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