气象报文的释读（）.docVIP

气象报文的释读（） On the interpretation of meteorological weather message 1. application of ground meteorological observation data (METAR) Meteorological observation refers to the personnel system, the atmospheric state with the instrument or eyesight on the ground continuous observation and determination. Due to lack of variability and observation technology in space and time of meteorological factors, and the limitations of the definition of some meteorological factors, must be user specific to any numerical elements in the report to understand the actual situation of the best approximate observation value. At present, Chinas civil aviation ground weather observation includes routine observation (METAR) and special observation (SPECI). Routine observation: whether or not there is a flight mission, hourly observation, according to the requirements of the competent meteorological department, can also be observed every half an hour Special observation: observations made during the time interval between two routine observations: 1) when visibility (runway, visual range), cloud or wind reaches or passes the specified value of this particular election, or reaches or passes the minimum standard of operation of this field 2) certain elements that meet or pass through the air traffic control department or other departments and meteorological departments agree on values. 3) when any of the following weather phenomena occurs, terminates (vanishes) or changes in intensity: Freeze freezing precipitation fog or large precipitation (including rainfall showers) low blowing dust, sand or snow, blowing dust, sand or snow storm sandstorm thunderstorm (with or without precipitation) squall funnel cloud A) routine observation report (METAR) example 1: METAR newspaper at YUDO (Donlon / International Airport): METAR, YUDO, 221630Z, 24015KMH,, R12/1000U, FG, DZ,, SCT010, OVC020, 17/16, QNH1018 BECMG TL1700 0800, FG, BECMG, AT1800, 9999, NSW Telegram translation: The 22 day of the 1630 world, rou