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Chapter 15: Problem 4

What are the minimum and maximum values for latitude and longitude?

Short Answer

Expert verified
Latitude: -90掳 to 90掳, Longitude: -180掳 to 180掳. These are the minimum and maximum values.

Step by step solution

01

Understanding Latitude

Latitude is a measure of how far north or south a location is from the Equator, measured in degrees. Latitudes run from the Equator, which is 0掳, to the poles, which are 90掳N (North Pole) and 90掳S (South Pole). In summary, the minimum and maximum values for latitude are -90掳 and 90掳 respectively.
02

Understanding Longitude

Longitude measures the distance east or west from the Prime Meridian, which is 0掳. Longitudes run from 0掳 at the Prime Meridian to 180掳 east and -180掳 west. Therefore, the minimum and maximum values for longitude are -180掳 and 180掳 respectively.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Latitude
Latitude is like an invisible belt around our planet. It measures how far a location is from the Equator, which is the imaginary line circling the Earth horizontally. The Equator is at 0掳 latitude. Locations north of the Equator are measured in degrees north (N) and those south are degrees south (S). Think of latitude as the rungs on a ladder, helping us figure out how far up or down we are.
  • At the North Pole, latitude is 90掳N.
  • At the South Pole, latitude is 90掳S.
This means the range of latitude is from -90掳 to 90掳, with negative values representing the Southern Hemisphere and positive values representing the Northern Hemisphere. By knowing the latitude, we learn how close or far a place is to the heat of the Equator.
Longitude
Longitude lines run vertically around the Earth, unlike latitude which runs horizontally. It is a measure of how far east or west a location is from the Prime Meridian, located at 0掳 longitude. The Earth is split into two halves, and longitude coordinates help us identify positions in these halves.
  • The maximum eastward measurement is 180掳 E.
  • The maximum westward measurement is 180掳 W.
The range of longitude is from -180掳 to 180掳. This makes longitude very important for pinpointing precise locations, much like a vertical axis on a graph helps determine position on a plane. Longitude gives us a way to divide the planet into time zones and navigational maps for global travel.
Prime Meridian
The Prime Meridian is the starting point for measuring longitude. It runs through Greenwich, England, and is designated as 0掳 longitude. The Earth's surface is divided by this imaginary line into the Western and Eastern Hemispheres.
It is one of the two most important meridians used in geographic coordinate systems. The other is the International Date Line mostly at 180掳锔� longitude.
  • Anything east of the Prime Meridian is measured in degrees east.
  • West of this line, coordinates are degrees west.
The Prime Meridian is essential for synchronization. It helps define time zones and standardizes travel and communication across different regions. Knowing its position, we can easily decipher time differences and plan accordingly for international interactions.

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Most popular questions from this chapter

Give the longitude of the central meridian for each of the time zones in the conterminous United States.

Are meridians great circles? Explain.
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