test2chpt13 - Intensity of precipitationreflectivity...

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Chapter 13 1. Briefly describe how weather radar works. Pulses of electromagnetic energy are transmitted from the antenna then some of the energy is scattered back to the antenna and the signal is processed for display 2. What are the two types of radar images and what does each image show? 1. Reflectivity image—shows location, intensity and movement of precipitation 2. Velocity image—shows air motion either toward or away from the radar (based on Doppler principle) allows detection of rotation within a thunderstorm 3. On TV, they usually refer to weather radar as a “Doppler radar”. Doppler radar produces both types of images. Which of the two images is based on the Doppler principle? Velocity image 4. When observing a thunderstorm utilizing Doppler radar, which radar image would indicate the intensity of precipitation in the thunderstorm and which image might detect rotation within the thunderstorm?
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Unformatted text preview: Intensity of precipitationreflectivity Rotation w/in thunderstormvelocity 5. What is the satellite called that provides the images you usually see on TV or the internet? GOES satellite 6. Where are the GOES satellites located in space with respect to the earth? 22,300 miles above the equator 7. What two things are measured by the GOES satellites? 1. Reflected solar radiation (sunlight) 2. outgoing long wave radiation 8. What is the difference between ASOS and a radiosonde? ASOS is a surface observation and radiosonde is an upper air observation 9. What does an isobar and an isotherm represent on a surface weather map? Isobarline of equal pressure Isothermline of equal temperature 10. Identify the 3 ways temperature can change within the troposphere. 1. Inversionincrease w/ height 2. Lapse ratedecrease w/ height 3. Isothermal layerstays constant w/ height...
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This note was uploaded on 11/14/2010 for the course ATMO 1300 taught by Professor Phillips during the Fall '08 term at Texas Tech.

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