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<br />t <br />t <br />t <br />t <br />t <br />t <br />t <br />t <br />t <br />t <br />t <br />~ <br />~ <br />~ <br />~ <br />~ <br />~ <br />. <br />. <br />. <br />. <br />I <br />I <br />I <br />. <br />I <br />, <br />, <br />, <br />, <br />I <br />I <br />I <br />I <br /> <br />precipitation from a major storm during that window mayor may not be measured, or <br />snowmelt may have already begun before the April 1 survey occurs. For these <br />reasons, snowpack regression analyses based on April 1 values typically do not exhibit <br />correlations as high as time resolved precipitation records. <br /> <br />TABLE 4. <br />Snowpack Analysis Results <br /> <br />9 control sites <br />22 target sites <br />Water years: 1971-76, 1978, 1983-84, 1986-92, 1997-2001 (21 seasons) <br />Linear: y=.4723x + 4.3310 r = .875, r' = .766, se = 0.865 <br />Polynomial (3'" pwr): y= -.0057x' + .2798x' - 3.9542x + 26.938 r = .891, r' = .794 <br /> <br />Control: <br />Site Name Elev Lat Lon SnO'NCourse Snowpillow Precip <br />Brown Cabin 9600 37.33' 105.24' 1965-present <br />Crosho 9100 40.10' 107.03' 1972-1992 1987 -present 1987 -present <br />Dry Lake 8400 40.32' 106.47 1936-1989 1936-present 1961-present <br />Elk River 8700 40.51' 106.58' 1936-present 1979-present <br />Gore Pass 9400 40.05' 106.33' 1951-present <br />lasal Mtn Upper. UT 9850 38.29' 109.16' 1956.present 1982-present <br />Lynx Pass 8880 40.05' 106.40' 1936-1989 1936-present 1981-present <br />Rabbit Ears 9400 40.22' 106.44' 1951-2000 1951-present 1987-present <br />Yampa View 8200 40.22' 106.46' 1951-present <br />Target: <br />Site Name Elev Lat Lon Snowcourse SnoWDillow Precip <br />Antera 9300 38.55' 105.58' 1949-present <br />Arrow 9680 39.55' 105.45' 1938-1989 1938-present 1979-present <br />Berthoud Falls 10500 39.47 105.47' 1951-present <br />Berthoud Pass 9700 39.50' 105.45' 1936-present <br />Berthoud Summit 11300 39.48' 105.47 1951.present 1961-present 1979-present <br />Blue River 10500 39.23' 10603' 1957 -present <br />Como 10370 39.21' 105.55' 1967 -present <br />Empire 9600 39.46' 105.47 1949-present <br />Fremont Pass 11400 39.23' 106.12' 193!>-2000 1939-present 1981-present <br />Geneva Park 9600 39.31' 105.43' 1949-present <br />Grizzly Peak 11100 39.39' 105.52' 1942-1989 1961-present 1981-present <br />Hoosier Pass 11400 39.22' 106.04' 1936-1989 1936.present 1981-present <br />Horseshoe Mountain 11220 39.12' 106.08' 1967-present <br /> <br />14 <br />