Campbell-scientific RAWS-H Remote Automated Weather Station Manual do Utilizador descarregar pdf (Página 23)

RAWS-H Remote Automated Weather Station

in FIGURE 9-3. Note that when a negative number is subtracted from a

positive number, the resulting arithmetic operation is addition.

For example, the declination for Longmont, CO is 10.1°, thus True North is

360° ─ 10.1°, or 349.9° as read on a compass. Likewise, the declination for

Mc Henry, IL is ─2.6°, and True North is 0° ─ (─2.6°), or 2.6° as read on a

compass.

FIGURE 9-1. Magnetic declination for the contiguous United States

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 31 32

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