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Progress in Earth and Planetary Science
Fig. 2 | Progress in Earth and Planetary Science

Fig. 2

From: Cold surge event observed by radiosonde observation from the research vessel “Hakuho-maru” over the Philippine Sea in December 2012

Fig. 2

Horizontal map of relevant meteorological variables during the Hakuho-maru observation period. The NCEP Reanalysis II geopotential height (color shading), temperature (Kelvin, black contours), horizontal wind (arrows), and TRMM 3B42 rainfall (gray shading) at the 925 hPa level at (upper) 1200 UT on December 21, (middle) 0600 UT on December 23, and (lower) 0000 UT on December 26, 2012. The launch sites of the radiosondes from the R/V Hakuho-maru are indicated by red pluses

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