Remote sensing data comes in two basic types, passively collected data. Passive data collection focuses on acquiring intensities of electromagnetic radiation generated by the sun and reflected off the surface of the planet. Active data collection is largely restricted to devices that send and generate a pulse of energy to that is reflected back to the satellite to be recorded.
Tuesday, March 8, 2011
REMOTE SENSING DATA: RADARSAT
REMOTE SENSING DATA: RADARSAT: "http://nsidc.org/data/radarsat/index.html Radarsat are about 900 km above the earth. This is much higher..."
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