Apparent displacements due to radomes in the ISGPS network
The figures below show apparent displacenents in the vertical component
due to radome installation. Plotted is the deviation in ellipsoidal height
from a predefined value, in millimeters, as a function of time. Data were
processed using the Bernese V4.2 software. Green lines show the installation
times of the radomes, blue lines note the weighted average (the timespan of
the blue lines indicate what data were used to calculate the average).
Purple lines show confidence limits to the weighted average. The confidence
limits presented are only a measure of the scatter and are calculated
as the weighted RMS (sometimes termed "repetability"). Again the timespan
of the purple lines indicate what data were used to calculate the confidence
limits.
It is evident from the figures below that the installation of radomes (pn 0010-2)
causes an apparent vertical shift of ca. 20mm downwards.
Note: This work is in progress.
Back to the ISGPS homepage
Back to the ISGPS radome page
Benedikt Gunnar Ofeigsson (gps@vedur.is)