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The question is incomplete, what's wrong.
At least what coordinate system are the coordinates you are referring to, there are geocentric coordinates, geographic coordinates, and there are several kinds of geographic coordinates.
Anyway, at the very least, the origin of the coordinates, the geometric level, the equator, the meridian, the latitude, the poles should be known.
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As far as world geography is concerned, you need to understand the special longitude positions of the continents.
For example, you need to know about the continents through which the longitude passes.
20 W, 50 E, 65 E, 70 E, 90 E. East longitude 100East longitude 120East longitude 150120 W longitude, 75 W longitude, 40 W longitude,。。
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It doesn't seem to be there, it's generally written as: Beijing is in that time zone or something, and the specific coordinates don't need to be remembered.
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The most、Occurrence of major events、Book on。 Generally memorized.
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Get rid of, high school geography or junior high school geography?
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First look at the longitude geographical location, then look at the latitude geographical location, and finally put them together, which is the geographical coordinates. For example, the geographical coordinates of Beijing are (40°N, 112°E).
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Problem 1: The method of representing the blind cover of geographical coordinates is generally latitude first, and longitude later. i.e. (latitude, longitude).
Remember Question 2: What are the English words and meanings of the nsew of the geographical coordinates respectively n represents the north north latitude.
s stands for south latitude.
e stands for East East Longitude.
w stands for Western West Longitude.
Question 3: What are the ways to represent geographical coordinates There is only one way! Geographic coordinates are spherical coordinates that express the location of ground points in longitude and latitude.
Question 4: The way to represent geographic coordinates is longitude or latitude is before Geographic coordinates are spherical coordinates that use longitude and latitude to represent the location of ground points. The geographic coordinate system takes the earth's axis as the polar axis, and all planes passing through the earth's north and south poles are called meridians.
The intersection of the meridian and the ellipsoid of the earth is called the meridian or meridian. All planes that pass through the Earth's axis intersect the Earth's surface to form an (elliptical) circle, which is the meridian coil. A meridian is a semi-elliptical arc.
The intersection of all planes perpendicular to the Earth's axis and the Earth's ellipsoidal surface is called the parallel. The parallels are circles with different radii, where the parallels with the largest radius are called the equator. On a globe, the meridian that passes through the original site of the Greenwich Observatory in London is called the 0 degree meridian, also known as the prime meridian.
On the globe, the line parallel to the equator is called the latitude line, the latitude line indicates the east-west direction of the geographical coordinates, all the parallels are not equal in length, and the degree marked by the latitude line is the latitude; The equatorial latitude is zero, north of the equator is the north latitude, and south is the south latitude. On the globe, the latitude and longitude lines are intertwined to form a graticule, and the location of the points on the ground is represented by longitude and latitude, which is called geographic coordinates. For example:
Beijing, the capital of China, is located near the intersection of 40 degrees north latitude and 116 degrees east longitude, and Kunming is located near the intersection of 25 degrees north latitude and 103 degrees east longitude. Latitude is the abscissa in geographic coordinates, and longitude is the ordinate.
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Earth latitude and longitude system: The earth latitude and longitude system is a method of using latitude and longitude to represent the position of any point on the earth. Longitude is the angle between a point on the earth's surface and the prime meridian, with east longitude being positive and west longitude being negative.
Latitude is the angle between a point on the earth's surface and the earth's equatorial plane, with north latitude being positive and south latitude being negative. Longitude and latitude are expressed in degrees (°), minutes ( ), and seconds ( ).
Common coordinate systems: Common coordinate systems include Cartesian coordinate systems, polar coordinate systems, and spherical coordinate systems. In a Cartesian coordinate system, any point on the earth's surface can be represented by x,y coordinates.
In a polar coordinate system, any point on the Earth's surface can be represented by polar radial splits and polar angles. In a spherical coordinate system, any point on the earth's surface can be represented by spherical coordinates, including longitude, latitude, and radius.
Map projection: The earth is a sphere, and the spherical surface needs to be projected onto a flat surface when drawing a map. Map projection refers to the method of mapping the latitude and longitude coordinates of the earth's surface onto a plane.
Commonly used map projections include conformal conic projection, equal area conic projection, equidistant conic projection, conformal conical projection, equal area cylindrical projection, equidistant cylindrical projection, Mercator projection, etc.
GPS positioning: GPS is the abbreviation of Global Positioning System, which is a method of measuring any position on the earth using satellite signals. GPS positioning can accurately measure the latitude and longitude coordinates of a certain point on the earth's surface.
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Coordinates can represent the geographic location of a place.
A coordinate system is a mathematical tool made up of spatial coordinates and axes, which can be used to describe the position and orientation of an object in space. In a coordinate system, the position of a point is determined by one or more axes, which in turn precisely locates and controls the motion of the object. The application of coordinate systems can also be applied to other celestial bodies or objects in space, such as the positions of stars, galaxies, planets, etc. in astronomy.
Longitude refers to the east-west distance of a position from the prime meridian, also called east-west longitude. The longitude we commonly use is divided into two types: east longitude and west longitude, with the prime meridian as the center, with a positive number to the east and a negative number to the west. Latitude refers to the north-south distance of a location from the equator, also known as north-south latitude.
Based on the equator, it is positive to the north and negative to the south.
The coordinates of Beijing are roughly east longitude and north latitude. This coordinate can be used to locate the location of Beijing on a map, which is a very useful way. And with the rapid development of modern technology, the positioning error of the position has been established within a small range.
Introduction to the Beidou navigation system:
The Beidou Navigation System is a satellite navigation system independently developed by China, which consists of a set of satellites, a ground control station and a user terminal. It is one of the strategic infrastructures of China's national key development, which aims to provide high-precision and high-reliability positioning, navigation, timing and other services for global users. The Beidou navigation system has been built into one of the world's largest satellite navigation systems.
At present, the system has three generations of satellites, the first generation of satellites was launched in 2000 with a total of 33 satellites, the second generation of silver satellites was launched in 2011 with a total of 35 satellites, and the third generation of satellites was launched in 2020 with a total of 30 satellites planned. The Beidou navigation system not only provides China with an independent satellite navigation system, but also provides high-quality and high-reliability navigation services for users around the world.
In addition to providing satellite navigation and positioning services, the Beidou navigation system can also be used for satellite communications, satellite broadcasting, weather forecasting, aerospace and other aspects. In the civil field, the Beidou navigation system has been widely used in vehicle navigation, smart cities, port and water management, agricultural production, disaster early warning, etc.
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General steps to represent a geographic location using coordinates:
Select an appropriate reference point to establish a Cartesian coordinate system for the original excavation center, and determine the positive direction of the x-axis and y-axis;
Determine the appropriate scale bar according to the specific problem, and mark the length unit on the coordinate axis;
Draw these points in the coordinate plane and write the coordinates of each point and the name of each place.
Expansion: Geographical location is generally used to describe the relationship between time and space of geographical things. According to the relativity and absoluteness of geographical location, it is generally divided into absolute geographical location and relative geographical location.
Relative geographic location is determined by the things around it as a reference point. The geographical location is based on the entire earth as a reference system, and the latitude and longitude are used as the measurement standard. Every place on Earth has its own unique latitude and longitude values.
It is to use latitude and longitude to represent geographical location to determine the location information of something.
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The deviation from the intersection in the north-south direction is the x value, and the deviation from the east-west direction from the intersection is the y value.
Two ray crosses in the east-west and north-south directions intersect, and the X and Y values at the intersection are 0 (this point is geographically specified and invariant).
This is actually the use of coordinate notation in mathematics.
Planar coordinate systems are divided into three categories:
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