Video lesson “Geographical latitude and geographic longitude. Geographic Coordinates" will help you get an idea of geographic latitude and geographic longitude. The teacher will tell you how to correctly determine geographic coordinates.
Geographic latitude- arc length in degrees from the equator to a given point.
To determine the latitude of an object, you need to find the parallel on which this object is located.
For example, the latitude of Moscow is 55 degrees and 45 minutes north latitude, it is written like this: Moscow 55°45" N; latitude of New York - 40°43" N; Sydney - 33°52" S
Geographic longitude is determined by meridians. Longitude can be western (from the 0 meridian to the west to the 180 meridian) and eastern (from the 0 meridian to the east to the 180 meridian). Longitude values are measured in degrees and minutes. Geographic longitude can have values from 0 to 180 degrees.
Geographic longitude- length of the equatorial arc in degrees from the prime meridian (0 degrees) to the meridian of a given point.
The prime meridian is considered to be the Greenwich meridian (0 degrees).
Rice. 2. Determination of longitudes ()
To determine longitude, you need to find the meridian on which a given object is located.
For example, the longitude of Moscow is 37 degrees and 37 minutes east longitude, it is written like this: 37°37" east; the longitude of Mexico City is 99°08" west.
Rice. 3. Geographical latitude and geographic longitude
For precise definition To locate an object on the surface of the Earth, you need to know its geographic latitude and geographic longitude.
Geographical coordinates- quantities that determine the position of a point on the earth’s surface using latitudes and longitudes.
For example, Moscow has the following geographic coordinates: 55°45"N and 37°37"E. The city of Beijing has the following coordinates: 39°56′ N. 116°24′ E First the latitude value is recorded.
Sometimes you need to find an object at already given coordinates; to do this, you must first guess in which hemispheres the object is located.
Homework
Paragraphs 12, 13.
1. What is geographic latitude and longitude?
Bibliography
Main
1. Basic course in geography: Textbook. for 6th grade. general education institutions / T.P. Gerasimova, N.P. Neklyukova. - 10th ed., stereotype. - M.: Bustard, 2010. - 176 p.
2. Geography. 6th grade: atlas. - 3rd ed., stereotype. - M.: Bustard, DIK, 2011. - 32 p.
3. Geography. 6th grade: atlas. - 4th ed., stereotype. - M.: Bustard, DIK, 2013. - 32 p.
4. Geography. 6th grade: cont. cards. - M.: DIK, Bustard, 2012. - 16 p.
Encyclopedias, dictionaries, reference books and statistical collections
1. Geography. Modern illustrated encyclopedia / A.P. Gorkin. - M.: Rosman-Press, 2006. - 624 p.
Literature for preparing for the State Exam and the Unified State Exam
1. Geography: initial course. Tests. Textbook manual for 6th grade students. - M.: Humanite. ed. VLADOS center, 2011. - 144 p.
2. Tests. Geography. 6-10 grades: Educational and methodological manual/ A.A. Letyagin. - M.: LLC "Agency "KRPA "Olympus": "Astrel", "AST", 2001. - 284 p.
Materials on the Internet
1. Federal Institute pedagogical measurements ().
2. Russian Geographical Society ().
Instructions
First you must determine geographic longitude. This value is the deviation of an object from the prime meridian, from 0° to 180°. If the desired point is east of Greenwich, the value is called east longitude, if west - longitude. One degree is equal to 1/360 part.
Pay attention to the fact that in one hour the Earth rotates by 15° of longitude, and in four minutes it moves by 1°. Your watch should show exact time. To find geographic longitude, you need to set the time to noon.
Find a straight stick 1-1.5 meters long. Stick it vertically into the ground. As soon as the shadow from the stick falls from south to north, and the sundial “shows” 12 o’clock, note the time. This is local noon. Convert the received data to Greenwich Time.
Subtract 12 from the result obtained. Convert this difference to degrees. This method does not give 100% results, and the longitude from your calculations may differ from the true geographic longitude of your location by 0°-4°.
