role of information technology in enivronment. remote sensing GIS world wide web

2. Contents
 INTRODUCTION
 REMOTE SENSING
A) Components Of A Remote Sensing System
B) Functions
C) Applications
 DATABASE
A) Application
 GEOGRAPHICAL INFORMATION SYSTEM (GIS)
 SATELLITE DATA
 WORLD WIDE WEB(WWW)

3.  Information technology means collection, processing
storage & dissemination of information.
 IT plays a vital role in the field of environment
education
 The internet facilities, information through satellites,
www and geographical information provides up to
date information on various aspects of environment
and weather
INTRODUCTION

4. REMOTE SENSING
 It refers to any method which can be used to gather
information about an object without coming in
contact with it.
 Gravity, magnetic, electromagnetic forces could be
used for remote sensing.
 Now remote sensing is used to denote identification of
earth features by detecting the characteristic electro
magnetic radiation.

5. Components Of A Remote Sensing System
 The system consists of a sensor to collect radiation
 Other important parts are a platform, an aircraft, a
balloon, rocket and satellite.
 The information received by the sensor is suitably
manipulated and transported back to earth.
 The data’s are reformed and processed on the ground
to produce photographs, computer compatible
magnetic taps and digital storage medium

7. Functions of remote sensing
 1.Origin of electro magnetic energy.
 2. Transmission of energy from the source to the
surface of the earth and its interaction with the
intervening atmosphere.
 3. Interaction of energy with the earth surface.
 4. Transmission of reflected or emitted energy to the
remote sensor an a suitable platform through
intervening atmosphere.
 5. Transmission or recording of the sensor output.
 6. Collection of ground truth and other information.
 7. Data analysis and interpretation.

8. Dectecting earth by using remote sensing

9. Applications
 In agriculture → RS provide information about land,
water management, use of seeds, fertilizer input etc.
 Forestry → Information on type ,density & extent of
forest cover, wood volume, forest fire, pest etc.
 Land cover → Gives spatial information on land, RS
data is converted to map
 Water resources → surface water body mapping,
ground water targeting, flood monitoring, water
quality ,monitoring, run-off modeling, irrigation water
management.

10. Remote sensing in agriculture and water resource

11. DATABASE
It is the collection of inter related data
on various objects. In the computer the
information of database is arranged in
a systematic manner.

12. Application
 MINISTRY OF ENVIRONMENT AND FOREST
compile data on biotic communites, diseases like
HIV, malaria, fluorosis
 NATIONAL MANAGEMENT INFORMATION
SYSTEM (NMIS):DB on R&D projects, research
scientists etc.
 ENVIRONMENTAL INFORMATION SYSTEM
(ENVIS) :DB on pollution control area, clean
technology, biodiversity, remote sensing,
environmental management, desertification etc

14. GEOGRAPHICAL INFORMATION
SYSTEM
 It is a technique of superimposing various thematic
maps using digital data on a large number of inter-
related aspects.

15. Application
 Different thematic maps having digital
information on water resources Soil type,
forest land, crop land, grass lands are
superimposed on a layered form in
computer using software.
 Interpretation of polluted zones, degraded
lands.
 To check unplanned growth and related
environmental problems.

17. SATELLITE DATA
 It helps in providing correct and reliable
information forest cover
 Provide information about forecasting
weather, smog, ozone depletion
 Reserves of oil, minerals can be discovered.

18. Satellite data application in environment

19. WORLD WIDE WEB(WWW)
 More current data is available on world wide web
 The World Wide Web is the primary tool billions
use to interact on the Internet
Important online learning center
 Www .mhhe.com environmental science.
 Multimedia Digital content manager (DCM) in the
form of CD ROMS.

20. Application
Online learning.
· Digital files or photos, animations
on environmental studies.
www create social awareness about
enviroment around world