Fig. 8. Time histories of precipitable water vapor (red) and integrated liquid water (blue) for periods of station-keeping near Manus Island, derived from microwave radiometer data. The top two panels are for the 100-km station, the third and fourth panels are for the 30-km station, and the bottom panel is for the station closest to Manus Island. Downward-pointing arrows indicate times for which precipitation was detected at the surface.