PreLab Exercise: Topographic Maps & Coordinate Systems
Name:_________________________________________________
In the latitude/longitude coordinate system, angular distance north or south of the equator is described in terms of latitude / longitude (circle correct answer).
In the latitude/longitude coordinate system, angular distance east or west of the prime meridian is described in terms of latitude / longitude (circle correct answer).
In the latitude/longitude coordinate system, 1 degree = _______ minutes.
In the latitude/longitude coordinate system, 1 minute = ________ seconds.
The north pole has a latitude of ______ degrees north.
The south pole has a latitude of _______ degrees south.
The equator has a latitude of ______ degrees.
The prime meridian has a longitude of ______ degrees.
In the Public Land Survey (PLS) coordinate system, land is divided into strips. Strips that measure north-south distance from a base line are called ___________________ and strips that measure east-west distance from a principal meridian are called ________________.
Where a Township and Range intersect, they depict a 36 square-mile box, which is divided into 36 smaller boxes called ______________.
In the PLS system, a section has an area of ______ square mile.
The proportional scale of a map is 1:300,000. This means that one unit on the map / in real life (circle correct answer) equals 300,000 units on the map / in real life (circle correct answer).
The verbal scale of a map is 1 inch = 100 feet. This means that on inch on the map / in real life (circle correct answer) equals 100 feet on the map / in real life (circle correct answer).
A line of equal elevation is called a ___________________ line.
The elevation difference between two adjacent contour lines is called the _______________ interval.
Describe the general shape of the contours that represent a hill or mountain:
In stream valleys, the contour lines make a "V". According to the rule of Vs, the "V"-shaped contours in a stream valley point upstream / downstream (circle correct answer).
Sometimes the contour lines also make a "V" shape along ridges. In this case the "V" points to higher / lower elevations (circle correct answer).
How are closed depressions (i.e., indentations) represented on a contour map?
Closely spaced contour lines imply a steep / gentle (circle correct answer) slope.
Widely spaced contour lines imply a steep / gentle (circle correct answer) slope.