Geographic

Information

SystemDr B P Lakshmikantha

Scientist, KSRSAC

What is GIS?

GGeographiceographic

IInformationnformation

SSystemystem

……a a systemsystem which handles which handles

informationinformation about about geographygeography....

GIS

“Set of tools for –

• Collecting

• Storing

• Retrieving

• Transforming &

• Displaying

…..geographically referenced spatial data

with its corresponding attribute information

to meet specific requirements

GISGISBORN IN THE LATE 50’S … FIRST SOFTWARE – IN LATE 70’S MULTIPLE INFORMATION STORAGE

REVOLUTION IN IT

• COMPUTERS • REMOTE SENSING• GPS• INTERNET

COMMUNICATION TECH

INCREASE IN

• SPEED • FUNCTIONALITY

• USER FRIENDLINESS• VISULAISING IMPACT• INFLUENCE OF EVERY DAY DECISIONS

QUERY AND STATISTICAL ANALYSIS

PLANNING OF PROJECT

BETTER DECISIONS VISUAL ANALYSIS

IMPROVE ORGANISATIONAL INTEGRATION

Spatial vs. Non-spatial

Spatial Non-spatial

Objects – spread over earth’s surface

Attributes of that objects

Map, Image, Model Description, Database

Where What

Well, Building Depth, Ownership

interdependant

A network of satellites that A network of satellites that continuously transmit coded information, continuously transmit coded information, which makes it possible to precisely which makes it possible to precisely identify locations on earthidentify locations on earth

Uses : Uses : Navigational ToolNavigational ToolSurveyingSurveyingReal-time MappingReal-time Mapping

Global Positioning SystemGlobal Positioning System

Applications of GIS Natural Resources Management

Environmental Planning

Water Resource Management

Agriculture

Forestry

Coastal Management

Urban Planning

Transport/Fleet Management

Facilities Management