Maps and Data Analysis

Exam #2 Review

 

Terms


magnetic north/true north

magnetic declination

grid north

back bearing/back azimuth

Radio direction finding (RDF)

Loran (radio navigation system)

altimeters (aneroid, radio)

contour interval

Layer tints (related to contour lines)

hill shading

profile (chap.9)

intervisibility

gradient

cirque

U-shaped Valley

Moraine

Horn

Meander Scar

Oxbow Lake

Floodplain

choropleth map

prism map

dasymetric map

dot map

dead reckoning

selective availability

isogonic chart/map

linear interpolation


 

 

Discussion

 

1.  Know the system of giving direction via azimuth (0-360 degrees).

 

2.  Describe the U.S. military’s Global Positioning System.

 

3.  What are the three main segments of the GPS?

 

4.  What are the different types of contour lines?  Explain each.

 

5. What are “physical models”?  Why is it necessary to introduce vertical exaggeration on these maps?

 

6.  What are some of the rules that govern the drawing/creation of contour lines on a map?  Be able to interpret the spacing of contour lines on a map.

 

7.  Generally, what is “slope”?  Be able to determine % slope and degree slope. 

 

8.  There are literally 100s of topographic features that can be determined from topographic features.  Chapter 10 mentions a few from a number of different geomorphic/geologic processes.  For this exam I’d like for you to be familiar with three categories of features:  1) Major Drainage Patterns, 2) Major floodplain features, and 3) Some major features of Mountain Glaciation.  Much of this relates to Lab #7.

 

 

 

 

 

 

 

9.  What are the FOUR levels of data measurement (types of data)?  List each and provide an example of each.

 

10.  List at least three different methods of classing data for choropleth maps.  Explain each.

 

11. Define Isolines.  What are the two types of isolines?  Explain each.

 

12.  What are cartograms?  What are the different types of cartograms?

 

13.  List other types (other than cartograms) of Special Purpose maps.  (Chapt.14).

 

14.  Be familiar with all material on the labs.