Post by 徿é²Post by schung就是humidity濕度的意思,只是氣象學家較喜歡用dew point表示。
但是電視中的 dew point, 單位是華式, 並不是濕度的單位耶..
露點
氣候方面的用字
http://www.doc.mmu.ac.uk/aric/eae/Weather/Older/Dew_Point.html
All air contains water vapour of varying quantities.
The dew point indicates the amount of moisture in the air.
The higher the dew point, the higher the moisture content of
the air at a given temperature. Conversely, the dew point of
humid air will be higher than the dew point of dry air.
Dew point temperature is defined as the temperature to which
the air would have to cool (at constant pressure and constant
water vapour content) in order to reach saturation. A state of
saturation exists when the air is holding the maximum amount of
water vapour possible at the existing temperature and pressure.
Condensation of water vapour begins when the temperature of air
is lowered to its dew point and beyond. The dew point, like other
measures of humidity, can be calculated from readings taken by a
hygrometer.
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* Post by mauro from TC210-202-210-82.adsl.pl.apol.com.tw
* Origin: ★ 交通大學資訊科學系 BBS ★ <bbs.cis.nctu.edu.tw: 140.113.23.3>