Tropical Year

Science / Tides and Currents / Tropical Year: The average period of the revolution of the Earth around the Sun with respect to the vernal equinox. Its length is approximately 3 65.242,2 days. The tropical year determines the cycle of changes in the seasons, and is the unit to which the calendar year is adjusted through the occasional introduction of the extra day on leap years.
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Tropical Air Mass

Science / Weather / Tropical Air Mass: An air mass that forms in the tropics or subtropics over the low latitudes. Maritime tropical air is produced over oceans and is warm and humid, while continental tropical air is formed over arid regi MORE


Science / Marine Biology / Tropical: Being within the latitudinal zone bounded by the two tropics (23ยบ 27' north and south latitude) MORE

Tropical Cyclone

Science / Weather / Tropical Cyclone: A warm core low pressure system which develops over tropical, and sometimes subtropical, waters, and has an organized circulation. Depending on sustained surface winds, the system is classified as a t MORE