Remember, if local noon occurs earlier than noon GMT, this is longitude; if later, it is . Now you must set the geographic latitude. This value shows the deviation of an object from the equator to the north (north latitude) or south (latitude) side, from 0° to 90°.
Please note that the length of one geographic degree is approximately 111.12 km. To determine the geographic latitude, you need to wait until nightfall. Prepare a protractor and point its lower part (base) at the polar star.
Place the protractor upside down, but so that the zero degree is opposite the polar star. Look at what degree the hole in the middle of the protractor is opposite. This will be the geographic latitude.
Sources:
- Determining latitude and longitude
- how to determine location coordinates
With the development of interregional labor relations, as well as for personal interests, there is a need to move from city to city, other populated areas, or to places where you have never been before. There are now many ways to determine coordinates desired destination.
Instructions
Start installing the downloaded file by clicking the “install” button and wait for the program to download.
Select a starting location and check the box.
Also define coordinates You can use Bing.com.
Enter the area you are interested in in the fields opposite the logo and click search.
Right-click on Directions from here and a window will appear on the left side. Indicate your destination area. Red flag is the starting area, green flag is the destination area. There on the left side, select how you would like to get there.
Find the elevation angle using the set screw and Vernier scale.
Globes and maps have their own coordinate system. Thanks to this, any object on our planet can be applied to them and found. Geographic coordinates are longitude and latitude; these angular values are measured in degrees. With their help, you can determine the position of an object on the surface of our planet relative to the prime meridian and equator.
Instructions
Having determined local noon, note the clock readings. Then make an adjustment to the resulting difference. The fact is that the angular speed of movement is not constant and depends on the time of year. So add (or subtract) an amendment to the result obtained.
Let's look at an example. Let's say today is May 2. The clocks are set according to Moscow. Moscow in summer summer time differs from the world one by 4 hours. At local noon, established by sundial, the clock showed 18:36. Thus, world time is currently 14:35. Subtract 12 hours from this time and get 02:36. The amendment for May 2 is 3 minutes (this time should be added). Converting the obtained result into an angular measure, we obtain 39 degrees west longitude. The described method allows us to determine it with an accuracy of up to three degrees. Considering that in an emergency you will not have a table of the equation of time at hand to make adjustments to the calculations, the result may differ from the true one.
To determine geographic latitude, you will need a protractor and a plumb line. Make a homemade protractor from two rectangular strips, fastening them in the form of a compass.
Attach a thread with a weight in the center of the protractor (it will act as a plumb line). Point the base of the protractor at the North Star.
Subtract 90 degrees from the angle between the base of the protractor and the plumb line. We got the angle between the polar star and the horizon. Since it has a deviation from the pole axis of only one degree, the angle between the direction to the star and the horizon will be the desired latitude of the area in which you are located.
Sources:
- Determining latitude and longitude
Knowing the latitude where your home is located can be very helpful. Despite the fact that today the exact location can be easily determined using compact navigators, navigating the terrain using the “old” methods is still relevant and very interesting.
You will need
- Minimum knowledge of the starry sky, as well as:
- - two slats,
- - bolt with nut,
- - protractor
Instructions
To determine geographic latitude places, you need to make a simple protractor.
Take two rectangular wooden planks one and a half to two meters long and hinge their ends together according to the principle of a compass. Stick one leg of the compass into the ground and set it vertically and plumb. The second should move quite tightly on the hinge. A bolt with can be used as a hinge.
These preliminary work must be done during the day, before dusk. Naturally, the weather must be cloudless enough to allow you to observe the starry sky.
At dusk, go out into the yard and look for the North Star in the sky.
To determine the location, find the Big Dipper. To do this, turn your face to the north and try to see the seven that form the outline of a large bucket. Usually this constellation is easy to find.
Now mentally draw a line between the two outer stars of the bucket towards the bell and measure five segments on it equal to the distance between these stars.
