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?

18
Q

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

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?

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
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.
1. Conical 2. Cylindrical 3. Planar
26
Terms representing raster data.
grid, raster map, surface cover, image
27
Raster vs. Vector Data
``` Raster = field based Vector = object based; point, line, polygon ```
28
Approximates the shape and size of the Earth
Spheroid/Ellipsoid (Clarke 1866, GRS 80, WGS 84)
29
A mathematical model of the Earth, serves as the ref or base for geographic coordinates of a location
Datum (NAD 27, NAD 83, WGS 84)
30
Different PCS' (statewide, nationwide, and universal)
TSMS, SPC, UTM
31
Central vs Standard meridian
Central defines the origin of map projection, standard is the longitude used to scale out a map, globe or projections
32
Modeling process
1. Define the goals of the model 2. Break down the model into elements 3. Implement and calibrate the model
33
Binary vs Index model
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
Join
Brings together two tables, given that each table has a common key
35
Relate
Temporarily connects two tables but keeps the tables separate
36
Filling each cell with the value of the corresponding cell or cells in an original grid
Z Resampling
37
Z Resampling (nearest neighbor, bilinear interpolation, and cubic convolution)
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