde Islands. Sometimes called the DOCTOR, because of its supposed healthful properties.
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GUST
1. A sudden brief increase in the speed of the wind of more transient character than a squall, and followed by a lull or slackening of the wind. 2. The violet wind or squall that accompanies a thunder- storm.
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HABITAT SANCTUARY
A marine sanctuary established for the preservation, protection and management of essential or specialized habitats representative of important marine systems.
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CHILL FACTOR
Calculated number based on temperature and wind velocity.
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ICE RIND
A brittle shiny crust of ice formed on a quiet surface by direct freezing or from grease ice, usually in water of low salinity. Of thickness to about 5 centimeters, ice rind is easily broken by wind or swell, commonly breaking into rectangular pieces.
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HURRICANE
Wind of force 12 (64 knots and higher or 73 miles per hour and higher) on the Beaufort wind scale.
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INNER HARBOR
The part of a harbor most remote from the sea, as con- trasted with the OUTER HARBOR. These expressions are usually used only in a harbor that is clearly divided into two parts by a narrow passageway or man-made structures.
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