In situ?
Remote sensing
Passive remote sensing picks up wave lengths of the light spectrum occurring on their own such light in photography. Active remote sensing will send out a wavelength of the spectrum and measure how it bounces back like radar.
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Active remote sensing transmits energy to allow an image to be formed. Passive remote sensing collects energy reflected or emitted from a surface. Active systems direct a bean of energy at a surface and analyze the energy reflected back. An example of active sensing would be a radar. Passive systems are pretty much what the eyes see, and it's like a photograph. Passive sensing radiates visible light.
remote sensing
remote sensing
Remote Sensing Center was created in 2006-09.
Remote sensing transmits energy that allows an image to be formed. Passive remote sensing collects energy that is reflected or emitted from a surface.
Indian Institute of Remote Sensing was created in 1966.
Pakistan Remote Sensing Satellite was created in 2011.
Explain how the remote sensing satellites examined the earth from the space?
Remote sensing
What are some non-satellite remote sensing technology?
Passive remote sensing picks up wave lengths of the light spectrum occurring on their own such light in photography. Active remote sensing will send out a wavelength of the spectrum and measure how it bounces back like radar.
The platforms that harbor remote sensing sensors (eg. cameras) are called remote sensing platforms. In earlier days, during military reconnaissance, pigeons attached with cameras were made to fly over areas of interest. In this case the platform is the bird. Balloons, airplanes and satellites that carry remote sensing sensors are examples of remote sensing platforms.
Active remote sensing uses its own electromagnetic radiation and use microwaves. It maps areas hard to map.