latitude, longitude, and maps. cartography is the science of making maps. use of imaginary grid of...
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![Page 1: Latitude, Longitude, and Maps. Cartography is the science of making maps. Use of imaginary grid of parallel and vertical lines to give exact locations](https://reader036.vdocument.in/reader036/viewer/2022062422/56649ee15503460f94bf1363/html5/thumbnails/1.jpg)
Latitude, Longitude, and Maps
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Cartography is the science of making maps. Use of imaginary grid of parallel and
vertical lines to give exact locations on Earth
Equator-circles the Earth halfway between the north and south poles
Separates Earth into 2 equal halves: northern and southern hemispheres
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Lines that run parallel to the equator Is the distance in degrees north or south
of the equator Equator serves as the reference point
(0°) North and South Pole each lie at 90° so
latitude is measured from 0° to 90° Expressed as degrees north or degrees
south of the equator
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Each degree of latitude = ~111 kilometers (km) on Earth’s surface
Broken down into smaller units (60 units = 60 minutes)
Minutes = ’ symbol Each minute of latitude = 1.85 km
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Lines of longitude only
Equator added Other lines of
latitude added
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E
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Lines of longitude (called meridians) are used to locate positions east and west
Is the distance in degrees east or west of the prime meridian (reference point for longitude)
Prime meridian = 0°(goes through Greenwich, England)
Points are numbered 0° to 180° (east or west) Lines of longitude are not parallel =
semicircles extend vertically from pole to pole
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Lines of longitude converge at the poles, making distances covered by degrees of longitude vary with location
Coordinates: Need both latitude and longitude to give exact location **Latitude comes first in the coordinates
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There are 24 times zones that Earth is divided into 24 represents the number of hours to
rotate once on its axis Each time zone represents a different hour
and is 15° wide The U.S. has 6 different time zones
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Midnight marks the end and beginning of each day in all times zones
Time is lost or gained as you travel through a zone which could cause a loss or gain of an entire day
International Date Line (180°) serves as the transition line for calendar days
east = move calendar back by 1 day west = advance calendar by 1 day
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The Earth is divided into 24 time zones, corresponding to 24 hours in a day.
As the earth rotates, the sun shines in different areas, moving from east to west during the course of a day.
Places that have the same longitude will be in the same time zone.