Figure J-3. Graphs showing potential C
site
multiplier errors
Figure J-4 (p. 78) and Figure J-5 (p. 79) show the site calibration results for a DUC when the
“Transfer Standard” calibrator was 200 meters away during three high field events on that day.
The poor r
2
values and the large difference in the C
site
regression between the third storm and all
three storms are indicative of the problems associated with large separation distances. Larger
storms with a more uniformly charged stratus layer may work better. Site calibrations where the
calibrators have to be so distant may only be possible if four calibrators can be setup on the
compass points around the DUC.
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