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<br />26 <br /> <br />. <br /> <br />With the temperature profile known, a profile of mixing ratio is <br /> <br />easily found. However, measurements of relative humidity by the type <br /> <br />of radiosondes used in near saturated eonditions is known to be low <br /> <br />(Air Weather Service, 1955). To put the computed values to wTOP on <br /> <br />the same basis as the measured wFPY (the difference in mixing ratios, <br /> <br />not their magnitude, is important here) wTOP is multiplied by the Camp <br /> <br />Hale relative humidity time interpolated to the ridge top. (A minimum <br /> <br />value of 15% relative humidity was used where the radiosonde was motor <br /> <br />boating.) <br />With this modification of wTOP' equation (5) is used to estimate <br /> <br />downslope evaporation between TOP and Fairp1ay. The assumptions of <br /> <br />negligible cloud water and ice as well as the subjective determinations <br /> <br />of minimum trajectory pressure, and downslope evaporation computations <br /> <br />are incorporated into the analysis. Results of that analysis are pre- <br /> <br />sented in the following section. <br /> <br />. <br />