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GIS > GIS > Flashcards

GIS Flashcards

1
Q

what crisis led to the first use of mapping techniques

A

the cholera outbreak in London (1854)

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2
Q

what was the leading medical theory in the time of the cholera outbreak

A

masma - disease was called by smell

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3
Q

who is the grandfather of GIS

A

Ian McHarg

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4
Q

what did Ian McHarg pioneer

A

argued the idea that humans should integrate with nature and strongly

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5
Q

what was Ian McHarg fundamental in forming

A

the basic concept used in GIS (sieve mapping)

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6
Q

what is sieve mapping

A

mapping by stacking different layers over each other to tell the story of the area

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7
Q

who is the father of GIS

A

Roger Tomlinson

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8
Q

what did Roger Tomlinson create

A

the Canadian Geographic System (CGIS)

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9
Q

who created the first operational GIS

A

Roger Tomlinson

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10
Q

who created the first computer mapping software

A

Howard Fisher

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11
Q

who founded ESRI

A

Jack and Laura Dangermond

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12
Q

who created the first COMMERCIAL GIS product

A

ESRI

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13
Q

what is Volunteered geographic information

A

user generated or crowdsourced geospatial content

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14
Q

how does VGI gain geolocation data

A

portable technology

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15
Q

what is the benefit to geospatial cloud

A

allows for increased operational efficiency and allows analyze large data sets

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16
Q

what is GIS

A

computer based hardware and software used to capture, analyze, manipulate and visualize geospatial data

17
Q

what separates GIS from other software

A

the ability to handle spatial data

18
Q

what is the toolbox in GIS

A

system for capturing, checking, manipulating and displaying data

19
Q

what are some things GIS tools can do

A
  1. model data
  2. manipulate data
  3. monitor change
  4. identify trends
20
Q

can GIS store non-spatial data and spatial data

A

YES

21
Q

what does G consider in GIS

A

geographical
- any data with spatial coordinates (points, lines, polygons, rasters)

22
Q

what does I mean for GIS

A

information
- databases and data integration
0- non spatial data

23
Q

what does S mean in GIS

A

system
- integration of data and tools

24
Q

what part of GIS are users a part of

A

S - System

25
Q

what are the five steps for GIS

A
  1. ask
  2. acquire
  3. examine
  4. analyze
  5. act
26
Q

what is metadata

A

describe information about a data file

27
Q

what is a geodatabase

A

single folder that can hold numerous files with almost unlimited space

28
Q

what are two features in a geodatabase

A
  1. feature class
  2. feature dataset
29
Q

contrast feature class and dataset

A

class
- single data layer (point, line, polygon)

dataset
- grouping of multiple feature classes

30
Q

what is an affective way of storing data

A

feature dataset

31
Q

what does the catalog do in GIS

A

allows you to view, create and manage items in a project

32
Q

what are two types of data

A
  1. discrete object view
  2. raster data
  3. continuous field view
33
Q

what is discrete object view

A

data representing the world by a series of separate objects

34
Q

what are examples of discrete object data

A
  1. points
  2. lines
  3. polygons
35
Q

contrast polygons, lines and points

A

points
- simple set of coordinates

lines
- one dimensional object that connects starting and endpoints

polygons
- 2D object that forms an area from a set of lines

36
Q

what is continuous field of view data

A

data that views the world as items that vary across earth’s surface as a CONSTANT field

37
Q

examples of continuous field data

A
  1. noise
  2. precipitation
  3. temp
  4. elevation
38
Q

raster data model

A

spatial model that uses an array of EQUAL sized cells arranged in rows and columns

39
Q

what is the main type of continuous data

A

raster data

GIS (5 decks)

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