You will find yourself on a fairly bright star, which will be Polaris. Make sure you are not mistaken: the star found should be the end of the small dipper - the constellation Ursa Minor.
Point the movable leg of the compass strictly at the North Star. To do this, you will have to turn the device a little and again align the vertical rail in a plumb line. Now, as it were, “aim” at the star - as surveyors do - and fix the position of the device by tightening the nut on the hinge.
Now, using a protractor, measure the angle between the direction towards the star and the vertical post. This can be done in the light by moving the device indoors.
Subtract 90 from the result obtained - this will be the latitude of your place.
Video on the topic
To ensure that some object can always be found on a map or terrain, an international coordinate system was created, including latitude and longitude. Sometimes the ability to determine your coordinates can even save your life, for example, if you are lost in the forest and want to convey information about your location to rescuers. Latitude determines the angle formed by a plumb line from the equator and the desired point. If the place is located north of the equator (higher), then the latitude will be north, if south (lower) it will be south.
You will need
- - protractor and plumb line;
- - watch;
- - nomogram;
- - map;
- - a computer connected to the Internet.
Instructions
Latitude determines the angle formed by a plumb line from the desired point. If the place is located north of the equator (higher), then the latitude will be, if south (lower) - southern. To find out latitude V field conditions using available tools, take a protractor and a plumb line. If you don't have a protractor, make one from two rectangular strips, fastening them in the form of a compass so that you can change the angle between them. Attach a thread with a weight in the center, it will act as a plumb line. Point the base of the protractor at polar. Then subtract 90? from the angle between the plumb line and the protractor. Since the angular angle from the axis of the celestial pole at the polar star is only 1?, then the angle between the horizon and the polar star will be equal to space, so feel free to calculate this angle and, thus, latitude.
If you have a watch, note the length of the day between sunrise and sunset. Take the nomogram, put the resulting length of day on the left side, and mark the date on the right side. Connect the obtained values and determine the point of intersection with the part. This will be the latitude of your location.
To determine latitude according to, use horizontal lines - parallels. Look at the value on the right and left of each line. If the location you are looking for lies directly on the line, the latitude will be equal to this value. If you are looking for latitude place located between two lines, calculate approximately at what distance it is located from the nearest parallel. For example, the point is located approximately 1/3 of the parallel 30? and 2/3 of 45?. This means that approximately its latitude will be equal to 35?.
Video on the topic
You can find out both the latitude and longitude of your location using a satellite navigation system, so when setting out on a journey into the unknown wild places, don't forget to take this one with you necessary item.
Any point on the ground has its own geographical coordinates. With the advent of GPS navigators, determining the exact location has ceased to be a problem, but the ability to understand the map - in particular, determine and longitude, is still quite relevant.
You will need
- - Globe or world map.
Instructions
The equator divides the globe into two halves: the upper, or northern, and the lower, southern. Pay attention to the parallels - ring lines encircling the globe parallel to the equator. These are the lines that define latitude. At this point it is equal to zero, and as it moves towards the poles it increases to 90°.
Find it on the globe or map your point - let's say it's Moscow. Look at what parallel it is located, you should get 55°. This means that Moscow is located at 55° latitude. Northern because it lies north of the equator. If you, for example, were looking for the coordinates of Sydney, it would be at 33° south latitude - because it lies south of the equator.
Now search for map England and its capital - London. Please note that it is through this one that one of the meridians passes - the lines stretching between the poles. The Greenwich Observatory is located near London; it is from this place that longitude is usually measured. Therefore, on which the observatory itself lies is equal to 0°. Everything that is west of Greenwich up to 180° is considered western. That which is to the east and up to 180° is to eastern longitude.
Based on the above, you can determine longitude Moscow - it is equal to 37°. In practice, to accurately indicate the location of a populated area, they determine not only , but also minutes, and sometimes . Therefore, the exact geographical coordinates of Moscow are as follows: 55 degrees 45 minutes north latitude (55°45?) and 37 degrees 37 minutes east longitude (37°38?). The geographical coordinates of the above-mentioned Sydney, which lies in the Southern Hemisphere, are 33° 52" south latitude and 151° 12" east longitude.
