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