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block 2
| Question | Answer |
|---|---|
| This satellite product does not display clouds but displays derived weather features.Ex: Surface Wind Speeds and Rain Rates | Microwave Imagery |
| What are four advantages of Microwave Imagery? | -Accuracy-Long Wavelength-Surface Monitoring-Data Sparse Coverage |
| Very accurate with data such as wind speeds over water, being verified by bouys and ships. | Microwave Imagery |
| Uses long wave lengths to enable the satellite to penetrate clouds and see the surface below. | Microwave Imagery |
| Has the ability to minimize attenuation, as well as ensuring consistent signal propagation. | Microwave Imagery |
| Ideal for monitoring the earths surface. | Microwave imagery |
| Diurnal(day,night insolation) has no effect on this type of imagery. | Microwave imagery |
| While other imagery can be affected by sun angle, this has no impact on this imagery. | Microwave Imagery |
| Has the ability to cover data sparse areas. | Microwave Imagery |
| Circulation center, cyclones and anticyclones, as well as low level convergence zones are easily distinguished. | Microwave Imagery |
| An invaluable tool in the mid-latitudes and tropics. | Microwave Imagery |
| Three sensors of the Product Creation Process | -Detection Process-Processing-Shared Processing Program (SPP) |
| Microwave radiation is recieved by satellite sensors that detects radiation emitted and reflected by earth and its atmosphere. | Detection Process |
| Once the data is recieved by the satellite it transmits the data to computer systems on the ground.Once downloaded applies a series of algorithms to create weather products. | Processing |
| Program through which products created are available, managed by (NESDIS). | Shared Processing Program (SPP) |
| The Shared Processing Program (SPP) is managed by what information service? | National Environmental Satellite, Data and information service (NESDIS) |
| The (SPP) programs are derived by what three governmental agencies? | -Air Force Weather Agency (AFWA)-the Navy's Fleet Numerical Meteorological and Oceanography Center (FNMOC) -the National Oceanic and Atmospheric Administration (NOAA) |
| What are the three Microwave Emission factors/ unique microwave radiance "signatures" or Variables in radiance. | -Emmisitivity-Spatial uniformity-Polorization |
| Earth and the atmosphere constantly emit... | Microwave Radiation |
| Emissivities are low and variations are significant. | Microwave Emissivities |
| Emissivities are high and variations are minor. | Infrared Wavelengths |
| -Is a constant emmiter with little or no diurnal(day,night) changes -Has a low emissivity-Produces long Microwaves | Water |
| A feature's emissivity may also vary with its ... | Physical State |
| -Has a lower emissivity than choppy water | Calm water |
| ______ water emits less radiaion while______ water emits more radiation | Calm, Choppy |
| Clouds have a varying emissivity based on the ______ ________ in the ____ ________ | Moisture Content, Air Parcels |
| ______ air emits less radiation while______ air emits more radiation | Moist, Dry |
| Clouds have a ______ emissivity which in turn produces______ microwaves | High, Short |
| When viewing ________ wavelengths low and middle clouds appear slightly ______ than sea water | Infrared, Colder |
| When viewing_________ frequencies low and middle clouds appear slightly ______ than sea water but are actually _______ because of higher emissivities | Microwave, Warmer, Colder |
| While water and clouds have a certain degree of variance _______ is the most variable emitter | Land |
| The great variance in land is due to the moisture content in soil. ______ soil emits less radiation while _____ soi emits more. | Wet, Dry |
| The emissivity varies greatly because ______ produces both long and short microwaves | Land |
| Emissivity variances can result in data ______ or data_______ | Thresholding, Rejection |
| An averaging of the data | Data Thresholding |
| Discarding of Data | Data Rejection |
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Created by:
cazey123
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