Approximating the Precepitable Water of the Rising Air Parcel Using the Surface Meteorological Elements
نویسندگان
چکیده
Atmospheric precipitable water is a good indicator of the precipitation potential and is often used in the meteorological as well as hydrological studies relating to the precipitation. Normally precipitable water (Pw) is computed by using the lower tropospheric ( up to 400 hPa) temp data by plotting the temperature and dew point curves on the / T φ gram. The atmosphere is divided into suitable pressure levels (normally in relation to the standard atmospheric levels) and the mean mixing ratio of each small layer is then read out form the / T φ gram. The precipitable water of each layer is then found out by using the relationship
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