Putting science
at the heart of development
Definitions
Below is a directory of terms used in discussions about remote sensing for natural disasters. Most of the terms have been reproduced from the Canada Centre for Remote Sensing and the UN Department of Humanitarian Affairs.
New technologies have the potential to accelerate a country's development, but a global technology gap remains.
P
Polar orbit
An orbit in which a satellite passes above or nearly above both poles of the Earth in each revolution. It has an inclination of (or very close to) 90 degrees to the equator. A satellite in a polar orbit will usually pass over the equator at a different longitude on each revolution. A polar orbit has an altitude of approximately 1000 kilometres above the ground.
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