Remote Sensing
Terms
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- Earth's four spheres are:
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Biosphere (living things)
Hydrosphere (water)
Atmosphere (air)
Lithosphere (land) - What 4 broad categories of features are generally visible on GOES satellite images?
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Land surfaces
Ocean surfaces
Snow/ice surfaces
Cloud tops - Name 3 advantages of a geostationary satellite which provides better tracking of localized hazardous weather conditions.
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Precision
Accuracy
Frequency (every 15 min.) - What is one big difference between a POES satellite & a GOES satellite?
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POES conver the entire earth traveling north-south passing very close to the poles.
GOES appear sationary above a specific point of earth & follow the earth as they rotate. - What does the acronym POES represent?
- Polar Operational Environmental Satellite
- What does the acronym GOES mean?
- Geosynchronous Operational Environmental Satellite
- The time stamp which appears on most images is local standard time in Greenwich, England. It used to be called Greenwich Mean Time (GMT). What is it called now?
- Greenwich Mean Time (GMT) is now called Universal Time Coordinates (UTC).
- Name two sources of radiation coming from features on earth, such as: oceans, land, cloud tops, snow/ice.
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Relfected (visible) sunlight (depends on intensity of light striking a feature & a feature's reflectivity (or albedo)
Emitted IR radiation (intensity depends on temperature of feature) - Many scientists believe that Ozone is on the rise in the atmosphere. Is this true?
- Yes, but others say it is part of a cycle of years. With better satellite imaging & more data collected for comparison, scientists hope to validate their theories.
- What is albedo?
- Albedo is the proportion of visible light striking an object or surface that the object or surface reflects.
- What are the Primary Colors of Light?
- Red, Green, Blue
- What organization is dedicated to studies about climate change?
- National Oceanic & Atmospheric Administration (NOAA)
- Is it true that a geostationary satellite looks at all times at the same location as it follows the earth's movement?
- Yes