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Spring, also known as springtime, is one of the four temperate seasons, succeeding winter and preceding summer. There are various technical definitions of spring, but local usage of the term varies according to local climate, cultures and customs. When it is spring in the Northern Hemisphere, it is autumn in the Southern Hemisphere and vice versa.
Meteorologists consider this fluctuation a part of meteorological spring, which begins March 1. The spring season associated with the vernal equinox, called astronomical spring, occurs on or ...
A season is a division of the year [ 1 ] based on changes in weather, ecology, and the number of daylight hours in a given region. On Earth, seasons are the result of the axial parallelism of Earth's tilted orbit around the Sun. [ 2 ][ 3 ][ 4 ] In temperate and polar regions, the seasons are marked by changes in the intensity of sunlight that ...
A quick look at the calendar shows the first day of spring, landing in mid-March, is right around the corner. But, did you know it also starts on March 1?
Most people are familiar with the astronomical version of spring when it begins during the vernal equinox on March 20. But have you ever heard of meteorological spring? Why do meteorologists ...
March equinox. The March equinox[7][8] or northward equinox[9] is the equinox on the Earth when the subsolar point appears to leave the Southern Hemisphere and cross the celestial equator, heading northward as seen from Earth. The March equinox is known as the vernal equinox (spring equinox) in the Northern Hemisphere and as the autumnal ...
There is a difference in the dates and benefits of meteorological and astronomical spring, this looks at those differences and the benefits. The difference between meteorological versus ...
Twilight. Twilight is the time period between dawn and sunrise, or between sunset and dusk. Morning twilight: astronomical, nautical, and civil stages at dawn. The apparent disk of the Sun is shown to scale. [1] Evening twilight: civil, nautical, and astronomical stages at dusk. The solar disk is shown to scale.