# 露点

## 露點計算

${\displaystyle T_{d}={\frac {b\ \gamma (T,RH)}{a-\gamma (T,RH)}}}$

${\displaystyle \gamma (T,RH)={\frac {a\ T}{b+T}}+\ln(RH/100)}$

${\displaystyle a=17.27}$
${\displaystyle b=237.7}$

0℃ < ${\displaystyle T}$  < 60℃
1% < ${\displaystyle RH}$  < 100%
0℃ < ${\displaystyle T_{d}}$  < 50℃

### 簡易近似法

${\displaystyle T_{d}=T-{\frac {(100-RH)}{5}}}$

${\displaystyle RH=100-5(T-T_{d})}$

## 參考資料

1. ^ Michael J. Padilla. Science Explorer Weather and Climate [科学探索者：天气与气候]. 徐建春、郑升譯. 普林帝斯霍爾（原著）/浙江教育出版社（中譯版）. ISBN 7533845773 （中文（中国大陆））.
2. ^ Burt, Christopher C. [http://books.google.com/books?id=NuP7ATq9nWgC&dq=extreme+weather+a+guide+%26+record+book&printsec=frontcover&source=web&ots=4J6MZ9mIed&sig=072E15wny3Si3PGl3V6fkQnMrR0#PPA28,M1 Extreme Weather: A Guide & Record Book]. W. W. Norton & Company. 2004: 28. ISBN 0393326586. 外部链接存在于|title= (帮助)
3. ^ Digiquartz® Dew Point Calculation. [2008年7月6日]. （原始内容存档于2014年10月3日） （英语）.
4. ^ M. G. Lawrence, "The relationship between relative humidity and the dew point temperature in moist air: A simple conversion and applications", Bull. Am. Meteorol. Soc., 86, 225-233, 2005