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  • The data include such observational data as geopotential height, temperature, dew point temperature, wind direction, wind speed at all specific isobaric levels and pressure-temperature-humidity layers from 89 upper air stations in China acquired by the CMA National Meteorological Information Centre (NMIC) through the domestic telecommunication system, and those from foreign upper air stations via GTS.
  • The data include such observational data as geopotential height, temperature, dew point temperature, wind direction, wind speed of all specific isobaric levels and pressure-temperature-humidity layers at the synoptic hours (00:00 and 12:00 UTC) from the upper air stations in China acquired by the CMA National Meteorological Information Centre (NMIC) through the domestic telecommunication system, and those from foreign upper air stations via GTS.
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