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<br />. <br /> <br />SECTION 5. - PRECIPITATION GAGES <br /> <br />A total of eight Belfort weighing dual-traverse precipitation gages were <br />operated at six_different sites dur.ing the 1984-85 winter. <br /> <br />Two different sizes of gage orifices were used. To achieve the greatest <br />resolution, each site was equipped with a gage having a 17.9-inch diameter <br />orifice (5 times the area of the standard 8-inch opening). This size ori- <br />fice coupled with the Belfort 12-inch dual-traverse mechanism reduces the <br />usable gage capacity to about 2.4 inches of water equivalent. All of these <br />units were operated with electric clocks and daily gears to obtain the best <br />time resolution possible. In addition, 2 sites (GMO East and GMO West) also <br />contained gages having 11.3-inch orifices (twice the standard opening) and <br />weekly gears. These served to obtain data during the few heavy snowfall <br />periods when the larger orifice gages became overfilled. The data concerning <br />the gage site identifications, elevations, locations, and operating periods <br />are contained in Table 5-1 below: <br /> <br />Table 5-1. Precipitation gage sites 1984-85 CRADP field season <br /> <br />Site <br /> <br />Elevation <br /> <br />Lat itude <br /> <br />Longitude <br /> <br />Period of Operation <br /> <br />Lands End <br /> <br />(feet t~SL) <br />10,050 <br /> <br />10,630 <br /> <br />(dd nm s 5 ) <br />39003' 1411 <br /> <br />(dd rrm ss) <br />10800410811 <br /> <br />Mesa Lakes <br /> <br />3900113811 <br /> <br />28 Feb 84 - 30 Apr 85 <br />14 Jan 84 - 30 Apr 85 <br />5 Nov 84 - 30 Apr 85 (SM)* <br />10 Dec 84 - 30 Apr 85 (LG)* <br />10800015211 26 Oct 84 - 30 Apr 85 (SM)* <br /> <br />10800315211 <br /> <br />GMO West <br /> <br />10,810 <br /> <br />39002'09" <br /> <br />10800114811 <br /> <br />GMO East <br /> <br />10,810 <br /> <br />39002'49" <br /> <br />19 Nov 84 - 30 Apr 85 (LG)* <br /> <br />Radar <br /> <br />10,410 <br /> <br />39002120" 10800211511 14 Nov 84 - 30 Apr 85 <br /> <br />Ward creek <br /> <br />9,560 <br /> <br />39000120" 107058'3211 21 Jan 85 - 30 Apr 85 <br /> <br />*(SM) Small orifice, 11.3 inch <br />*(LG) large orifice, 17.9 inch <br /> <br />Precipitation gage data are being extracted hourly for the large orifice <br />gages, and in 6-hour blocks for the smaller units. It is anticipated that a <br />complete data set will be availabll~ on magnetic tape by the late summer of <br />1985. <br /> <br />5-1 <br />