Globe-Latitudes and Longitudes
Shape of the earth-It’s not sphere.
It is slightly flattened at the North Pole and South Poles and bulge in the middle.
Earth moves from west to east
Equator-what is equator ?
Parallels of latitudes-All parallel circles from the equator upto the poles north poles and south poles are called parallel of latitudes.
Some important Parallels of Latitudes
Equator is at -0 degree latitude
North Pole is at -90 North degree latitudes
South Pole is at-90 degree south latitudes
Four major parallels of latitudes with latitudinal value
Tropic of cancer- 23.5° north of the equator(Northern hemisphere)
Tropic of Capricorn- 23.5°south of the equator (southern hemisphere)
Arctic Circle- 66.5° North of the equator (Northern Hemisphere)
Antarctic Circle- 66.5° south of the equator (southern Hemisphere)
Heat zones of the Earth
what is heat zones ?
There are three different zones in earth arises due to the temperature difference these are called Heat zones of the earth.
Torrid zone-The Hottest Heat Zone
Temperate Zone-moderate temperature .
Frigid zones- The Coldest Heat Zone
Longitude –It is imaginary line drawn from North Pole to South Pole.it’s reference point.
Meridians of Longitude-It’s a reference point running from North Pole to South pole.
Longitude and Time
Earth rotates from west to east, those places east of Greenwich will be ahead of Greenwich time and those to the west will be behind it.
Example-If it is 12 o’clock in Greenwich then the time of places east of Greenwich will be more than 12 o’clock and west of Greenwich will be less than 12 o’clock.
Earth rotates 360 degree in 24 hours
Earth rotates 15 degree in 1hours
Earth rotates 1 degree in 4 minutes.
Thus if any place located 15 degree east of Greenwich then it’s time will be one hour ahead of Greenwich.
All the places on a given meridians of longitude have the same local time.