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Estimation of relative humidity by using AMeDAS data


, : Estimation of relative humidity by using AMeDAS data. Annals of the Phytopathological Society of Japan 58(3): 473-475

A new method (HUMIDAS) for estimating relative humidity from data of AMeDAS (Automated Meteorological Data Acquisition System) was developed by multiple regression analysis. In this method, relative humidity (Y) for a 3-hr period is expressed as follows: Y = AX-1 + BX-2 + CX-3 + DX-4 + EX-5 + F. X-1 = temperature, X-2 = precipitation, X-3 = wind velocity, X-4 = shining hour and X-5 = range of temperature. The A-E values are regression coefficients and F is a constant. The relative humidity actually observed agreed well with the estimated values.

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