Air
temperature on land and over sea level is different, the difference
in air temperature properties can also be viewed in the valleys and
mountains, this can happen due influenced by the surrounding
environtment that gets sun radiation, air temperature properties
mainland during the day will quickly rise, due to the heat in the
earth's surface will be reflected back into space, but at night in
the mainland would quickly cool his temperature or vice versa, this
distinction affect air pressure and result in moving air or wind.
There
are several wind in indonesia, namely onshore wind, sea breeze,
mountain wind, valley wind, cyclones wind, anti-cyclones wind and
foehn wind. Onshore wind is wind that blow from land in to sea, and
can occur at night, while sea breeze is wind that blow from sea into
land and occur at noon, or afternoon, mountain wind is air that move
from mountain into valley and can occur at night, while valley wind
is air that move from valley into top and can occure at noon,
cyclones wind is air that moves from saveral area that have air hight
presure, into central spots that have the low air pressure,
anti-cyclones wind is air pressure into area that have the low air
pressure that arround it, foehn wind is wind that blow or down from
slopes of the mountains, the winds are dry and hot.
There
is saveral foehn wind in indonesia, namely gising wind, beetles wind,
brubu wind, wambrau wind, bahorok wind, and whirl wind. Gising wind
usually blow in probolinggo and pasuruan, and give possitive effect
to fertilization process at mangoes tree, beetles wind is usually
blow in tegal and brebes area and give possitive affect to red onion.
Brubu wind usually blow in makasar or ujung pandang. Wambau wind
usually blow in biak papua. Bahorok wind usually blow in deli, north
sumatera and give the negative effect because can demage the tobacco
leaves. Whirl wind usually blow in sangir-talaud north sulawesi.