Because cyclamen is a rare “guest” in the garden, many gardeners are sure that it is exclusively a flower. However, cyclamen feels great on personal plot, if you give it a place in the partial shade of fruit trees or evergreen shrubs, protecting it from drafts and direct sun rays. Cyclamen is good for arrangement alpine slide. The choice of this arrangement of the flower is explained by its location in wildlife, where it is found both in the forest and among the rocks.
Distribution area of cyclamens in the wild
Cyclamen is a heat-loving plant that prefers moderate humidity and shade. Therefore, most species grow in thickets of forests or bushes, as well as in rock crevices. On the territory of the former Soviet Union cyclamens are found in Ukraine, Crimea, the southwest of the Caucasus, southern Azerbaijan, Krasnodar region. Among the countries of Central Europe, France, Germany, Poland, and Bulgaria can boast of cyclamen habitat, where plants are mainly found in the south and southeast.
Species from these regions, or “natives” from northern Turkey, are quite suitable for cultivation in the garden conditions of the European part of Russia, especially since the eastern Mediterranean is a real cyclamen: Turkey, Iran, Syria, Cyprus, Greece, Israel. In the western Mediterranean, Italy and Spain, cyclamens also grow. On a hill near the Italian Lake Castel Kaldorf, you can observe their friendly flowering, which rarely happens in nature. After all, most wild species are on the verge of extinction. Northern Tunisia and Algeria are rich in cyclamen.
Varieties of wild cyclamens
It must be said that depending on their habitat, cyclamen have different endurance. For example, the ivy-leaved cyclamen or Neapolitan, common in central Europe, can easily overwinter in the snowy Russian winter with a temperature of -20°C. European cyclamen (purple) stands out from the general range of heat-loving species. It is characterized by a silvery leaf pattern and flowering not in the fall, like most cyclamen, but starting in June.
Sometimes they treat cyclamens growing in the territories of Abkhazia, Azerbaijan, and Adjara extremely unfairly, calling all species “Caucasian”. After all, here they distinguish such varieties as Circassian, Abkhazian, Colchian (Pontic), spring, graceful, Kosian. The latter is quite well known in Iran, Turkey, Syria, Israel and Bulgaria. Prefers to grow among coniferous vegetation. Its flowers are larger the further to the east. The largest flowers are considered to be cyclamen Kos on the shores of the Caspian Sea, in Azerbaijan.
In the south of France and the mountainous regions of Spain, a small species of cyclamen is common - Balearic, which belongs to the spring-flowering species. African cyclamen is considered the most heat-loving. distinctive features which are bright green large leaves that appear on the surface after the flowers. You can guess the habitat of many types of cyclamen by their name: African cyclamen, Cypriot cyclamen, Grecum, Persian. Persian, like African, does not tolerate even mild frosts.
Russian name Rowan comes from the word "ripple". Most likely, this is due to the fact that its clusters are bright and noticeable even from a distance. But this name refers only to trees with red and yellow fruits. The widespread black rowan has a completely different scientific name - chokeberry, although it also belongs to the Rosaceae family.
Rowan is a unique tree with a branched root system, which allows it to grow in a variety of latitudes, even in permafrost conditions, and withstand frosts down to -50 degrees Celsius. As a rule, the height of rowan is about 4–5 m, but in mild climates there are specimens reaching 15 m in height. In cold and harsh areas it does not grow higher than 50 cm.
Rowan belongs to fruit trees, but its fruits are not berries at all, as is commonly believed, but so-called false drupes. They have an oval-round shape and a core with seeds, so their structure is similar to an apple, only much smaller in size. Rowan begins to bear fruit when it reaches the age of 7 - 8 years, and is often long-lived - some trees live up to 200 years. Rowan, growing for more than 20 years, can produce a harvest of over 100 kg per year.
