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Sigma KEE - SeasonOfYear
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
season of year
SeasonOfYear is the class of four seasons correlated with the calendar Year and associated with changes in the length of daylight and with overall temperature changes. Depending upon the GeographicArea, a SeasonOfYear may also be associated with weather patterns (e.g., rainy, dry, windy). The characteristics of seasons (cold vs. hot temperatures, long vs. short days) are reversed from the NorthernHemisphere to the SouthernHemisphere.
Relationships      
Parents time interval An interval of time. Note that a TimeInterval has both an extent and a location on the universal timeline. Note too that a TimeInterval has no gaps, i.e. this class contains only convex time intervals.
Children fall seasonThe SeasonOfYear that begins at the autumnal equinox and ends at the winter solstice.
 spring seasonThe SeasonOfYear that begins at the spring equinox and ends at the summer solstice. SpringSeason is the class of TimeIntervals associated with the calendar months of March through May.
 summer seasonThe SeasonOfYear that begins at the summer solstice and ends at the autumnal equinox.
 winter seasonThe SeasonOfYear that begins at the winter solstice and ends at the spring equinox.


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