Laserfiche WebLink
<br />31 <br /> <br />analytical assumptions. Also, it was noted earlier that there were no <br /> <br />~ <br /> <br />observations (other than daily precipitation) made between Camp Hale and <br /> <br />the ridge top where the strongest orographic lifting takes place. Thus, <br /> <br />unobserved snow may be falling downwind of Camp Hale. Still, with these <br /> <br />qualifications, good qualitative agreement is obtained between the ob- <br /> <br />served snowfall and the computed snowfall of Figure l3b. <br /> <br />To obtain the average precipitation (or condensation) per unit area <br /> <br />the values presented in Figure 13 must be divided by the length of in- <br /> <br />terval involved. The assumption has been made that all condensation, <br /> <br />thus the precipitation, due to orographic lifting takes place between <br /> <br />Minturn and the ridge top. This distance is about 4 x 106 cm (40 km.). <br /> <br />The result of dividing the precipitation values is presented in Table I. <br /> <br />Negative precipitation implies no prec:ipitation. The total condensation <br /> <br />per unit area is shown. Comparison of these results with the ground mea- <br /> <br />surements (Figure 10) is very difficult to make for this set of data. <br /> <br />The snow was light and the data taken between ten and fifteen hours after <br /> <br />the orographic snow. Frontal passage with snow in the afternoon of the <br /> <br />16th may also have effected the Fremont Pass data. <br /> <br />TABLE I <br /> <br />Cloud Base Precipitation and Total Condensation <br />From Figure l3b in Units of Grams Hour-l cm-2 <br /> <br />15 - 16 January, 1970 <br /> <br />Time <br /> <br />0900 <br /> <br />1200 <br /> <br />1500 <br /> <br />1800 <br /> <br />2100 <br /> <br />0000 <br /> <br />Precipitation <br /> <br />0.12 <br /> <br />0.09 <br /> <br />0.08 <br /> <br />0.00 <br /> <br />0.00 <br /> <br />0.01 <br /> <br />Condensation <br /> <br />0.13 <br /> <br />0.10 <br /> <br />0.09 <br /> <br />0.00 <br /> <br />0.02 <br /> <br />0.05 <br />