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Geopotential, temperature, winds (U/V) @ , sp. humidity, 6hrly accum. total precipitation @ (200 or 250), 500, (850 or/both 925) hPa
if need to save space, sp. humidity at 925hPa only (see fig 2)
PV + wind (U/V) @ 330 K isentrope (see Fig.10 in paper) ( Frédéric asked for geopotential/winds at 1.5PVU but I don't think we archive these?)
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