. Brigham Young University science bulletin. Biology -- Periodicals. 20 Bricham Young Univehsity Science Bulletin. MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY I \ i ._1 I I I 7) with the highest monthly amount of mm received during March 1971 and the lowest amount of mm recorded during May 1972. The yearly precipitation totals at the official Provo weather station (KOVO) were , , and mm, respectively, for the three years indicated (Table 10). Whereas the totals for 1970 and 1972 were quite similar for the two sites, the total amount recorded for 1971 at o
. Brigham Young University science bulletin. Biology -- Periodicals. 20 Bricham Young Univehsity Science Bulletin. MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY I \ i ._1 I I I 7) with the highest monthly amount of mm received during March 1971 and the lowest amount of mm recorded during May 1972. The yearly precipitation totals at the official Provo weather station (KOVO) were , , and mm, respectively, for the three years indicated (Table 10). Whereas the totals for 1970 and 1972 were quite similar for the two sites, the total amount recorded for 1971 at our station was more than twice that reported at KOVO. Even though the rainfall may be ir- regular in distribution for any one storm, such a discrepancy for an entire year's total is diffi- cult to explain. The fact that KOVO radio sta- tion is located more toward the center of Utah Valley, whereas our station is to the north and considerably closer to the surrounding moun- tains, may have contributed significantly to this difference. Also, since the main differences re- corded occurred during the months of March, October, November, and December of that year, some of the discrepancy may be attributed to the fact that different methods were em- ployed at the two stations to detcnnine the precipitation in snow. As mentioned above, we measured snowfall with an ordinary njler and calculated precipitation therein as one-tenth that of the depth of each snowfall. Official weather stations either invert the rain gauge cone over the new snow cover to the last preceding crust or collect snowfall directly into the rain gauge at 1 m height. The collected snow is then melted and the water content therein measured directly with the rain gauge ruler. Collection of snow in the rain gauge cannister at 1 m height is more subject to errors associated with concurrent wind movements, whereas reliability of our method suffers from the fact that the amount of moisture in snow may vary between l/6th to
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