According to the law of longitude and latitude numerical changes on the globe, how to judge the east

Open the page below, it's all mine. If I can help you, I teach junior high school geography.

The first page is very detailed, and there are several other ** on the second page, all of which are useful to you.

I'll give you a little bit of a reply below. If I can help you, I teach junior high school geography.

1. Warp and weft.

Weft warp.

1.The shape is round and semicircled.

2.The size of the equator is up to 40,000 kilometers and is equal in length, 20,000 kilometers.

The poles of the net are gradually shortened to 0 km.

3.The boundaries of the scalar equator (0° latitude ° longitude.

East longitude is north latitude, south latitude 0° east and 180° west.

0° West and 180° East is the west longitude.

4.The scale number ranges from 0°, 90°, 0°, 180°5The symbol of the scale number is north latitude n, south latitude s east longitude e, west longitude w

Enter.

1. Warp and weft.

Weft warp.

1.The shape is round and semicircled.

2.The size of the equator is up to 40,000 kilometers and is equal in length, 20,000 kilometers.

The poles of the net are gradually shortened to 0 km.

3.The boundaries of the scalar equator (0° latitude ° longitude.

East longitude is north latitude, south latitude 0° east and 180° west.

0° West and 180° East is the west longitude.

4.The scale number ranges from 0°, 90°, 0°, 180°5The symbol of the scale number is north latitude n, south latitude s east longitude e, west longitude w

It's easy. The horizontal is the latitude, and the vertical is the longitude.

First, find the equator (the line in the middle of the globe), up north latitude (0-90n) and down south latitude (0--90s).

Find the Grimm meridian (the one marked with 0 degrees) with west longitude on the left and east longitude on the right.

Your teacher didn't teach you?

Change in longitude: With the direction of the Earth's rotation, the degrees of east longitude gradually increase, and the degrees of west longitude gradually decrease. That is, if you go from west to east, if the value gradually increases, then it is east longitude:

If the value gradually decreases, then it is the west longitude, the equatorial latitude is 0°, the south and north are 90 degrees, the south latitude (s) south of the equator, and the north latitude north of the equator (n). From the equator to the north and south, the latitude value gradually increases, the north pole is 90°n, and the south pole is 90°s.

It's simple: the degree of longitude in east longitude grows further east; The west longitude is greater the further west it goes; The further north latitude goes, the larger it becomes; The further south latitude you go, the larger it becomes.

The law of longitude variation: the value of east longitude is getting larger and larger to the east; The number of degrees of west longitude is increasing to the west. Laws of latitudinal variation:

The number of degrees of north latitude is increasing to the north; The southern latitude values are getting bigger and bigger to the south. The meridian lines indicate north and south, and the latitude lines indicate east and west. The weft is the axis with the earth.

A perpendicular line that circles the earth in an east-west direction, with all latitudes parallel and perpendicular to the meridians.

Among them, the equator is the longest latitude with a latitude of 0 degrees, and the whole earth is divided into 90 parts north and south along the equator, each of which is 1 degree. Therefore, 90 degrees south latitude is the South Pole and 90 degrees north latitude is the North Pole. Beijing, the capital of China, is located at 39 degrees north latitude.

Problem 1: North and south latitudes, with the equator as the dividing line, north as the north latitude, and south as the south latitude, increasing from the equator to the two poles, respectively 90° north latitude and 90° south latitude

Question 2: 30° is a low-latitude region, 30 60° is a mid-latitude region, and 60 90° is a high-latitude region.

Question 3: Longitude: Starting from the prime meridian (i.e. 0° meridian) passing through London, west is west longitude and east is east longitude, respectively 180° west longitude and 180° east longitude180° also does not belong to the East-West Meridian.

Select the north and south poles, connect these two points on the spherical surface, and then divide the spherical surface into 24 equal parts (15 ° each) vertically, select the place with the largest circumference as the equator in the direction of the high and horizontal along, divide the bridge upwards and downwards into 3 equal parts, and mark the degrees.

On a map, latitude and longitude perpendicular to the Earth can be drawn at any point on the Earth's surface. In this way, an infinite number of latitude and longitude lines can be drawn.

The meridian that passes through the location of the Greenwich Observatory in the United Kingdom is known as the zero meridian, or prime meridian. The longitude from 0 degrees east is called east longitude; The one that goes west is called the west longitude. Since the Earth is a sphere, it is 180 degrees east longitude and 180 degrees west longitude.

180 degrees east longitude and 180 degrees west longitude are on the same meridian, so this is 180 degrees of longitude.

The distribution law of longitude: bounded by 0 degrees of longitude, to the east is the east longitude. From west to east, the degrees of east longitude increase. 0° meridian to the west is the west longitude. From east to west, the longitude increases in west.

Judgment of the longitude of the east and west:

1) Side longitude map: Extend your right hand so that your thumb is perpendicular to the other four fingers and the back of your hand is facing you. Place your thumb on the 0° meridian with your thumb pointing upwards.

Following the direction of the four fingers, the degree of east longitude increases. Extend your left hand so that your thumb is perpendicular to the other four fingers and the back of your hand is facing you. Place your thumb on the 0° meridian with your thumb pointing upwards.

Following the direction of the four fingers, the degree of west longitude increases. If there is no 0° longitude in the picture, put your thumb on the meridian with a smaller degree, and the one that conforms to the right-hand judgment law is the east longitude, and the one that conforms to the left-handed judgment law is the west longitude.

2) Polar longitude distribution map: In the map with the North Pole as the center, the 0° meridian is the boundary, and the counterclockwise direction is the east longitude, and the east longitude increases. The clockwise direction is the west longitude.

The west longitude increases. In the diagram of the center of the South Pole, the clockwise direction is the east longitude, and the east longitude increases. The counterclockwise direction is west longitude.

The west longitude increases.

The distribution of latitude: bounded by the equator, north latitude is north latitude, and the number of degrees of north latitude increases. To the south is the southern latitude, and the southern latitude increases.

Judgment of north and south latitudes:

1) Side latitude map: Extend your right hand so that your thumb is perpendicular to the other four fingers, with the back of your hand facing you. Place your thumb on the equator and point your thumb to the left, following the direction of the four fingers, increasing the degrees of north latitude.

Extend your left hand so that your thumb is perpendicular to the other four fingers and the back of your hand is facing you. Place your thumb on the equator and point your thumb to the left, following the direction of the four fingers, increasing the degrees of southern latitude. If there is no equator in the diagram, put your thumb on the latitude with a small number of degrees, and the one that conforms to the right-hand judgment rule is the northern latitude, and the left-handed judgment rule is the southern latitude.

2) Judgment of polar latitude map: increase from the periphery to the central latitude. If the North Pole is the center, the latitudes in the map are all north latitudes. If you are looking at the center of Antarctica, the latitudes in the map are all south latitudes.

Judging the north and south latitudes, with the equator as the center, the greater the degree to the north is the north latitude, and the greater the degree to the south is the south latitude. The greater the east-west longitude to the left, the west longitude, but sometimes the east longitude is on the left.