How to judge the direction according to the latitude and longitude, and how to use the latitude and

The longitude that has passed through the Greenwich Observatory in the United Kingdom is zero, 0-180 east longitude to the east, and 0-180 west longitude to the west; The equator is the starting point, the northern hemisphere is 0-90 north latitude, and the southern hemisphere is 0-90 south latitude

The east longitude increases to the east, and the west longitude increases to the west.

The southern latitude increases to the south, and the northern latitude increases to the north.

Summary. 1. Interpret the east-west direction according to the longitude of the two places.

1 If the two places are the same east longitude, the greater longitude is in the east and the lower longitude is in the west.

2 If the two places of comparison are the same west longitude, the one with the lowest longitude is in the east and the one with the greater longitude is in the west.

3 When two places are compared to east and west, the sum of the longitudes of the two places is to be used to identify the east and west directions

1) If the longitude of the two places is less than 180, then the location of the east longitude is in the east. The location of west longitude is on the west side;

2) If the longitude of the two places is greater than 180, then the location of the west longitude is in the east and the location of the east longitude is in the west;

3) If the sum of the longitudes of the two places is equal to 180, then the two places are located on two opposite meridians, and it is impossible to say which point is in the east and which point is in the west.

2. Judge the north-south direction according to the latitude of the two places.

1 Both places are north latitudes, with the greater value in the north and the smaller value in the south.

2 Both are south latitudes, and the values are due north. The highest values are in the south.

3 One of the two latitudes is the north latitude, and the other is the southern latitude, the northern latitude is in the north, and the southern latitude is in the south.

How to use latitude and longitude lines to determine the direction.

1. Interpret the east-west direction according to the longitude of the two places 1 The two places where the lead hand returns are the same east longitude, so the longitude value is larger in the east and the longitude value is smaller in the west. 2 If the two places of comparison are the same west longitude, the one with the lowest longitude is in the east and the one with the greater longitude is in the west. 3 When two places of comparison are east and west, the sum of the longitudes of the two places is to be used to identify the east and west directions

1) If the longitude of the two places is less than 180, then the location of the east longitude is in the east. The location of west longitude is on the west side; 2) If the longitude of the two places is greater than 180, then the location of the west longitude is in the east and the location of the east longitude is in the west; 3) If the sum of the longitudes of the two places is equal to 180, then the two places are located on two opposite meridians, and it is impossible to say which point is in the east and which point is in the west. 2. Judge the north-south direction according to the latitude of the two places 1 Both places are in the north latitude, and the large value is in the north, and the small value is in the south.

2 Both are south latitudes, and the values are due north. The highest values are in the south. 3 One of the two latitudes is the north latitude, and the other is the southern latitude, the northern latitude is in the north, and the southern latitude is in the south.

3. Identifying the direction on the graticule map 1 Checkered or arc-shaped graticule diagram (1) Distinguishing the north and south latitudes: the north latitude is the north latitude where the latitude value increases to the north; The southern latitude increases to the south. (2) Distinguish between the East and the West; The longitude value increases to the east, and the east longitude increases; Increasing to the west is the west longitude.

2 Orange Finger Graticule Diagram in the Center of the North and South Poles (1) Distinguish the North and South Poles: The direction of the Earth's rotation is counterclockwise over the North Pole and clockwise over the South Pole. (2) Distinguish things:

Since the Earth's rotation direction is from west to east, the east-west direction can be distinguished based on the direction of rotation.

It's actually very simple and easy to understand:

1. First of all, the south latitude increases to the south, the north latitude increases to the north, the east longitude increases to the east, and the west longitude increases to the west, which is the basic knowledge.

2. For the graticule diagram, follow the principle of going up to the north and going down to the south, left to the west and the right to the east.

3. For judging the north and south latitudes, we find two adjacent latitudes and judge the direction of their increase, increasing to the north to the north latitude and south to the south latitude.

4. In the same way, the same is true for judging the east-west meridian, which direction to increase is which longitude.

5. For the hemispherical graticule, we pay attention to the judgment according to this principle, but we need to know which direction is east, from the sky over the South Pole, the clockwise direction is east, and from the northern hemisphere, the counterclockwise direction is east.

