plot2a_windcomp_clr.ps & plot2b_windcomp_clr.ps (Color)

This pair of color postscript files serve as a check of the UCI wind
calculation.  These data are from a upwind/downwind reverse-heading
maneuver immediately followed by a cross-wind reverse-heading maneuver
performed by N43RF on 28 November, 1992.  For comparison purposes, the
winds calculated by NOAA/AOC and NOAA/NSSL are included in the plot.
The first plot (plot2a_windcomp_clr.ps) shows the latitude, longitude,
heading, and elevation of the aircraft during the maneuvers.  The
second plot (plot2b_windcomp_clr.ps) shows the resulting wind vector.  If
the wind field is assumed to be steady throughout the maneuver, then
the resulting wind vector should show a minimal change independent of
the aircraft heading.  It should be noted that, for this plot only,
the wind direction is not displayed in the normal convention of 0 to
360 degrees.  It is plotted from -180 to 180 degrees.  This is done to
avoid the discontinuity which occurs between 0 and 360 degrees.  The
large jumps in wind direction for the NOAA/NSSL calculated wind
direction (dark blue) indicate that either the wind direction is
extremely variable throughout the maneuver or there is a problem with
the NOAA/NSSL calculated winds.  The vertical wind for NOAA/AOC and
NOAA/NSSL is identical since NOAA/NSSL did not modify the original
vertical wind calculated by NOAA/AOC.


plot3a_windcomp_bw.ps & plot3b_windcomp_bw.ps (B & W)

A similar plot to plot2a_windcomp_clr.ps & plot2b_windcomp_clr.ps, but in
black and white.  These data, except wind direction, have been filtered
at 0.05 Hz. so that the differences can be more clearly seen.