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Remote Sensing
• Remote sensing is the science of acquiringinformation about the Earth's surfacewithout actually being in contact with it.
Remote Sensing
• The gathering ofinformation from anobjects withoutdirectly contact.
Remote Sensing
• Remote sensing is a tool ortechnique similar tomathematics. Usingsensors to measure theamount of electromagneticradiation (EMR) exiting anobject or geographic areafrom a distance and thenextracting valuableinformation from the datausing mathematically andstatistically method.
History of Remote Sensing
1609 - Invention of the telescope
History of Remote Sensing
1859 - First aerial photographer
1862 - US Army balloon corp
History of Remote Sensing
1903 - The Bavarian Pigeon Corps
1908 - First photos from an airplane
History of Remote Sensing
1914-1918 - World War I
Some Remote Sensors
Remote sensing cycle
• Remote Sensing Includes:
A) choice of sensors
B) The reception, recording, and processing of the signal data
C) The analysis of the resultant data
Remote Sensing Process Components
• Energy Source or Illumination (A)
• Radiation and the Atmosphere (B)
• Interaction with the Target (C)
• Recording of Energy by the Sensor (D)
• Transmission, Reception, and Processing
(E)
• Interpretation and Analysis (F)
• Application (G)
Applications of Remote Sensing
1. Urban & Regional Planning
- Mapping & updation of city/town maps
- Urban sprawl monitoring
- Town planning
- Facility management
- GIS database development
2. Agriculture
• Crop acreage estimation
• Crop & Orchard monitoring
3. Flood Damage to Standing Crops
Pre Flood – 17 July 2006 Post Flood – 09 Aug 2006
4. Forestry
• Satellite image based forest resource mapping
and updation
• Forest change detection
• Forest resource inventory
• GIS database development
5. Landuse / Landcover Mapping
• Monitoring dynamic changes
• Urban/Rural infrastructure