What is GIS? G eographical I nformation S ystems Formally started in the 60’s, although probably...
-
date post
19-Dec-2015 -
Category
Documents
-
view
216 -
download
2
Transcript of What is GIS? G eographical I nformation S ystems Formally started in the 60’s, although probably...
What is GIS?
Geographical Information Systems Formally started in the 60’s, although
probably manually before this late 80’s and the 90’s GIS gained
momentum Decreased cost of computers Increasingly user friendly software Availability of spatial data Improvement of complimentary technologies –
remote sensing, GPS Appearance of formalized GIS training
What is GIS? GIS is a very large and multidisciplinary
field An all encompassing definition of GIS is
difficult to form. To help us better what GIS is we need
to break it down….
The ‘G’ of GIS Geographic(al) indicates that we are
dealing with data that is spatial in nature
That is data that has a coordinate associated with it, usually geographic
The ‘I’ of GIS Identifies that we have some sort of
data component involved Spatial data – where things are Attribute data – about what is there
Hydrant_ID: A01245Flow: 35m3/sec.Diameter: 2 In.
The ‘S’ of GIS Implies there are multiple components
linked to each other To be successful all components must
be in place
Users
Data Computers
Software Knowledge
GIS
Functions of GIS GIS is used to…
Capture Storage Manipulation Retrieval Analysis Display
This is only possible with trained people!
GIS is not… GPS Just map making Software
Spatial Data
City of Brandon• An ownership layer
was developed with the boundaries for every parcel of land within the city limits.
• This ownership layer is used for a number of practical applications, including:• Taxation assessment• Land use planning
purposes• Building permit
applications
Manitoba Conservation Aerial survey
recorded GPS coordinates for deer, elk and moose sightings in the Spruce Woods area.
Locations then entered into a GIS to help analyze and organize migration patterns of large game found in the area.
Manitoba Hydro Providing a reliable
electricity source is critical in the potentially frigid Manitoban environment
Manitoba Hydro uses GIS to help pinpoint causes of power failures and quickly restore service to their customers.
Manitoba Water Conservation Districts
Throughout Manitoba water conservation districts are using GIS to better manage their watersheds, including: Soil erosion models Waterfowl capacities Ground water models Surface water run-off
potential
Manitoba Land Initiative• The Manitoba Land
Initiative Web site is the source for geo-spatial information from the Government of Manitoba.
• With the creation of this free website available to all, the field of GIS will only continue to grow in Manitoba
http://web2.gov.mb.ca/mli