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Predicting Weather Notes Weather Technology Technology Location Function Weather Balloons Troposphere & Lower Stratosphere Measures temperature, air pressure, and humidity Weather Satellites Exosphere Collects data on temperature, solar radiation, wind speed and direction, and provides images of clouds and storm systems Automated Weather Stations Earth’s Surface Gathers data on temperature, air pressure, relative humidity, rainfall, wind speed and direction Earth’s Surface Gathers large amounts of data on temperature, air pressure, humidity, wind speed and direction Ground Tracks amount and direction of precipitation Computer Forecasts Doppler Radar Weather Instruments Instruments What it measures Barometer Air Pressure Thermometer Temperature Anemometer Wind Speed Wind Vane Wind Direction Doppler Radar Cloud cover Weather Maps Map Representation Isobar – (give definition) Lines joining places on a map with the same air pressure Isotherm – (give definition) Lines joining places on a map with the same temperature Rain= Rain Gauge Precipitation Snow= How I will remember this Fronts Type of Front Cold Front Warm Front Stationary Front Occluded Front Pressure Systems Type of Pressure System Definition Picture Map Representation How I will remember this Fast moving cold air mass meets a slow moving warm air mass Fast moving warm air mass meets a show moving cold air mass A cold and warm air mass meet but neither move A warm air mass meets two cold air masses and is pushed out of the way Air Molecules Movement Associated Weather Low Rising and expanding Storms High Sink and condenses Dry and clear (nice days) Map Representation Meteorologists have many sophisticated tools to help them forecast the weather. However, weather forecasts are sometimes incorrect. Explain why weather forecasts are not always accurate. The butterfly effect: a tiny event might cause a larger disturbance that could eventually grow into a large storm.
