The definition of the weft, the shape features, the length, what is the direction indicated

Parallel. It is also called "weft coil".

with the Earth's axis. A circle that is perpendicular and circles around the Earth. The equator is the largest weft coil.

Corresponding to the warp.

The center of the coil is located on the earth's axis; The parallels indicate the east-west direction; On Earth, the parallels are perpendicular to the meridians; The equatorial latitude coil is the longest. The weft coils at the poles are condensed into one point.

The length of the parallels is different, each parallels are a circle, and the parallels are divided into southern and northern latitudes.

Globe. The warp and weft on are imaginary arcs, warps and parallels.

There are countless bars, and in order to distinguish each warp and weft, people mark them with degrees.

On the north and south sides of the equator, many circles parallel to the equator are drawn, which are called "latitude circles"; The segments of the lines that make up these circles are called the wefts.

From the North Pole to the South Pole, many large circles perpendicular to the Earth's equator in the north-south direction can be drawn, which are called "longitude circles"; The segments of these circles are called meridians.

The weft is the one that extends east-west and points east-west. Longitude.

Longitude lines are projected on the diagram as curved and perpendicular lines, but are actually half of a great circle. Latitude.

Lines of latitude are projected on the diagram as parallel lines that appear to be horizontal.

But it's actually circles of different radii. All locations with the same specific latitude are on the same parallel.

The equator has a latitude of 0° and divides the planet equally into the southern hemisphere.

and the Northern Hemisphere...

Specifies the direction for the length of the line.

Summary. The shape of the warp and weft is a straight line, the length varies according to the actual situation, the coil indicating the direction is located between the warp and the weft, and the starting line indicating the longitude and latitude is marked by an arrow, and the degree range is 0-180°.

The shape of the warp and weft is a straight line, and the length varies according to the actual situation, and the coil with the direction of the answer is located between the warp and the weft, and the starting line of the longitude and latitude is marked by an arrow, and the degree range is 0-180°.

1. Warp and weft 1Shape: The meridian is transverse and is a series of equidistant arcs, centered on the equator; The parallels are longitudinal and are a series of equidistant arcs, centered on the prime meridian.

2.Length: The full length of the meridian surrounds the earth 360°; The latitude is 90° long, and the collapse lifts two poles, the North Pole and the South Pole.

3.Indication direction: The meridian curves from the north pole to the south pole, indicating the direction from east to west; The parallels are curved from west to east, indicating the direction from south to north.

4.Coil relationship: Starting from the equator, separated by 90° from each other, each is divided into 9 large circles, and each large circle is subdivided into 60 small circles.

2. Longitude and latitude 1Start line: The starting line of longitude is taken as the prime meridian (0°), and marked in the negative direction of east and west; The starting line of latitude is taken from the equator (0°), and marked in the negative direction of south and north.

2.Symbols: Longitude is represented by east-west longitude e or w; Latitude is expressed by the south hall and north latitude n or s.

3.Degree range: longitude from 0°-180°, latitude from 0°-90°.

4.Dividing line between the eastern and western hemispheres: The prime meridian (0°) is the dividing line between the eastern and western hemispheres, and its longitude coordinates are plus or minus 180°.

5.Dividing line between the northern and southern hemispheres: The dividing line between the northern and southern hemispheres is the equator (0°) of Tuanbi, and its latitude coordinates are plus or minus 90°.

(1) All parallels are circles.

2) The length of the parallels of the same latitude is the same, and the length of the parallels of different latitudes is not the same The equator is the longest parallel, narrowing to points towards the poles.

3) All the parallels are parallel to each other.

4) The parallels except the poles indicate the east-west direction.

5) Any parallel line can form a circle independently, but only the equator can divide the Earth.

6) Any two adjacent parallels are equally spaced apart.

Latitude and latitude: Determination of latitude characteristics and latitude.

The latitudes and latitudes of the earth are ultra-clear.

1.Rotundity.

2.North-South direction.

3.From the equator to the north and south, it gradually decreases to one point.

1. Warp and weft.

1.All the warp threads are half a circle, and all the warp coils are equal.

