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  2. METAR - Wikipedia

    en.wikipedia.org/wiki/METAR

    METAR is a format for reporting weather information. A METAR weather report is predominantly used by aircraft pilots, and by meteorologists, who use aggregated METAR information to assist in weather forecasting. Raw METAR is the most common format in the world for the transmission of observational weather data.

  3. Station model - Wikipedia

    en.wikipedia.org/wiki/Station_model

    In the United Kingdom, when the observation is taken from an automated weather observation site, the shape is a triangle. [10] If the shape is completely filled in, it is overcast. If conditions are completely clear, the circle or triangle is empty.

  4. SYNOP - Wikipedia

    en.wikipedia.org/wiki/SYNOP

    SYNOP (surface synoptic observations) is a numerical code (called FM-12 by WMO) used for reporting weather observations made by staffed and automated weather stations. SYNOP reports are typically sent every six hours by Deutscher Wetterdienst on shortwave and low frequency using RTTY .

  5. Trend type forecast - Wikipedia

    en.wikipedia.org/wiki/Trend_Type_Forecast

    A TTF is a professionally considered forecast for weather over a two-hour period, [1] and is based on an actual weather report, such as a METAR or SPECI and appended to the end of it. [1] A TTF is similar to or sometimes in addition to a TAF, a terminal aerodrome forecast, but during the TTF's validity period is considered superior to a TAF.

  6. Automated quality control of meteorological observations

    en.wikipedia.org/wiki/Automated_quality_control...

    A meteorological observation at a given place can be inaccurate for a variety of reasons, such as a hardware defect. Quality control can help spot which meteorological observations are inaccurate. One of the main automated quality control programs used today in the area of meteorological observations is the meteorological assimilation data ...

  7. IWXXM - Wikipedia

    en.wikipedia.org/wiki/IWXXM

    ICAO Meteorological Information Exchange Model (IWXXM) is a format for reporting weather information in XML/GML.IWXXM includes XML/GML-based representations for products standardized in International Civil Aviation Organization (ICAO) Annex III, such as METAR/SPECI, TAF, SIGMET, AIRMET, Tropical Cyclone Advisory (TCA), Volcanic Ash Advisory (VAA), [1] Space Weather Advisory and World Area ...

  8. Meteorological instrumentation - Wikipedia

    en.wikipedia.org/wiki/Meteorological_instrumentation

    Each science has its own unique sets of laboratory equipment. Meteorology, however, is a science which does not use much laboratory equipment but relies more on on-site observation and remote sensing equipment. In science, an observation, or observable, is an abstract idea that can be measured and for which data can be taken. Rain was one of ...

  9. Proxy (climate) - Wikipedia

    en.wikipedia.org/wiki/Proxy_(climate)

    Reconstructions of global temperature of the past 2000 years, using composite of different proxy methods. In the study of past climates ("paleoclimatology"), climate proxies are preserved physical characteristics of the past that stand in for direct meteorological measurements [1] and enable scientists to reconstruct the climatic conditions over a longer fraction of the Earth's history.