Places of distribution
Various varieties and hybrids of rowan are widespread throughout Europe, Asia, and North America. The most common species in our latitudes is the mountain ash (Sorbus aucuparia), which grows in abundance in gardens and forests almost throughout Russia and does not require any special care. Its most popular forms are considered to be Nevezhin rowan and yellow-fruited rowan. In the southern, southwestern, and less often in the middle regions of Russia, Crimean large-fruited rowan (Sorbus domestica), which is also called domestic, is bred. The peculiarity of this species is large pear-shaped fruits, reaching 3.5 cm in diameter and 20 g in weight, having a particularly pleasant taste due to high sugar content (about 14%).Rowan grows everywhere throughout the forest and forest-steppe zone of the European part of Russia (with the exception, perhaps, of the Far North), in the wooded regions of the Crimea and the Caucasus. It can often be found in coniferous and mixed coniferous-deciduous forests, along the banks of lakes and rivers, in fields and along roads. She does not like shady places and mainly grows not in deep forests, but on the edges and clearings of forests. Rowan is often a decoration of city parks, alleys and squares.
Video on the topic
On globes and geographical maps there is a coordinate system. With its help, you can plot any object on a globe or map, as well as find it on the earth's surface. What is this system, and how to determine the coordinates of any object on the surface of the Earth with its participation? We will try to talk about this in this article.
Geographic latitude and longitude
Longitude and latitude are geographical concepts that are measured in angular units (degrees). They serve to indicate the position of any point (object) on the earth's surface.
Geographic latitude is the angle between a plumb line at a particular point and the plane of the equator (zero parallel). Latitude in the Southern Hemisphere is called southern, and in the Northern Hemisphere it is called northern. Can vary from 0∗ to 90∗.
Geographic longitude is the angle made by the meridian plane at a certain point to the plane of the prime meridian. If the longitude is counted east from the prime Greenwich meridian, then it will be east longitude, and if it is to the west, then it will be west longitude. Longitude values can range from 0∗ to 180∗. Most often, on globes and maps, meridians (longitude) are indicated when they intersect with the equator.
How to determine your coordinates
When a person finds himself in an emergency situation, he must, first of all, be well oriented in the area. In some cases, it is necessary to have certain skills in determining geographical coordinates their location, for example, in order to hand them over to rescuers. There are several ways to do this using improvised methods. We present the simplest of them.
Determining longitude by gnomon
If you go traveling, it is best to set your watch to Greenwich time:
- It is necessary to determine when it will be noon GMT in a given area.
- Stick a stick (gnomon) to determine the shortest solar shadow at noon.
- Find the minimum shadow cast by the gnomon. This time will be local noon. In addition, this shadow will point strictly north at this time.
- Using this time, calculate the longitude of the place where you are.
Calculations are made based on the following:
- since the Earth makes a complete revolution in 24 hours, therefore, it will travel 15 ∗ (degrees) in 1 hour;
- 4 minutes of time will be equal to 1 geographical degree;
- 1 second of longitude will be equal to 4 seconds of time;
- if noon occurs before 12 o'clock GMT, this means that you are in the Eastern Hemisphere;
- If you spot the shortest shadow after 12 o'clock GMT, then you are in the Western Hemisphere.
An example of the simplest calculation of longitude: the shortest shadow was cast by the gnomon at 11 hours 36 minutes, that is, noon came 24 minutes earlier than at Greenwich. Based on the fact that 4 minutes of time are equal to 1 ∗ longitude, we calculate - 24 minutes / 4 minutes = 6 ∗. This means that you are in the Eastern Hemisphere at 6 ∗ longitude.
How to determine geographic latitude
The determination is made using a protractor and a plumb line. To do this, a protractor is made from 2 rectangular strips and fastened in the form of a compass so that the angle between them can be changed.
- A thread with a load is fixed in the central part of the protractor and plays the role of a plumb line.
- With its base, the protractor is aimed at the North Star.
- 90 ∗ is subtracted from the angle between the plumb line of the protractor and its base. The result is the angle between the horizon and the North Star. Since this star is only 1 ∗ deviated from the axis of the world pole, the resulting angle will be equal to the latitude of the place where you are given time you are.
