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GIS 551 > Final > Flashcards

Final Flashcards

1
Q

Who is recognized as the father of GIS?

A

Roger Tomlinson

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2
Q

Which government agency developed TIGER (Topologically Integrated geographic Encoding Referencing) data?

A

US Census Bureau

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3
Q

Which of the following features is an example of a discrete feature?

A

Stream

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4
Q

Who is the author of Design with Nature?

A

Ian MacHarg

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5
Q

Which of the following features is an example of a continuous feature?

A

Elevation

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6
Q

Which of the following file formats is NOT for raster data?

A

TIN

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7
Q

What ESRI product is free that reads pmf (published map files) file?

A

ArcReader

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8
Q

Which is a model approximating the shape and size of the earth?

A

Spheroid and ellipsoid

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9
Q

Which license level of ArcGIS Desktop do we use in our GIS Labs?

A

Advanced (ArcInfo)

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10
Q

Which of the following statements is NOT true about a meridian with a scale factor of a map projection?

A

The meridian must be right on the origin of the map projection

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11
Q

Which ArcGIS Desktop application allows you to manually digitize land cover type polygon of your study area?

A

ArcMap

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12
Q

Which of the following statements is true?

A

A coordinate system may have more than one map projection

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13
Q

Which of the following statement sis true about data format in ArcGIS?

A

Coverage and geodatabase

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14
Q

Which of the following symbol properties is used for displaying quantitative attribute?

A

Size

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15
Q

A map usong a color scheme to display the county population of Texas is a…

A

Thematic map and choropleth map

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16
Q

when the coordinate system of a GIS dataset shows as “unkwon”, which tool is needed in order to assign spatial reference to it?

A

Define Projection

17
Q

What is the most important part of a map composition?

A

Map Body

18
Q

What is the output feature type from a line-in-polygon overlay process using Intersect tool?

A

Line

19
Q

What are the basic units of the vector data model?

A

Points and their coordinates

20
Q

Which of the following statements is NOT true about the topology in vector data?

A

Storing the spatial reference information

21
Q

Which map manipulation process aggregates features that have the same attribute value?

A

Dissolve

22
Q

Which of the following statements is true for vector data model compared with raster data model?

A

The computational efficiency is high

23
Q

What are the two components of geographically referenced data and how do they work together in georelational data model?

A

spatial data representing its location, and attribute data representing its characteristics

24
Q

What is false easting and false northing in a projected coordinate system (PCS) and what is the purpose of it?

A

False easting and northing values are usualy applied to ensure that all x and y values are positive

25
Q

Draw the three types of map projections based on the different geometric objects used with relation to the globe. Specify the name of each projection.

A
  1. Conical
  2. Cylindrical
  3. Planar
26
Q

Terms representing raster data.

A

grid, raster map, surface cover, image

27
Q

Raster vs. Vector Data

A 
Raster = field based
Vector = object based; point, line, polygon
28
Q

Approximates the shape and size of the Earth

A

Spheroid/Ellipsoid (Clarke 1866, GRS 80, WGS 84)

29
Q

A mathematical model of the Earth, serves as the ref or base for geographic coordinates of a location

A

Datum (NAD 27, NAD 83, WGS 84)

30
Q

Different PCS’ (statewide, nationwide, and universal)

A

TSMS, SPC, UTM

31
Q

Central vs Standard meridian

A

Central defines the origin of map projection, standard is the longitude used to scale out a map, globe or projections

32
Q

Modeling process

A
  1. Define the goals of the model
  2. Break down the model into elements
  3. Implement and calibrate the model
33
Q

Binary vs Index model

A

Binary - uses logical expressions to select map features from a composite map or multiple grids
Index - calculates the index value for each unit area and produces a ranked map based on the index value

34
Q

Join

A

Brings together two tables, given that each table has a common key

35
Q

Relate

A

Temporarily connects two tables but keeps the tables separate

36
Q

Filling each cell with the value of the corresponding cell or cells in an original grid

A

Z Resampling

37
Q

Z Resampling (nearest neighbor, bilinear interpolation, and cubic convolution)

A

NN - use the value of the nearest cell
BI - fill with the weighted average of the four nearest cell values
CC - fill with the weighted average of the 16 nearest cell values

GIS 551 (2 decks)

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