
Tuesday, August 4, 2009
Tuesday, July 28, 2009
Tuesday, July 21, 2009
Image Rectification
Image rectification is very useful because it allows the viewer to see actual structures and the lay of the land that is geographically accurate. A great example of this is when the landscape has been changed due to an extreme disaster and first responders need accurate maps to be used from the ground. As useful as image rectification is, there are pitfalls. If the image is out of date and the landscape has changed considerably, it could actually become an impedance. The same applies to images that have been rectified poorly.
Wednesday, July 15, 2009
Module 2 Lab
Roads: have absorbed more heat and remain warmer through the night
Natural and man-made vegetation: did not retain heat though the night
Sidewalks and patios: have absorbed more heat and remain warmer through the night
Storage sheds in back yards: no internal heat source and heat from sun was not retained overnight
Automobiles: cars that have not been running recently appear dark, cars that have been running recently show hot spots on the engines
Bright spots on many of the roof tops: heat from chimneys or roof vents
Natural and man-made vegetation: did not retain heat though the night
Sidewalks and patios: have absorbed more heat and remain warmer through the night
Storage sheds in back yards: no internal heat source and heat from sun was not retained overnight
Automobiles: cars that have not been running recently appear dark, cars that have been running recently show hot spots on the engines
Bright spots on many of the roof tops: heat from chimneys or roof vents
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