How to determine geographic coordinates
The simplest way to determine geographic coordinates, which does not require any calculations, is this:
- Google maps opens.
- Find the exact place there;
- the map is moved with the mouse, moved away and zoomed in using its wheel
- find a settlement by name using the search.
- Click on to the right place right mouse button. Select the required item from the menu that opens. IN in this case“What is here?” Geographic coordinates will appear in the search line at the top of the window. For example: Sochi - 43.596306, 39.7229. They indicate the geographic latitude and longitude of the center of that city. This way you can determine the coordinates of your street or house.
Using the same coordinates you can see the place on the map. You just can’t swap these numbers. If you put longitude first and latitude second, you risk ending up in a different place. For example, instead of Moscow you will end up in Turkmenistan.
How to determine coordinates on a map
To determine the geographic latitude of an object, you need to find the closest parallel to it from the equator. For example, Moscow is located between the 50th and 60th parallels. The closest parallel from the equator is the 50th. To this figure is added the number of degrees of the meridian arc, which is calculated from the 50th parallel to the desired object. This number is 6. Therefore, 50 + 6 = 56. Moscow lies on the 56th parallel.
To determine the geographic longitude of an object, find the meridian where it is located. For example, St. Petersburg lies east of Greenwich. Meridian, this one is 30 ∗ away from the prime meridian. This means that the city of St. Petersburg is located in the Eastern Hemisphere at a longitude of 30 ∗.
How to determine the coordinates of the geographic longitude of the desired object if it is located between two meridians? At the very beginning, the longitude of the meridian that is located closer to Greenwich is determined. Then to given value it is necessary to add the number of degrees that is on the parallel arc the distance between the object and the meridian closest to Greenwich.
Example, Moscow is located east of the 30 ∗ meridian. Between it and Moscow the arc of parallel is 8 ∗. This means that Moscow has an eastern longitude and it is equal to 38 ∗ (E).
How to determine your coordinates on topographic maps? Geodetic and astronomical coordinates of the same objects differ on average by 70 m. Parallels and meridians on topographic maps are the inner frames of the sheets. Their latitude and longitude are written in the corner of each sheet. Western Hemisphere map sheets are marked "West of Greenwich" in the northwest corner of the frame. Maps of the Eastern Hemisphere will accordingly be marked “East of Greenwich.”
Geographic coordinates consist of two components: latitude and longitude, angular values, using which each person can determine the location of any object on the world map. Studying latitude and longitude globe practiced back in ancient times.
Concept of geographical latitude
Latitude is a geographic coordinate among spherical coordinate systems that defines points located on the Earth's surface relative to the equator. The geographic latitude of objects located in the northern hemisphere is considered positive, and in the southern hemisphere - negative.
In geography, there is the concept of southern and northern latitudes. Determining which latitude is southern and which is northern is simple: if a point moves from the equator towards the North Pole, it falls into the zone of northern latitudes.
Latitudes on the map are represented by lines running parallel to the equator and to each other, hence the name of these lines - parallels. The distance between parallels is measured not in kilometers, but in degrees, minutes and seconds.
Each degree consists of 60 minutes, 1 minute - of 60 seconds. The equator is zero latitude, northern and South Pole located at 90 degrees north and 90 degrees south latitude respectively.
One degree of geographic longitude is equal to 1/360 of the length of the equator.
The concept of geographical longitude
Longitude is a coordinate in a geographic coordinate system that determines the location of a point relative to the prime meridian. Thanks to longitude, we can know the position of an object relative to west and east.
In geographical science, the zero reference point for geographic longitude is considered to be the Greenwich Laboratory, which is located in east London (Greenwich meridian).
The lines that define longitude are called meridians. All meridians run perpendicular to the equator line. All meridians intersect at two points - at the North and South Pole.
The territories that are located east of the Greenwich meridian are called the region of eastern longitudes, the territories in the western direction are called the region of western longitudes.
