GEOGRAPHICAL INFORMATION SYSTEM
AIM To apprise the house about GIS, historical background and recent developments. Geographical Information System
SEQUENCE Introduction System Description Historical Background Recent Developments Recommendations Conclusion Q&A Geographical Information System
INTRODUCTION What is GIS? Geographical Information System
INTRODUCTION Information Management System Cont’d… Geographical Information System
INTRODUCTION Cont’d… Capture Geographical Information System
INTRODUCTION Cont’d… Analyze Geographical Information System
INTRODUCTION Spatial Information Cont’d… Geographical Information System
INTRODUCTION Spatial Information What is Where When! Cont’d… Geographical Information System
INTRODUCTION Better decisions using geography Cont’d… Geographical Information System
INTRODUCTION Utilities Organizations Police Forces Cont’d… Geographical Information System
SYSTEM DESCRIPITION Geographic Data : Fuel for GIS Geographical Information System
SYSTEM DESCRIPITION Geographic Data Analog Cont’d… Geographical Information System
SYSTEM DESCRIPITION Geographic Data Digital Cont’d… Geographical Information System
DATA CAPTURING TECHNIQUES Cont’d… Map Scanning Geographical Information System
DATA CAPTURING TECHNIQUES Cont’d… Aerial Photography Geographical Information System
TYPES OF DATA MODEL GIS Data Model Raster Model Vector Model Cont’d… Geographical Information System
HISTORY OF GIS Geographical Information System
HISTORY OF GIS 1854 Dr John Snow London Cholera Outbreak Cont’d… Geographical Information System
HISTORY OF GIS Early 20th Century Photozincography Layered Maps Cont’d… Early 20th Century Photozincography Layered Maps Geographical Information System
HISTORY OF GIS 1960 First GIS Dr Roger Tomlinson Canada Geographic Cont’d… 1960 First GIS Dr Roger Tomlinson Canada Geographic Information System (CGIS) Geographical Information System
HISTORY OF GIS 1964 Howard Fisher Cont’d… Geographical Information System
HISTORY OF GIS 1964 Laboratory for Computer Cont’d… 1964 Laboratory for Computer Graphics & Spatial Analysis Geographical Information System
HISTORY OF GIS 1970s SYMAP GRID ODYSSEY Cont’d… Geographical Information System
HISTORY OF GIS End of 20th Century Cont’d… Geographical Information System
HISTORY OF GIS Early 20th Century Open Source GIS Service based GIS Cont’d… Early 20th Century Open Source GIS Service based GIS Geographical Information System
RECENT DEVELOPMENTS Reduced GIS production time Geographical Information System
RECENT DEVELOPMENTS Field Data Collection Devices Range Azimuth Cont’d… Field Data Collection Devices Range Azimuth Inclination Height Difference Geographical Information System
RECENT DEVELOPMENTS Field Data Collection Devices Binoculars Cont’d… Field Data Collection Devices Binoculars Laser Rangefinder Digital Compass Inclinometer Geographical Information System
RECENT DEVELOPMENTS 3D Scanning Cont’d… Geographical Information System
RECOMMENDATIONS Geographical Information System
CONCLUSION Change in Emphasis Past Present / Future Attribute Tagging Analysis Attribute Tagging Data Conversion Analysis Attribute Tagging Data Conversion Geographical Information System
CONCLUSION Cont’d… Geographical Information System
CONCLUSION Cont’d… Man must rise above the earth to the top of the universe and beyond, for only then will he fully understand the world in which he lives… Socrates Geographical Information System
Geographical Information System
Geographical Information System