l**a
发帖数: 12455 | 1 这就是为什么天气预报气温只有20度左右，却感觉像27、8度要穿单衣
原因：
http://content.answers.com/main/content/realfeel.html
What is The RealFeel Temperature?
The RealFeel Temperature is an index that describes what the tempe
rature really feels like. It is a unique composite of the effects of t
emperature, wind, humidity, sunshine intensity, cloudiness, precipitat
ion and elevation on the human body--everything that affects how warm
or cold a person feels.
Temperature by itself gives only part of the picture. Other measur
es, like the Wind Chill or Heat Index, include temperature and only on
e additional element like wind speed or humidity and many are designed
to measure effects on an inanimate object or an unclothed person. Non
e of them tell what it really feels like to an appropriately dressed p
erson. Only The RealFeel Temperature includes everything that affects
how warm or cold a person feels.
Give me an example of The RealFeel Temperature
For example, on a steamy July day without a breath of wind, with t
he noon sun beating down, the official temperature (which is measured
in the shade) may be 92 degrees. But when you stand outside in the sco
rching sun, it may feel like 118 degrees. In contrast, when the offici
al temperature is 92 degrees with a nice breeze blowing and low humidi
ty, with bright sunshine but late in the day so the sun intensity is n
ot as strong, it may feel like 86 degrees. |
|
