Environment Rs August 08
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Environment Rs August 08

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Environment through Remote Sensing

Environment through Remote Sensing

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  • 1. Environment through Remote Sensing
  • 2. Environmental Changes:
    • Inherent type : seasonal & other natural changes including the changes caused by natural disasters – positive or negative
    • Induced type: due to human use and abuse – negative only
  • 3. Environmental Changes:
    • Local:
    • village, district level
    • Regional:
    • state, national level
    • Global:
    • continental, world level
  • 4. Our concern is to:
    • Map, Measure and Monitor
    • > the natural & man-made world;
    • > locally, regionally and globally
    • on a periodical & real-time basis
  • 5. Global Monitoring
    • Environmental features monitored include :
    • Global vegetation cover
    • Ocean productivity
    • Global biosphere
    • Ocean Temperature
    • Ozone levels
    • Snow and ice
    • Atmospheric pollutants
    • Wave height and direction
  • 6. Ozone Levels
    • Depletion develops in October
    • Changes seasonally
    • Gradually getting larger over time
  • 7. Global Vegetation Cover
  • 8. Ocean Temperature
    • Water is a good approximation of a black body
    • Monitoring climatic events, eg. El Nino
    • Monitor long term climatic change
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  • 11. Remote Sensing Applications Mineral and Rock Spectral Mapping
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  • 18. data model
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  • 34. Local Environmental Monitoring De-forestation
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  • 37.
    • Bush Fire - Detection using smoke
  • 38.
    • Bush Fire - Detection using smoke
  • 39. Remote sensing platforms: LIDAR
    • Canopy surface
  • 40. Remote sensing platforms: SAR (Synthetic Aperture Radar)
    • SAR image of Washington, DC
    • textures are easily differentiated_
  • 41. Remote sensing platforms: SAR (Synthetic Aperture Radar)
    • SAR image of Amazon Basin
    • previous river channels clearly visible
  • 42.