The Tropics

of these articles concerns itself with geographical ranges of the earth. Other meanings see Trope.
Noon in the Tropics, the sun stands nearly in the Zenith

the Tropics (v. gr.: tropai heliou sun turning areas) belong to the climate zones of the earth. Itradiation-climatically

  • regard the areas, which are limited by the two turning circles (23,5° northern and southern latitude) and in those the sun at least once in the year in the zenith stand , in
  • the system of the atmospheric circulation are the range between the two subtropical-edge-tropical high pressure belts of the north and Southern Hemisphere of the earth,
  • the range on both sides the equator, which by higher dailytemporal and smaller seasonal variations in temperature (25°C annual average) is coined/shaped, since by the all year round high irradiation no thermal seasons can form,
  • the rangewith that the annual daily lengths only small between 10,5 and 13,5 hours vary.

As polwärtige border of the Tropics to the subtropics Köppen used the 18°-Isotherme, Supan and Phlippson the 20°-Istherme of the coldest monthly. These demarcations refer however only upin addition, the warm tropics lain in small height over the sea level, the typical climatic characteristics of the Tropics apply to the areas lain more highly. Because of the temperature decrease with the height one speaks then, if the 18° or 20°-Isotherme is fallen below, butcomputationally a higher value would result, from the cold tropics.

Within the Tropics the near-equator perpetually damp of to the turning circles the alternating-wet become and/or. the dry Tropics differed, in different vegetation zones from the tropical rain forests over the different Savannentypenup to the tropical half deserts and deserts show.

Ektropen those areas are called, which in the Tropics, or because of whose peripheral area to be…

see also


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