All parallels are a circle, parallels of different dimensions are not equal in size, and parallels of the same latitude are a circle of equal size.

2.The size of the latitude The equator is up to 40,000 km, all of which are of equal length, 20,000 km, and gradually shorter to 0 km 3The boundaries of the scalar number are equatorial (0° latitude ° north latitude and south latitude 0° south latitude east 180° west is east longitude 0° west 180° east is 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 w6The boundary that divides the hemisphere is the equator (0° parallel) and the meridian coil formed by 20°W and 160°E.

North of the equator in the Northern Hemisphere, 20°W east to 160°E is south of the Eastern Hemisphere and 20°W west to 160°E is 7 in the Western HemisphereDirections: Indicates East and West, Indicates North and South.

Generally, left, west, right, east, generally up, north, down, south.

Illegible, the shape of the weft; Circle,

Although it is not very clear, the latitude is the dividing line between the east and west sides of the equator.

Longitude: The line that connects the north and south poles and intersects perpendicular to the parallel, also known as the meridian.

The meridian indicates the north-south direction;

All meridians are semicircular and equal in length, and the 0 degree meridian refers to the meridian that passes through the Royal Observatory Greenwich in London, England as a standard reference meridian for the measurement of time and longitude, which is called the prime meridian.

The degree variation range of the meridian is 0°-180°E 0°-180°w parallel: on the globe, the circle that circles around the globe in the east-west direction is called the latitude.

All the parallels are parallel to each other and perpendicular to the warp.

The parallels indicate the east-west direction; The size of the weft coil varies, with the equator being the largest latitude coil, and gradually shrinking from the equator to the poles, and then to the north and south poles to the points.

The 0 degree of latitude is called the equator.

The range of dimension variation is 0° (commonly known as the equator) - 90°N (North Pole) and 0° - 90°S (South Pole).

Shape Characteristics Indication Direction Length Distribution Law Zero Degree Line Degree Variation Range Representation Symbol.

Meridian semicircle North-south direction Equal length Prime meridian 0---180 e and w

Parallels Circle East-West The equator is shortened towards the poles Equator 0--90 s and n

The latitude line is a whole circle pointing to the east and west, the length of the latitude at different latitudes is the same, the longest is the equator, that is, the 0 degree parallel, the closer to the equator, the smaller the degree, s south latitude n north latitude.

The meridian is a semicircle connecting the north and south poles, divided into east longitude and west longitude, the length of the meridian of different longitudes is the same, the east increases and the west decreases, E east longitude w west longitude.

The parallels are lines perpendicular to the Earth's axis and circumnavigate the Earth in an east-west direction, with all latitudes parallel and perpendicular to the meridians. A meridian is an arc that connects the north and south poles and is perpendicular to the parallel, and any two meridians on the earth's surface are of equal length and intersect at the north and south poles.

The whole earth is divided into 180 parts from the prime meridian to the east and west, and each meridian has its corresponding value, that is, longitude, and the difference between each meridian is 1 degree. Beijing, the capital of China, is located on the 116th longitude of east longitude.

Since the meridians connect the north and south poles, all the meridians are equal in length and indicate the north-south direction. The parallels all indicate the east-west direction. The warp and weft threads are perpendicular to each other and intertwined with each other, forming a graticule.

When we read a map, we can use the graticule to determine the direction, and we can also determine the latitude and longitude of any point on the earth.

1. What is the relationship between the position of the warp and the weft?

A: Perpendicular to each other.

2. What is the length of the warp and weft?

Answer: The length of the meridian remains the same, which is about the circumference of the Earth's equator;

The length of the parallels varies, ranging from 0 to the length of the Earth's equator.

3. What is the direction of warp and weft?

Answer: The meridian indicates the east-west direction;

The parallels indicate the north-south direction.

4. What is the maximum degree value of warp and weft?

Answer: The maximum degree of meridian is 180°;

The maximum degree of latitude is 90°.

5. Determination of 0° of warp and weft?

The 0° meridian is more complicated, and the meridian that once crossed the Greenwich Observatory was 0°.

