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500 hPa height (solid contours every 6 dam) and QGPV (shaded in PVU).
The QGPV is multiplied by -g(d(theta)REF/dp) to convert from units of s-1 to PVU as described in Hakim et al. (1995, p. 2666).
CMC GDPS analyses and forecasts on .6x.6 latitude-longitude grid are smoothed with a 9-point local smoother run 80 times.