1. Weather Prediction

2. Weather Prediction
Thermometer – an instrument that measures temperature
Thermoscope – an instrument consisting of a glass bulb with a long, thin neck inverted over a container of water
Invented by Galileo
Heating and cooling of the bulb expanded or contracted the air inside which changed the water level in the neck

3. Weather Prediction
Fiducial points – temperature scale points that can be trusted to remain the same under the same conditions
Used to define the temperature scale
Temperature at which water freezes and boils
0 degrees C / 32 degrees F
100 degrees C / 212 degrees F
Comparison of F to C 

4. Weather Prediction Anemometer – a device that measures wind speed
Rain gauge – a device that measures the amount of rainfall on a level surface

5. Weather Prediction Elaborate Instruments: Balloon-Carried Instruments
Various devices are transported to various altitudes and report data (such as temperature, pressure, humidity and wind speed) back to a weather station
Radar
Sends out microwave radio signals that bounce back from clouds and precipitation to gather and send information about incoming storms

6. Weather Prediction Satellites Automated Water Buoys and Stations
Placed in geosynchronous orbits and low earth orbits to take images of weather and relay information from sea buoys and ships to weather centers
Automated Water Buoys and Stations
Report sea and air temperature, wind, wave height…
Computers
Used for data processing; organize information that can be interpreted by meteorologists so that predictions about weather can be made