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ENVS720: Extra Lecture 1

ENVS720. Remote Sensing. DefinitionProcessA little history. ENVS720.

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ENVS720: Extra Lecture 1

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    1. ENVS720 ENVS720: Extra Lecture 1 Definition & History of Remote Sensing

    2. ENVS720 Remote Sensing Definition Process A little history

    3. ENVS720

    4. ENVS720 Remote Sensing the collection of information about an object without being in direct physical contact with the object. Relies upon measurement of electromagnetic energy reflected or emitted from the features of interest

    5. ENVS720

    6. ENVS720 General Terms Energy Source Electromagnetic Radiation Most remote sensing uses the sun as a source of energy Target System or Platform Contains the sensor(s) Note that the satellite can also be an aircraftNote that the satellite can also be an aircraft

    7. ENVS720

    8. ENVS720 History of Remote Sensing Photography to Multi-spectral scanning systems Balloons, pigeons, airplanes, sub-orbital airplanes, to satellites Black & white, color, infrared, digital imagery

    9. ENVS720 History of Remote Sensing

    10. ENVS720 History of Remote Sensing

    11. ENVS720 History of Remote Sensing

    12. ENVS720 History of Remote Sensing

    13. ENVS720 History of Remote Sensing

    14. ENVS720 History of Remote Sensing

    15. ENVS720 Space imaging Received impetus through RS from rockets (1891) Space RS began in rrnest in 1946 when small cameras were mounted on V-2 rockets Subsequently on ballistic missiles, manned spacecraft, but poor quality Meteorological satellites in 1960 (Television and Infrared Observation Satellite (TIROS-1)) Also US military space imaging reconnaissance program (Corona) was started in 1960 Afterwards, several aerial photographs were taken covering the globe i.e Apollo programme

    16. ENVS720 1973- Skylab the first American space workshop launched and astronauts took over 35000 images of the earth

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