261446 Information Systems Week 7 Securing Information Systems.
Geograpic Information Systems
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Transcript of Geograpic Information Systems
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University of Trinidad and
Tobago
Corinth CampusCourse: EDFN112B- Educational Technology
Student Name: Christina Sookdeo
Student ID: 52927
Assignment Due date: 17th February, 2011
Intstructor: Mr. R. Birbal
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GEOGRAPIC
INFORMATION
SYSTEMS
(GIS)http://www.youtube.com/watch?v=kEa
MzPo1Q7Q
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INTRODUCTION TO GEOGRAPHIC
INFORMATION SYSTEMS
• The first GIS was created in 1962 in Canada by the
federal Department of Forestry and Rural Development.
• It was developed by Dr Roger Tomlinson and called
the Canada Geographic Information System.
• GIS is mostly targeted towards organizations.
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DEFINITION
WHAT IS A GEOGRAPHIC INFORMATION
SYSTEM?A Geographic Information System (GIS) is a
collection of computer hardware, software
and geographic data used to analyse and
display geographically referenced
information.
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GIS SOFTWARE PACKAGES
The most popular GIS software packages are:
ESRI
MapInfo
IDRISI
Manifold
InterGraph GeoMedia
SmallWorld
GRASS
MS MapPoint
ERDAS Imagine
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WHAT CAN GIS DO?Map Locations
Mapping where things are lets you find places that have
the features you're looking for, and to see where to take
action.
GIS lets you:•Find a feature on a map
•Find patterns of distribution on a map
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Map Quantities
WHAT CAN GIS DO?
(CONTINUED)
• People map quantities (like where the most and least are)
to find places that meet their criteria and take action, or to
see the relationships between places.
• This gives an additional level of information beyond
simply mapping the locations of features.
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Map Densities
WHAT CAN GIS DO?
(CONTINUED)
•A density map lets you measure the number of features
using a uniform area unit, such as acres or square miles, so
you can clearly see the distribution.•Mapping density is especially useful when mapping areas,
such as census tracts or counties, which vary greatly in
size.
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APPLICATIONS OF GIS
The possible applications of such a tool would be vast in number, but here are a few examples of the possible uses of GIS:
• Earthquake Mapping
• Market Research
• Demographics
• Health
• Research
• Census
Data
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If you are curious…
Here are some links to webpages where you can
make you own GIS map online!
http://www.esri.com/mapping-for-everyone/index.html
http://mapapps.esri.com/create-map/index.html
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BIBLIOGRAPHY
Esri- The GIS Software Leader, Mapping Software and Data, (1995-2011). Retrieved February 12, 2011, from
http://www.esri.com/what-is-gis/index.html
• GIS Lounge and DM Geographics, LLC, GIS Lounge.
Information about geographic information systems, GPS,
cartography, and geography. (1999 – 2011). Retrieved on
February 12, 2011 from
http://gislounge.com/what-is-gis/• GIS Development, Mapping GIS Milestones: 1960-1970.
Retrieved on February 12, 2011 from
http://www.gisdevelopment.net/history/1960-1970.htm
• GIS.com, the Guide to Geographic Information Systems.
(1995–2011 Esri). Retrieved on February 13, 2011 from
http://www.gis.com/