Introduction to Geomatics Flashcards Preview

Geography 222 Midterm > Introduction to Geomatics > Flashcards

Flashcards in Introduction to Geomatics Deck (18)
Loading flashcards...
1
Q

What is the first law of geography?

A

Everything is related to everything but near things are more related

2
Q

Shape of earth?

A

Ellipsoid or sphere or “earth shape”

3
Q

How do you collect spatial (geographic) data?

A
  1. ) Global positioning system
  2. ) Remote sensing
  3. ) Field observation, data collection
  4. ) Census and other remote field methods
4
Q

What are some examples of geomatics?

A

1Geographic information systems
2Cartography
and
3remote sensing and aerial photography

5
Q

GIS

A

Consists of a digital database system specially designed for entering, storing and manipulating spatially referenced data. It also includes the ability to analyze, represent and manipulate spatial information.

6
Q

Cartography

A

science of map making

7
Q

Remote sensing and Aerial photography

A

Making physical observations without direct contact or touch.

8
Q

Define Geographic information

A

Phenomenom on or near surface

9
Q

Define Digital Geographic Information

A

Allows us to bring it to a GIS software

10
Q

what is the area of study?

A

The place we are interested in studying ex.) City of Saskatoon

11
Q

What is the Unit of analysis?

A

Has to be smaller than area of study. More detailed and zoomed in. ex.) Neighborhoods or blocks.

12
Q

Global Positioning system

A

There are 24 satellites orbiting in 6 different planes, 4 satellites in each plane. In order to calculate a location you need 3 satellites.
- Satelites submit a time not a location signal, and they all submit the same time. But the signals reach you at different times. Trilatersation is the formula that is used.

13
Q

What is GIS

A

Geographic Information system ( special kind of information system)

14
Q

How can GIS be applied?

A
  1. ) Human Geography
  2. ) Physical Geography
  3. ) Geographic techniques
15
Q

Types of GIS operations

A

Input, storage, manipulation, communication and retrievl

16
Q

Georeference

A

The act of coordinating collected data to a common global reference system, other related topics include geo-coding and address matching

17
Q

Geographic Information Science

A

The science related to examining and studying the technologies associated with collecting stroing and processing spatial data. The primary purpose is to study and expand the ntechnology.

18
Q

Geographic information studies

A

Studies related to the societal context of geographic information system