In the case of the Northern Hemisphere, the east-west longitude can be determined according to the direction of the Earth's rotation counterclockwise, near the prime meridian because it runs from west to east. In the case of the Southern Hemisphere, it is clockwise in the direction of the Earth's rotation. Similarly, the east-west meridian can be determined near the prime meridian.

Oral decision to judge longitude and latitude:

1. Judge the latitude to see the horizontal line (the degree on it), north and north latitudes, and south and south latitudes; North of the equator is the north latitude and south of the equator is the south latitude

2. Judge the longitude to see the vertical line (the degree on it), the east longitude, the west longitude; The east of the prime meridian is the east longitude, and the west of the prime meridian is the west longitude; East of the 180-degree meridian is the west longitude, and west of the 180-degree meridian is the east longitude.

3. Judging the latitude of the northern and southern hemispheres, the northern latitude belongs to the northern hemisphere, and the southern latitude belongs to the southern hemisphere.

4. Judge the longitude of the eastern and western hemispheres, east of 20 degrees west longitude is the eastern hemisphere, and west of 20 degrees west longitude is the western hemisphere; East of 160 degrees east longitude is the western hemisphere, and west of 160 degrees east longitude is the eastern hemisphere.

5. Judge the low, middle and high latitudes to see the latitude, 0-30 degrees for the low latitude, 30-60 degrees for the middle latitude, and 60-90 degrees for the high latitude.

6. Judge the latitude, the tropic of cancer and the polar circle.

Introduction to Longitude and Latitude:

Longitude, a geographical term, generally refers to the abscissa of the spherical coordinate system, specifically the degree that a place on the earth is located in the north-south direction of a line called the prime meridian. According to international regulations, the longitude at the original site of the Greenwich Observatory in London, the capital of the United Kingdom, is set at 0° longitude, and then extends to the left and right.

Latitude can be divided into astronomical latitude, geodetic latitude, and geocentric latitude. Geocentric latitude refers to the line between a point and the earth's sphere and the angle of the earth's equatorial plane, geodetic latitude refers to the angle between the normal of the ground and the equatorial plane, and astronomical latitude refers to the angle between the plumb line direction of the place and the equatorial plane. The latitude of the point north of the equator is called north latitude and is denoted as n; The latitude of a point located south of the equator is called south latitude and is denoted as s.

1. The dividing line between the northern and southern hemispheres is divided by the equator, with the north of the equator being the northern hemisphere and the south of the equator being the southern hemisphere.

The dividing line between the eastern and western hemispheres is divided by a meridian coil of 20°W, 160°E, 20°W east to 160°E for the Eastern Hemisphere, and 20°W west to 160°E for the Western Hemisphere.

2. The dividing line between the northern and southern hemispheres is the equator, that is, the 0 degree parallel, all the northern latitudes are in the northern hemisphere, all the southern latitudes are in the southern hemisphere, and the equator is on the dividing line, which is neither the northern hemisphere nor the southern hemisphere.

The dividing line between the eastern and western hemispheres is 20 degrees west longitude and 160 degrees east longitude, as long as the longitude is less than 20 degrees, both east and west longitude are located in the eastern hemisphere, as long as the longitude is greater than 160 degrees, both east longitude and west longitude are located in the western hemisphere, between 20 degrees and 160 degrees, east longitude is in the eastern hemisphere, and west longitude is in the western hemisphere.

20 degrees west longitude and 160 degrees east longitude are on the dividing line between the eastern and western hemispheres, and are neither the eastern nor the western hemispheres.

3. The equator divides the northern and southern hemispheres, the equator is the 0 degree meridian, the south of the equator is the southern latitude, and the north is the northern latitude. The boundary between the eastern and western hemispheres is 20°W, 160°W to 160°E is the Western Hemisphere, and 20°W is to 160°E to the East.

1.Find the map open platform on the web page, after entering the map open platform, pull down the mouse to find the development document - coordinate picker, 2Click on the coordinate picker to enter the interface of the pick-up coordinate system, search by keyword, the coordinate reverse check needs to be longitudinal first, and if you need to check the coordinates, you need to check the coordinate counter-check.