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Basic of Remote Sensing III

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Contents
  • Advantages
  • Limitations
  • Applications
Advantages of Remote Sensing:
  • Provides a synoptic view over a large region;
  • Offers Geo-referenced information and digital information;
  • Most of the remote sensors operate in every season, every day, every time and even in tough weather;
Limitations:
  • Can be expensive;
  • Can be technically difficult;
  • Not direct;
  • Measure surrogate variables e.g. reflectance (%), brightness temperature, backscatter;
Applications of Remote Sensing
  • Urban & Regional Planning
Scope:
  • Mapping & updation of city/town maps 
  • Urban sprawl monitoring
  • Town planning
  • Facility management 
  • GIS database development
Benefits:
  • Better decision support, planning & management
  • Rapid information updation
  • Infrastructure development monitoring
  • Spatial information analysis
  • Agriculture
Scope:
  • Crop acreage estimation
  • Crop modeling for yield & production forecast / estimation
  • Crop & Orchard monitoring
  • Soil sensing
  • Mapping of land management practices

Benefits:
  • Timely availability of crop statistics for decision making & planning
  • Crop growth monitoring
  • Soil status monitoring
  • Regular reports regarding total area under cultivation.
  • Flood Damage to Standing Crops
  • Natural Resource Management
  1. Forestry: biodiversity, forest, deforestation
  2. Water source management
  3. Habitat analysis
  4. Environmental assessment
  5. Impervious surface mapping
  6. Hydrology
  7. Mineral province
  8. Geomorphology
  • Forestry
Scope:
  • Satellite image-based forest resource mapping and updating
  • Forest change detection
  • Forest resource inventory
  • GIS database development
Benefits:
  • Availability of baseline information
  • Planning for afforestation strategies 
  • Futuristic resource planning
  • Sustainability of the environment 
  • Wildlife  conservation & development for recreation purpose
  • Timely Intervention in specific areas as and when needed
  • Landuse / Landcover Mapping
Scope:
  • Monitoring dynamic changes
  • Urban/Rural infrastructure 
  • Waterlogging & salinity
Benefits:
  • Assessment of spatial distribution of land resources 
  • Infrastructure monitoring 
  • Availability of usable land 
  • Future planning for better land management for socio-economic development
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