Appendix a. csat3 orientation, A.1 determining true north and sensor orientation – Campbell Scientific CSAT3 3-D Sonic Anemometer User Manual
Page 55
Appendix A. CSAT3 Orientation
A.1 Determining True North and Sensor Orientation
The orientation of the CSAT3 negative x-axis is found by reading a magnetic
compass and applying the site-specific correction for magnetic declination;
where the magnetic declination is the number of degrees between True North
and Magnetic North. Magnetic declination for a specific site can be obtained
from a USGS map, local airport, or through a NOAA web calculator (Section
A.2). A general map showing magnetic declination for the Conterminous
United States in 2004 is shown in FIGURE A-1.
FIGURE A-1. Magnetic declination for the conterminous United States
(2004)
A-1
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