Introduction to GIS

Question 1

What is Geospatial data?

Answer 1

Where it is
Spatial aspect point that you are interested in.

Question 2

What is attribute Data?

Answer 2

Tell you what it is.
Gives info about what you are looking at

Question 3

What is metadata?

Answer 3

Data about data
tells you how and where the data was collected

Question 3

What is GISystems?

Answer 3

Places emphasis on tools and technology.
A computer system for capturing, storing,
querying, analysing and displaying geospatial data

Question 4

What is GIScience?

Answer 4

Deals with generic issues
Research on:
▪ Industry standards like metadata
▪ Map Projections
▪ Accuracy

Question 5

What is GIT?

Answer 5

Includes all types of
computer systems and tools used in processing georeferenced
information, including remote sensing, global navigation satellite
systems, & GIS.

Question 6

What are the related fields of study ?

Answer 6

• Geography
• Cartography and Surveying
• Photogrammetry
• Remote Sensing
• Geocoding/geo-processing
• Global Navigation Satellite System (GNSS – one type is
  Global Positioning System (GPS)
• IT Infrastructure and Human Resources

Question 7

What is remote sensing?

Answer 7

Uses satellites & collects info about earth.
Diff satellites collect diff geospatial data.
Satellites send signals to reciever stations which is turned to images.

Question 8

What is GNSS?

Answer 8

Global Navigation Satellite System
Earth orbiting satellites that provides precise (100 m to sub/cm) location on Earths surface

Question 9

Why do we use GIS?

Answer 9

1. Save money and promote efficiency
2. Improve Communications
3. Make Clear Decisions - access to more relevant info
4. Easily Track Data & Records

Question 10

What are the components of GIS?

Answer 10

1. Hardware -computers
2. Software - tools for input, manipulation and output of geographic data
3. Data
4. Peolpe - operators
5. Infrastructure -uses geospatial, attribute and meta data

Question 11

Geographic questions

Answer 11

where
how
what

Question 12

Brief History of GIS

Answer 12

took off in the 80’s :
Commercial GIS software
cost a lot

early mid 90’s :
graphical interface
affordable hardware and software.

00’s :
Internet and GUI’s
Download with weblinks = speedy

Future:
Integration of remote sensing with GIS and Data Science

Question 13

According to chang what is a GIS system?

Answer 13

a computer system for capturing, storing, querying, analyzing, and displaying geospatial data