Equinoxes: The time at which the Sun passes directly overhead at the equator at noon.
Evaporation: The change of liquid water to water vapor.
Eye: The clear area of lowest pressure at the center of a strong tropical cyclone.
Equinoxes The first days of spring and autumn when day and night are of equal length at all latitudes (except the poles) and the noon sun is directly over the equator.
The declination is ~23°N at the summer solstice, ~23°S at the winter solstice, and 0° (over the equator) at the spring and autumn equinoxes.
season: a way of dividing up the calendar year according to regular occurrences such as the equinoxes and solstices. For example, in the Northern Hemisphere, from the vernal equinox to the summer solstice is Spring (March 21 to June21).
In the United States, the seasons are often considered to begin at the astronomical solstices and equinoxes: these are sometimes known as the "astronomical seasons".
Most often these are locations near the equator which measure more abundant rainfall at or shortly after the equinoxes (March and September), a period of high sun.
Climate change may result from such factors as changes in solar activity, long-period changes in the Earth's orbital elements (eccentricity, obliquity of the ecliptic, precession of equinoxes), natural internal processes of the climate system, ...
The latitude that the sun is directly over at a given time. The declination is ~23?Ǭ?N at the summer solstice, ~23?Ǭ?S at the winter solstice, and 0?Ǭ? (over the equator) at the spring and autumn equinoxes.
Deep Percolation Loss ...
A high latitude phenomenon observed around midsummer when the sun does not sink below the horizon throughout the 24 hour period; therefore the sun may be seen at midnight. At the poles, the midnight sun occurs from the Spring to Autumnal Equinoxes.
 See also: Period, Temperature, Equinox, Horizon, Water
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