Weather*Is a term that encompassesphenomena in the atmosphere ofa planet.*It is also normally taken to meanthe activity of...
To produce a short-range forecast isindeed a big task involving the foursteps. Included in these are:ObservationCollecti...
*From the weatherpatterns, a number ofmethods are used toknow the future state ofatmosphere, a job calledweather forecasti...
WHAT IS A WEATHERFORECAST?  (weather forecasting)
A weather  forecasting issimply a scientificestimate of futureweather condition.
*Weather condition is the stateof the atmosphere at a giventime expressed in terms of themost significant weathervariables...
HOW IS AWEATHERFORECAST MADE?
*In forecasting the weather, aMeteorologist must at least knowsomething about the existingweather condition over a large a...
*The forecast decisionis based on variousforecasting tools.*The basic tool ofweather forecaster isthe WEATHER MAP.
*The WEATHER MAP depicts thedistribution patterns ofatmospheric pressure, wind,temperature and humidity at thedifferent le...
Five standardlevel/steps of theupper air maps thatare constructedtwice daily at twelve -hourly interval.
*Observation*Collection and Transmission ofWeather Data*Plotting and Analysis of weatherData*Analysis of Weather Maps, Sat...
Observation
Plotting and Analysis OfWeather Data
Analysis Of Weather Maps, SatelliteAnd Radar Imageries And OtherData/Prognosis or Forecast
Formulation Of TheForecast
*The surface maps aremade four times daily attwelve- hourly interval.The distribution patterns ofrain or other forms ofpre...
Numerical Weather       Prediction*Is the science ofpredicting the weatherusing “models” of theatmosphere andcomputational...
TECHNIQUES*Persistence*Use of a barometer*Looking at the sky*Now casting*Use of forecast models*Analog techniques
Weather   Elements:*Temperature*Atmospheric Humidity*Atmospheric Pressure*Wind
Weather   Instruments*Temperature thermometerMinimum thermometerThermographThermometer Shelter orScreen
Atmospheric      Pressure*BarometerMercurial barometerAneroid barometer
Surface WindVelocity and Direction:
Wind vane (weather vane)AnemometerAerovaneSling-psychrometerhygrothermograph
*Hygrometer*Precipitation*Rain Gauge*clouds
SpecialInstruments toMeasure Upper-   Air Data:
*Pibal/Theodolite (Pilot BalloonTheodolite)*Radiosonde*Wind-finding radar*Weather surveillance radar*Satellite imagery
Weather SatelliteData: Modern Tool   for Weather     Analysis
*Polar-ObtainingSatellites*GeostationaryMeteorological Satellite(GMS)
What CausesRainfall?
Thank you forlistening   …
Weather: my report in earth science
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Weather: my report in earth science

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Weather: my report in earth science

  1. 1. Weather*Is a term that encompassesphenomena in the atmosphere ofa planet.*It is also normally taken to meanthe activity of these phenomenaover short periods of time usuallyno more than a few days.
  2. 2. To produce a short-range forecast isindeed a big task involving the foursteps. Included in these are:ObservationCollection and Transmission ofWeather DataPlotting and Analysis of WeatherDataPrognosis or Forecast
  3. 3. *From the weatherpatterns, a number ofmethods are used toknow the future state ofatmosphere, a job calledweather forecasting.
  4. 4. WHAT IS A WEATHERFORECAST? (weather forecasting)
  5. 5. A weather forecasting issimply a scientificestimate of futureweather condition.
  6. 6. *Weather condition is the stateof the atmosphere at a giventime expressed in terms of themost significant weathervariables.*The significant weathervariables being forecast differfrom place to place.
  7. 7. HOW IS AWEATHERFORECAST MADE?
  8. 8. *In forecasting the weather, aMeteorologist must at least knowsomething about the existingweather condition over a large areabefore he can make a reliableforecast.*The accuracy of his forecastdepends largely upon his knowledgeof the prevailing weather conditionsover a very wide area.
  9. 9. *The forecast decisionis based on variousforecasting tools.*The basic tool ofweather forecaster isthe WEATHER MAP.
  10. 10. *The WEATHER MAP depicts thedistribution patterns ofatmospheric pressure, wind,temperature and humidity at thedifferent levels of theatmosphere.*There are two types of the basicweather map namely: the surfacemap and the upper – air maps.
  11. 11. Five standardlevel/steps of theupper air maps thatare constructedtwice daily at twelve -hourly interval.
  12. 12. *Observation*Collection and Transmission ofWeather Data*Plotting and Analysis of weatherData*Analysis of Weather Maps, Satelliteand Radar Imageries and OtherData /Prognosis or forecast*Formulation of Forecast
  13. 13. Observation
  14. 14. Plotting and Analysis OfWeather Data
  15. 15. Analysis Of Weather Maps, SatelliteAnd Radar Imageries And OtherData/Prognosis or Forecast
  16. 16. Formulation Of TheForecast
  17. 17. *The surface maps aremade four times daily attwelve- hourly interval.The distribution patterns ofrain or other forms ofprecipitation andcloudiness can also bedelineated.
  18. 18. Numerical Weather Prediction*Is the science ofpredicting the weatherusing “models” of theatmosphere andcomputational techniques.
  19. 19. TECHNIQUES*Persistence*Use of a barometer*Looking at the sky*Now casting*Use of forecast models*Analog techniques
  20. 20. Weather Elements:*Temperature*Atmospheric Humidity*Atmospheric Pressure*Wind
  21. 21. Weather Instruments*Temperature thermometerMinimum thermometerThermographThermometer Shelter orScreen
  22. 22. Atmospheric Pressure*BarometerMercurial barometerAneroid barometer
  23. 23. Surface WindVelocity and Direction:
  24. 24. Wind vane (weather vane)AnemometerAerovaneSling-psychrometerhygrothermograph
  25. 25. *Hygrometer*Precipitation*Rain Gauge*clouds
  26. 26. SpecialInstruments toMeasure Upper- Air Data:
  27. 27. *Pibal/Theodolite (Pilot BalloonTheodolite)*Radiosonde*Wind-finding radar*Weather surveillance radar*Satellite imagery
  28. 28. Weather SatelliteData: Modern Tool for Weather Analysis
  29. 29. *Polar-ObtainingSatellites*GeostationaryMeteorological Satellite(GMS)
  30. 30. What CausesRainfall?
  31. 31. Thank you forlistening …

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