Later, the observatory was relocated and several longitudinally stable observatories were used to maintain the longitude origin, and the original longitude of these observatories was used to reverse the longitude origin of their respective longitudes. The average of these longitude origins and the difference between point e are then determined and maintained as the global longitude origins.

The 0° parallels are the equator.

6. What is the degree change law of warp and weft?

Longitude: from the 0° meridian to the east is called the east longitude, from 0° to 180°; From the 0° meridian to the west is called the west longitude, from 0° to 180°;

latitude, from the equator to the south is called southern latitude, from 0° to 90°; From the equator to the north is called the northern latitude, from 0° to 90°.

7. What is the distribution law of warp and weft?

The meridian is a circle of equal radius that crosses the north and south poles;

The parallels are circles parallel to the equator.

8. What is the shape of the warp and weft from the poles?

The meridians are radiations originating from the poles;

The parallels are concentric circles centered on the poles.

9. What is the boundary between the meridian and the latitude dividing the hemisphere?

20°W and 160°E, dividing the Earth into the eastern and western hemispheres;

The 0° parallel, which divides the earth into the northern and southern hemispheres.

Woo, tired of typing, so tired!

Exhausted me to death first, and then exhausted me to life.

, the position of the longitude and the parallel?

A: Perpendicular to each other.

On the globe, you can see criss-crossing lines, which are the latitude and longitude lines. The line connecting the north and south poles is called the meridian line. The thread perpendicular to the warp is called the weft. The weft is a circle of varying lengths. The longest parallel is the equator.

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 0°, 90°, 0°, 180°

5.The symbol of the scale number is north latitude n, south latitude s east longitude e, west longitude w

6.The boundary that divides the hemisphere is the equator (0° parallel) and the meridian coil formed by 20°W and 160°E.

North of the equator in the Northern Hemisphere, 20°W east to 160°E is the Eastern Hemisphere.

South of the Southern Hemisphere 20°W west to 160°E is the Western Hemisphere.

7.Directions: Indicates East and West, Indicates North and South.

Generally, left, west, right, east, generally up, north, down, south.

Parallel: A circle perpendicular to the Earth's axis on the Earth's surface and orbiting the Earth.

Shape: circle;

Indication direction: east-west;

Length variation: unequal in length (the equator is the longest, and the length towards the poles is gradually shortened);

Scale range: 0° 90°;

Determination of the zero parallel: equator;

The change law of degrees: from the equator to the poles, the north is called north latitude (n), and the south latitude (s) is increased;

Dividing the Earth's boundaries: The equator (0° parallel) divides the Earth into two hemispheres, the northern and southern hemispheres; "The northern latitude belongs to the northern hemisphere, and the southern latitude belongs to the southern hemisphere".

Warp: A semicircle that connects the north and south poles and intersects perpendicular to the parallels.

Shape: semi-circular;

Indication direction: north-south;

Length variation: the length is equal;

Scale range: 0° 180°;

Determination of the zero degree line: prime meridian;

The change law of degrees: from the prime meridian to the east and west, the east is called east longitude (e), and the west is called west longitude (w);

Dividing the Earth's boundaries: a meridian coil of 20°W and 160°E divides the Earth into two hemispheres, the eastern and western hemispheres; "Longitude less than 20° belongs to the Eastern Hemisphere; Anything greater than 160° belongs to the Western Hemisphere; Between 20° and 160°, the east longitude is the eastern hemisphere, and the west longitude is the western hemisphere

Parallel: indicates east-west direction, length: decreasing from equator to two levels; Degree range: 0°-90°, 0° latitude is the equator, increasing from the equator to the north and south, increasing from the north latitude to the north, and increasing from the south latitude to the south; The equator is the dividing line between the northern and southern hemispheres.

The meridian indicates the north-south direction; Length: Equilength; Power Range:

0°-180°, the 0° meridian is the prime meridian, increasing from the 0° meridian to the east and west, the meridian west of 0° is the west longitude (w), the east meridian is the east longitude (e), and the dividing line of the eastern and western hemispheres is 20°w and 160°E.