List of Articles Relative Humidity (RH)

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  1 - Study of the relationship between relative humidity and the dewpoint depression in moist air on surface in period of five years (􀀕􀀓􀀓􀀗-􀀕􀀓􀀓􀀛) in stations of Mehrabad and North of Tehran
  R. Haroutounian
  In this study all tries have been done to simplify & to determine a linear relationbetween Relative Humidity and Dewpoint depression through the ClausiusClapeyron and the Relative Humidity Equations, and also by using dailyexperimental data in a period of􀀃􀀘 years More

  In this study all tries have been done to simplify & to determine a linear relationbetween Relative Humidity and Dewpoint depression through the ClausiusClapeyron and the Relative Humidity Equations, and also by using dailyexperimental data in a period of􀀃􀀘 years (􀀕􀀓􀀓􀀗- 􀀕􀀓􀀓􀀛) from Tehran meteorologystations of North (an elevation of 􀀔􀀘􀀗􀀜 meters above sea level) & of Mehrabad (anelevation of􀀃􀀔􀀔􀀜􀀔 meters above sea level). This outcome has been obtained undercondition of the atmosphere and geographical ambient of Tehran city. In result, theobtained linear Equation was RH=100-5.18(T-Td) which showed a decrease of Tdincrease of Dewpoint depression by about 1oC for every %􀀘􀀑􀀔􀀛 decrease in RH.Therefore, there were several efficient usages for presented simple linear Equation.One of them was to estimate cumulus cloud base level (LCL – lifting condensationlevel). Considering the ratio changes of RH with Dewpoint depression, linearEquation for estimating Cumulus cloud base level which is Zlcl = 125(T-Td)changed in the form of Zlcl = 24.13(100-RH) . Manuscript profile