WIND ROSE—Any one of a class of diagramsdesigned to show the distribution of wind directionexperienced at a given location over a considerableperiod; it thus shows the prevailing wind direction.The most common form consists of a circle fromwhich 8 or 16 lines emanate,one for each compasspoint. The length of each line is proportional to thefrequency of wind from that direction, and thefrequency of calm conditions is entered in thecenter.WINTER SOLSTICE—For either hemisphere, thesolstice at which the Sun is above the oppositehemisphere. In northern latitudes, the time of thisoccurrence is approximately 22 December.AI-11
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