What are the latitude and longitude coordinates for Location B?

What are the latitude and longitude coordinates for Location B?

Turn on the latitude and longitude grid by selecting View > Grid, or by using

the keyboard shortcut CTRL + L. Mac users click + L.

Lines of latitude, or parallels, divide the globe at the Equator, and run parallel in

both the Northern and Southern Hemispheres (Figure 1). Locations in the Northern

Hemisphere are denoted with an N (or a positive number), while locations in the

Southern Hemisphere are denoted with an S (or a negative number). The parallel at

the Equator is 0°N or 0°S, and increases to 90°N (or +90) at the North Pole, and

90°S (or -90) at the South Pole.

Latitude (parallels)

Longitude (meridians)

Figure 1. Lines of latitude (parallels) and longitude (meridians) (Arbogast)

Double-click and select Prime Meridian.

Lines of longitude, or meridians, run from pole to pole. Along the Prime Meridian

(which runs through Greenwich, UK), the Earth is divided into Eastern and Western

Hemispheres. Locations in the Eastern Hemisphere are denoted with an E (or a

positive number), while locations in the Western Hemisphere are denoted with a W

(or a negative number). The Prime Meridian is 0°E or 0°W, and increases to toward

180°E (or +180) or 180°W (or -180).

Latitude and longitude are measured in degrees, minutes, and seconds. Similar to a

clock, where one hour equals 60 minutes, and one minute equals 60 seconds, each

degree of latitude or longitude can be divided into 60 minutes (60’) and each

minute of latitude or longitude can be further subdivided into 60 seconds (60”). For

example, the White House in Washington, DC is located at 38° 53’ 51” N, 77° 02’

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11” W. Latitude and longitude can also be measured in decimal degrees, or degrees

and decimal minutes, by converting the minutes and/or seconds into decimal

fractions. Cardinal directions (North, East, South and West) are replaced with

positive or negative signs. Therefore, the absolute location of the White House in

decimal degrees would be 38.8976, -77.0365.

Click Exit Street View in the top right corner of the Google Earth 3D viewer.

Change your units to degrees, minute and seconds. (Refer to the GETTING

STARTED lab module for directions on how to change latitude and longitude

units).

Double-click and select Location A.

Question 5: What are the latitude and longitude coordinates for Location A?

A. 51N, 114E

B. 114S, 51 E

C. 51S, 114W

D. 51N, 114W

Double-click and select Location B.

Question 6: What are the latitude and longitude coordinates for Location B?

A. 53N 6E

B. 6N, 53E

C. 53S, 6W

D. 53N, 6W

Question 7: Which is closer – the distance between Location A and the

Equator or the distance between Location B and the Equator?

A. Location A and the Equator

B. Location B and the Equator

C. Locations A and B are the same distance from the Equator

D. Cannot discern from the information provided

Question 8: Which is closer – the distance between Location A and the

Prime Meridian or the distance between Location B and the Prime Meridian?

A. Location A and the Prime Meridian

B. Location B and the Prime Meridian

C. Locations A and B are the same distance from the Prime Meridian

D. Cannot discern from the information provided

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Double-click and select Location C.

Question 9: What are the latitude and longitude coordinates for Location C?

A. 50N, 68S

B. 50N, 68W

C. 50S, 68E

D. 50S, 68W

Question 10: Which is farther– the distance between Location B and the

Equator or the distance between Location C and the Equator?

A. Location B and the Equator

B. Location C and the Equator

C. Locations B and C are the same distance from the Equator

D. Cannot discern from the information provided

Question 11: Which is farther – the distance between Location A and the

Prime Meridian or the distance between Location C and the Prime Meridian?

A. Location A and the Prime Meridian

B. Location C and the Prime Meridian

C. Locations A and C are the same distance from the Prime Meridian

D. Cannot discern from the information provided

Collapse and uncheck GLOBAL PERSPECTIVE.

Turn off the latitude/longitude grid. Press CTRL + L. Mac users press + L.

MAP SCALES

Map scale (or scale) is the ratio of the distance between two features or absolute

locations on the map and the distance between the same two features or absolute

locations on the ground. Maps should provide a scale to the user; typically, map

scales are shown in the bottom margin of the map.

Map scales are expressed in the following ways:

 Ratio  Representative fraction  Verbal scale (also called a lexical scale)

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 Bar scale (also called a scale bar, graphic scale, or graphical scale).

An example of each of these map scales is illustrated below.

Scale Expression

Ratio 1:12,000

Representative Fraction (RF) 1/12,000

Verbal 1 inch equals 1,000 feet

Scale Bar

Expand MAP SCALES and then double-click and select Boothbay Harbor

(Note: The topographic map might take a few seconds to display). To close the

citation, click the X in the top right corner of the window.

Question 12: How is the scale on this map expressed or presented (Hint:

look toward the bottom of the map image)?

A. Scale bar and RF

B. RF and Verbal

C. Verbal and Ratio

D. Scale Bar and Ratio

If you enlarge (zoom in) or reduce (zoom out) of the map, the scale of the image

changes, but the scales found the map do not. It is important to note only a bar

scale can be used to make distance calculations to a map that is enlarged or

reduced because it is the only map scale that remains correct if the map size

changes.

If a bar scale is not provided, it is important to know how to calculate distance. In

Google Earth, the Ruler tool will help you calculate the approximate distance

between two (or more) points.

To calculate scale, we will use the equation

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