(IVAR) - Final Report - Strategic Environmental Research and ...

will measured the magnetic bearing to and the angle of inclination to the top of the landmark
assigned to that VT site. These measured values will be used later to compute the location and
height of the landmark from the VT site, and these computed values will then be compared to the
actual values to check that the compass/inclinometers was being used correctly.
Site Set-Up
Onsite personnel at each facility pre-select the general position of the sites from which the VTs
will make their observations. On the morning of the first day, the RT & VT teams tour all of the
sites to familiarize themselves with each site’s:
• Location, topography, and proximity to manmade structures;
• Proximity to trees, bodies of water and other common bird habitats;
• Position relative to the radar site; and
• Position relative to the estimated height of the radar beam over and near that position.
Within the general locale of a site, the team members agree upon a specific position for VT site.
They then mark the center point of the site with a flag (Figure B-5) and use a GPS to record the
longitude, latitude, and elevation coordinates of that site (Figure B-6). Next they use a compass
to position a flag at each of the four cardinal compass points around the site, approximately 10
meters from the center flag (Figure B-7). These compass point flags aid the VT in orienting to
the position of a target called out in an RFC.
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