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Measuring Lower and Upper Atmospheric Conditions

Measuring Lower and Upper Atmospheric Conditions . By: Ashley Noah. Measuring Lower- Atmospheric Conditions . Air Temperature. instrument that measures and indicates temperature is called a thermometer.

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Measuring Lower and Upper Atmospheric Conditions

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  1. Measuring Lower and Upper Atmospheric Conditions By: Ashley Noah

  2. Measuring Lower-Atmospheric Conditions

  3. Air Temperature • instrument that measures and indicates temperature is called a thermometer. • When the temperature rises it causes the liquid to expand and rise in the tube. • Electrical thermometer-the electric current that flows through the material which is translated into temperature readings.

  4. Air Pressure • Changes in air pressure affect air masses • Barometers measure atmospheric pressure • A drop in air pressure usually is indicated by a front approaching.

  5. Wind Speed • Anemometer measures wind speed • Anemometer is usually consists of small cups that are attached by spokes to a shaft that rotates freely • The anemometer works by when the wind pushes against the cups and causes them to rotate.

  6. Wind Direction • Wind Vane determines the direction of wind • Wind Vane is commonly an arrow-shaped instrument that turns freely on a pole as the tail catches the wind. • Wind direction can be described by using compass directions or by degrees

  7. Measuring Upper-Atmospheric Conditions

  8. Radiosonde • Radiosonde is an instrument package that is carried high into the atmosphere by weather balloon to measure humidity, air pressureand air temperature • Radiosonde sends measurements as radio waves to a receiver that records the information.

  9. Radar • Radar-instrument for determining weather conditions in the atmosphere • Radar stands for Radio Detection And Ranging • Uses radio waves to determine velocity and location of objects

  10. Weather Satellites • Weather satellites collect important information about the atmosphere • The direction and speed of the wind at the level of the clouds can be measured by examining a continuous sequence of cloud images

  11. Computers • Meteorologists use supercomputers to figure out the weather or by solving the math equations that describe the behavior of the atmosphere • Data can provide information that is useful in forecasting weather changes • Computers may greatly improve weather forecasts

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