Most continents are located in the region of eastern longitudes, with the exception of only two continents - Southern and North America. Points located on meridians have the same longitude but different latitude.
1/180th of the meridian is one degree of latitude. The average length of one degree of latitude becomes approximately 111 km. Indicators of eastern longitude are considered positive, indicators of western longitude are considered negative.
Geographical coordinates determine the position of a point on the earth's surface. Geographic coordinates are based on the spherical principle and consist of latitude and longitude.
Latitude- the angle between the local zenith direction and the equatorial plane, measured from 0° to 90° on both sides of the equator. The geographic latitude of points located in the northern hemisphere (northern latitude) is usually considered positive, the latitude of points in the southern hemisphere is considered negative. It is customary to speak of latitudes close to the poles as high, and about those close to the equator - as about low.
Longitude- the angle between the plane of the meridian passing through a given point and the plane of the initial prime meridian, from which longitude is measured. Longitudes from 0° to 180° east of the prime meridian are called eastern, and to the west - western. Eastern longitudes are considered positive, western longitudes negative.
Geographic coordinates recording format
Geographic coordinates of a single point can be expressed in different formats. Depending on whether minutes and seconds are represented as values from 0 to 60 or from 0 to 100 (decimals).
The coordinate format is usually written as follows: DD- degrees, MM- minutes, SS- seconds, if minutes and seconds are presented as decimals, then they are written simply DD.DDDD. For example:
- DD MM SS: 50° 40" 45"" E, 40 50" 30"" N - degrees, minutes, seconds
- DDMM.MM: 50° 40.75" E, 40 50.5" N - degrees, decimal minutes
- DD.DDDDD: 50.67916 E, 40.841666 N - decimal degrees
Why do you need to know the coordinates of your home?
Often, houses in holiday villages and many villages do not have clear navigation consisting of signs with street names and house numbers, or even houses with signs with numbers can be scattered throughout the village in a random order (historically established as the village was developed). There are times when everything is fine with navigation in a populated area, but not all car GPS navigators have such a house or street. Residents of such houses have to explain for a long time and, as a rule, confusingly how to get to them using different landmarks. In this case, it is easier to give the coordinates of the house, because any car navigator can plot the route using the coordinates.
To study the technical feasibility of connecting the Internet to country house We also ask our customers to provide the coordinates of the house, especially if it is not located at the address on any of the online mapping services.
Determining coordinates using online mapping services
Currently, the most famous online mapping services with a search function are Google and Yandex maps. Let's look at how you can determine geographic coordinates from a map or satellite image in the service Google Maps:
2. Find the exact location on the map. For this card can be moved mouse, zoom in and out by scrolling the mouse wheel. You can also find the desired location using search by name using a locality, street and house. To find the location of your home as accurately as possible, switch between display modes: Map, Hybrid or Satellite.
3. Click right click on the desired location on the map and select from the menu that opens paragraph “What's in here?” . A marker in the form of a green arrow will appear on the map. Repeat the operation if the marker is not positioned accurately.
4. When you hover your mouse over the green arrow, the geographic coordinates of the location will appear, and they will also appear in the search bar from where they can be copied to the clipboard.
Rice. 1. Determining the coordinates of a place using a pointer on a Google map
Now let's look at how you can determine geographic coordinates from a map or satellite image in the service Yandex maps:
To find a place, we use the same algorithm as for searching on Google maps. Open Yandex.Maps: http://maps.yandex.ru. To obtain coordinates on a Yandex map, use tool"Get information"(button with an arrow and a question mark, in the upper left part of the map). When you click on the map with this tool, a marker appears on the map and coordinates are displayed in the search bar.
Rice. 2. Determining the coordinates of a place using a sign on the Yandex map
Search engine maps show coordinates in degrees s by default. decimal with "-" signs for negative longitude. On Google maps and Yandex maps, first latitude, then longitude (until October 2012, Yandex maps adopted reverse order: first longitude, then latitude).
