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Latitude and Longitude. Latitude & Longitude. What is the blue line on this globe called?. Equator! . Latitude & Longitude. What is the yellow line on this globe called?. Prime Meridian . Latitude & Longitude continued. Latitude ( x axis ) & Longitude ( y axis ). - PowerPoint PPT Presentation
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Latitude and Longitude
Latitude & Longitude
What is the blue line on this globe called?
Equator!
Latitude & Longitude
What is the yellow line on this globe called?
Prime Meridian
Latitude & Longitude continued
Latitude (x axis) & Longitude (y axis)
(x) Latitude: measured in degrees, North & South of Equator
- Coordinate system used to locate places on EarthALWAYS
stated first
- think “laddertude” (rungs of a ladder)
horizontal lines ** lines of latitude are also called parallels
Maximum latitudes: 900 N (north pole) & 900 S (south pole)
Reference line = Equator (00)
Always has # and direction (examples: 490 N; 320 S)
Latitude (x axis) continued
There are 2 ways to get latitude:1) with reference to center of Earth2) with reference to Polaris
FYI: 10 of latitude ~ 111 km
Polaris & latitude: altitude / angle to Polaris = your latitude
If on the same latitude:1) all see Polaris at same angle2) all have same length of day
NH = Northern HemisphereSH = Southern Hemisphere
Longitude (y axis)
(y) Longitude: measured in degrees, East & West of the Prime Meridian (Greenwich, England)
ALWAYS stated second
Reference line: Prime Meridian (00) / GMT** lines of longitude are also called meridians
** A chronometer is a very accurate clock used to find longitude by finding the time difference from 00 longitude.
ALWAYS stated second
Greenwich Mean TimeGMT is the time in Greenwich, England from which all longitude is calculated E or W of the Prime Meridian based on 15o per hour of difference from GMT.
Longitude (y axis) continued
If on the same longitude:1) same time2) all will see high noon at the same time
International Date Line (IDL): 1800
If you go West over the IDL, add a day
If you go East over the IDL, lose a day
Rotational rate = Distance = 3600 = 150 / hour
Time 24 hrs
1 rotation per 24 hours
Memorize this
Longitude (y axis) continued
Earth is broken into 24 equal time zones, all 150 apart with 1 hour difference
Earlier Later
Rotational rate = Distance = 3600 = 150 / hour
Time 24 hrs Memorize
this
Stop!
Latitude / Longitude Intro
BOTH sides: start with latitude
and then…
Latitude / Longitude
Worksheet 03-2L
Dividing degreesHow many minutes in an hour?
How many seconds in a minute?
Guess what a degree is divided into (in latitude / longitude)?
Guess what a minute is divided into (in latitude / longitude)?
60 minutes!
60 seconds!
NYS Latitude / LongitudePage 3 ESRTs – RULER TIME
See next page in your notes for reference
See next page in your notes for
reference
See next page in your notes for
reference
Latitude / Longitude ctd
Page 11 of your notes packet: Add the minutes and seconds you see below
Latitude & Longitude –Southwestern United States
Latitude / Longitude ctd
Use page 3 of the ESRTs to complete the following table on PAGE 11 in your notes packet
Location Latitude Longitude
430 5’ N 760 10’ W
420 45’ N 730 40’ W
440 10’ N 730 55’ W
420 5’ N 750 55’ W
420 5’ N 790 15’ W
Riverhead
Slide Mountain
Oswego
Watertown
Buffalo
Syracuse
Albany
Mt. Marcy
Binghamton
Jamestown
400 50’ N
420 N
430 25’ N
430 55’ N
420 50’ N
720 35’ W
740 20’ W
760 25’ W
750 55’ W
780 50’ W
Homework: Lat / Long Practice (18 – 30)
Homework: Lat / Long Practice (18 – 30)
Latitude / Longitude Lab
Latitude / Longitude Lab
Latitude / Longitude Lab
Phone a friend at 6 am?
Remember: Rotational rate = 150 / hour
Longitude / Time Zone Problems
Longitude / Time Zone Problems
Longitude / Time Zone Problems
Longitude / Time Zone Problems
Longitude / Time Zone Problems
Latitude / Longitude Lab – Reality Check
Greenwich Mean Time (GMT)Greenwich Mean Time: the time in Greenwich, England from which all Longitude is calculated east & west of the Prime Meridian using 15o / hour of difference from GMT.
Latitude / Longitude Lab – Reality Check
2o driving in North Dakota vs. Texas2o = 2o but meridians (lines of longitude) are farther apart the closer to the Equator you are. Since Texas is closer to the Equator than South Dakota is so you would physically travel farther in Texas driving 2o east. *** LOOK AT THE GLOBES **
Latitude / Longitude Lab – Reality Check
DESCRIBE how to use latitude and longitude
• You would measure latitude north or south of the Equator in degrees (latitude is ALWAYS listed first)
• then you would measure longitude east or west of the Prime Meridian in degrees
• Latitude and longitude give the coordinates to pinpoint any location on Earth.
Maps including Lat. / Long.