Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GIS :p > Chapter 2 Reading > Flashcards

Chapter 2 Reading Flashcards

pg 45-77, pg 45-61

1
Q

aggregated

A

to combine measurements from one set of spatial units to a
larger unit using a regular or hierarchical scheme, such as adding
county populations to determine the state populations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

alpha

A

a color parameter that defines the opacity or transparency of a
color

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

bivariate choropleth map

A

a graduated colors map that compares
the spatial patterns of two different numeric attributes by mixing
two ranges of colors together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

categorical data

A

data that place objects into unranked groups;
examples are land use and geology data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

chart map

A

a map showing several different attributes in chart form,
with one chart for each feature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

choropleth map

A

a map in which each feature, such as a state, is
colored according to the values in a data field

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

classification

A

assigning features to two or more groups based on
numeric values in an attribute field

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

classified

A

a raster display method that divides values into two or more
groups based on their numeric values

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

CMYK

A

a method of specifying color using mixtures of cyan, magenta,
yellow, and black; primarily used in printing and publishing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

colormap

A

a set of defined colors matched to specific image pixel
values, which determines how the image will appear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

connotation

A

a typical emotional reaction elicited by certain colors or
symbols

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

continuous

A

data that take on a variety of values and that change
rapidly across a data set, such as elevation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

convention

A

a symbol for mapping that is commonly chosen and
understood to have particular meaning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

defined interval

A

a classification method in which the user specifies a
size range for all the classes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

discrete

A

described data that represent distinct spatial objects such as
wells, roads, or counties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

divergent color set

A

a set of colors with a neutral middle value that
grades to increasingly saturated colors of different hues above and
below

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

dot density map

A

a map representing attribute values by a
proportional number of randomly placed dots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

dynamic labels

A

labels determined from an attribute and
automatically placed on a map each time features are drawn and
redrawn

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

equal interval

A

a classification method in which the user specifies a
number of classes that have equal size ranges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

geometric interval

A

a classification method that bases the class
intervals on a geometric series in which each class is multiplied by a
constant coefficient to produce the next higher class

21
Q

graduated color map

A

a map that divides numeric data from a
polygon feature class into classes based on value and displays the
classes with different colors

22
Q

graduated symbol map

A

a map that divides numeric data from a line
or point feature class into classes based on value and displays the
classes with different size or thickness of symbols

23
Q

histogram

A

a graph showing the number of values from a data set that
occur in evenly spaced ranges known as bins

24
Q

HSV

A

a method of specifying color based on hue, saturation, or value

25
Q

hue

A

(in HSV color model) the shade of a color, such as red, green, or
blue, measured on a 0 to 360 scale

26
Q

image

A

a raster data layer, usually referring to a raster that displays
brightness values, as in a photograph

27
Q

interval data

A

values that follow a regular scale but have no natural
zero point, such as degrees Celsius or pH

28
Q

Jenks method

A

a way to classify numeric data into ranges defined by
naturally occurring gaps in the data histogram

29
Q

layer

A

a reference to a feature class and its associated properties

30
Q

layer file

A

a file that stores a pointer to spatial data along with
information on how to display it

31
Q

layer properties

A

settings that control how a data set is to be
displayed or viewed

32
Q

modifiable areal unit problem (MAUP)

A

statistical and visual
issues caused by aggregating measured data using arbitrary areal
units such as political boundaries

33
Q

nominal data

A

values that name or identify an object, such as a street
name

34
Q

normalize

A

to divide the values of an attribute field by the total of the
field or by the values in another field

35
Q

ordinal data

A

data values that indicate a rank or ordering system

36
Q

proportional symbol map

A

a map that displays attribute values with
marker or line symbols that are proportional in size relative to the
value of the feature

37
Q

quantile

A

a classification method that divides the data into the
specified number of quantiles so that each class has the same
number of features

38
Q

ratio data

A

data having a regular scale of measurement and a natural
zero point, such as precipitation or population

39
Q

RGB composite

A

an image displayed by assigning one band of
brightness information to each red, green, and blue color gun in a
display monitor

40
Q

saturation

A

(in HSV color model) the intensity of a color measured on
a scale of 0 to 100

41
Q

slice

A

to divide the values in a raster into a specified number of even
classes

42
Q

source data

A

(1) a spatial data file that provides the features for a map
layer; (2) the original information used to develop a spatial data set

43
Q

standard deviation

A

a classification scheme in which the class breaks
are based on the standard deviation values of the data being mapped

44
Q

stretched

A

a display method that spreads the data values over the
entire range of symbols available; see also stretch

stretch: to spread the values of an image to cover the entire range of
symbols available, often supplemented by ignoring the tails of the
distribution; see also stretched

45
Q

style

A

a collection of map symbols and colors that are stored together
and used together

46
Q

thematic raster

A

a raster that contains categorical or nominal data
values, such as land use codes or soil types

47
Q

Tobler’s law

A

measurements taken at locations close together are more
likely to be similar than measures taken at locations further apart

48
Q

unique values map

A

a map in which each attribute value is assigned
its own symbol

49
Q

value

A

(in HSV color model) the darkness or lightness of a color on a
scale of 0 to 100

GIS :p (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions