4. usgs, Calculator – Campbell Scientific RAWS-F Remote Automated Weather Station for Fire Weather User Manual
Page 39
RAWS-F Remote Automated Weather Station for Fire Weather
FIGURE 8-4. USGS web calculator
In the example above the declination for Logan, UT is 12º 24
′ or 12.4º. As
shown in FIGURE 8-4, the declination for Utah is east (positive), so True
North for this site is 360 ─ 12.4 = 347.6 degrees. The annual change is 7
minutes west per year or ─7 minutes/year.
31
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