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<br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />t <br />t <br />t <br />t <br />t <br />t <br />t <br />t <br />. <br />. <br />. <br />I <br />I <br />. <br />. <br />. <br />. <br />I <br />I <br />I <br />I <br />I <br /> <br />. The range of results, i.e., the correlation between the various analyses, are <br />similar to those found in other western states mountainous regions, <br /> <br />. Relationships using precipitation data indicate better correlation between target <br />and control areas than snowpack data for the same regions. This is consistent <br />with findings from other regions, although the precipitation analysis has fewer <br />historical not-seeded seasons and far fewer target sites. <br /> <br />. Some of the sub-area (river drainage) results show correlations in the same <br />overall range as the full target assessments. Some of these may be useful in <br />ancillary analyses. <br /> <br />. Single season results will most likely not provide statistically significant <br />indications of seeding effects, but can potentially provide a useful indicator of <br />the approximate magnitude of any such effects. Multiple season statistics <br />improve the confidence which can be attributed to the indicated results. <br /> <br />Recommendations <br /> <br />. For the sub-areas which exhibit relatively high correlation between the sub-area <br />target and control areas, it is recommended that those sub-area seeding effect <br />estimations be used to predict seasonal differences in spring runoff. Although <br />single season results may not be conclusive, multiple season indications may <br />provide useful information toward estimation of the dollar value of the seeding <br />project and development of project benefiVcost estimations. <br /> <br />. The process of transitioning some measurement sites from snowcourse to <br />SNOTEL continues, although at a slower rate than in earlier decades. <br />Occasionally, a site may be decommissioned. Thus, data (site) availability <br />should be assessed each summer or fall, followed by adjustment of the <br />regression evaluations as may be necessary if one or more of the sites is <br />decommissioned. <br /> <br />28 <br />