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Urban Heat Island
The satellite image of Atlanta, GA is an example of a surface-
All surfaces give off thermal energy, or radiant emissions, that is emitted in wavelengths. These wavelengths can be identified and measured using remote sensing. Remote sensing is a process in which instruments are used to "capture" the relationship of objects and materials observable at a distance.
Using radiometers mounted on aircraft or a satellite allows researchers to easily
collect a large number of surface observations. The National Aeronautics and Space
Administration (NASA) conducted flyovers using an aircraft-
Several cities also use Landsat satellite data to classify land cover and identify heat islands. The Landsat 7 satellite, a U.S. satellite used to acquire remotely sensed images of the earth's land surface and surrounding coastal regions, provides information from which we can derive surface temperatures and evaluate heat islands.
Source: US EPA
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