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Lake Ladoga (Russian:
Density ratio: density ratio: density ratio: density ratio
Be located in
Russia
northwest
Leningrad Oblast
with
Republic of Karelia
Between, northwest approach
Finland
Borders. for
Neva
The source, the last inflow
Gulf of Finland
(
Baltic Sea
Part of).
Ladozhskoye Lake, which has about 660 islands, is
Europe
The largest lake and the 15th largest lake in the world.
- Chinese name
- Lake Ladoga
- Foreign name
- Ladozhskoye Lake
- Geographical position
- North-eastern Leningrad Oblast in north-western Russia
- Area product
- 18000 km²
- Mean depth
- 51 meters
- Innermost part
- 230 m
- Lake volume
- Some 908㎞³
catalogue
It is the largest lake in Europe and the 15th largest in the world.
The lake is the largest in Europe
Fresh water lake
, formerly known as
Nieva Lake
. in
Russia
Part of northwestern Europe, in
St. Petersburg
About 40 kilometers northeast.
The lake is 5 meters above sea level,
Lake length
219 km, average width 83 km, area 18,000
Square kilometer
. Department of
Tectonic lake
The lake is shallow in the south and deep in the north, with an average depth of 51 meters, the deepest point in the north of 230 meters, and the volume of the lake is 908
Cubic kilometer
.
The north shore is mostly high and rocky, with many deep fjords and winding lakeshore. The south bank is low and flat
spit
And the shoal.
It is fed by the Volhov, Sveri and Vuoksa rivers, to the southwest
Neva
Flow out, flow out
Baltic Sea
. The lake is stormy and not conducive to navigation.
The south bank built the new Ladoga canal around the lake for communication
White Sea
- Baltic Sea and
Volga
- Important shipping lanes in the Baltic Sea. In the lake
fish
Abundant to salmon, perch, brama,
whitefish
, sturgeon,
esox
And smelt fish mainly.
The basin of Lake Ladoga has a total area of nearly 260,000 square kilometers, with about 571 small lakes and 3,500 rivers more than 10 kilometers long.
The largest are the Volkhov River in the south, the Svir River in the southeast, and the Vuoksa River in the west. There are about 660 islands in the lake. It covers an area of 456 square kilometers (176 square miles).
Lakes
Cold zone climate
The average annual precipitation is 610 mm (24 inches). The glacial period is long, up to 5 to 6 months in the coastal areas, and about 3 months in the middle.
World War II
When in Leningrad (
St. Petersburg
During the siege (1941.9 to 1943.3), Lake Ladoga became the lifeline of transportation, the supply of military supplies and the evacuation of the sick and wounded through Lake Ladoga.
Along the lake are the cities of Priozyorsk, Shlisselburg and Sortavala.
View of Lake Ladoga
View of Lake Ladoga
The main tributaries of Lake Ladoga are:
-
Xixi River (South, flow: 53 cubic meters per second)
Lake Ladoga is 4 meters above sea level and the water flows into it
Neva
Final injection
Baltic Sea
Gulf of Finland
.
The whole of Lake Ladoga is navigable, and it is part of the Volga-Baltic Sea waterway, which connects
Volga
And the Baltic Sea. The Novoladozhsky Canalbypasses the lake in the southern part, connecting the Neva to the Svir.
Geographical coordinates
: 61° 00’n, 31° 00’e
Lake Ladoga, Russia
Catchment countries
: Russia, Finland
Lake length
: 219 km
Lake width
: 138 km
Lake area
: 17700㎞²
Average depth
: 51 m
Deepest depth
: 230 m
Water body volume
: 908㎞³
altitude
: 4 meters
island
quantity
: About 660 seats
The lake district basically belongs to
Subfrigid zone
the
Continental climate
, the average
Annual precipitation
610 mm (24 inches). The water level is highest in June and July, and lowest in December and January
Annual range
About 0.8 m (2.6 ft).
The difference can be up to about 3 meters (9.8 feet).
Ice period
Longer, up to 5 to 6 months in coastal areas, about 3 months in the middle.
Ice begins to freeze in December along the coast and in January or February in the middle of the lake. The average thickness of the ice is 50 to 60 centimeters (20 to 23 inches), and the maximum thickness is 88.9 to 99 centimeters (35 to 39 inches).
Most thaws begin to thaw in March and April, but the north begins to thaw as late as May.
Lake Ladoga
Catchment area
It includes 50,000 lakes and 3,500 rivers over 10 km in length. About 85% of the water comes from tributaries, 13% from rainwater and the remaining 2% from groundwater.
The main tributaries of Lake Ladoga are:
Schas River (south, flow: 53 cubic meters per second).
Shlisselburg (59 degrees 56 'N, 31 degrees 02' E)
Novaya Ladoga (latitude 60 degrees 06 'N, longitude 32 degrees 18' E)
Syasstroy (latitude 60 degrees 08 'N, longitude 32 degrees 34' E)
Pitkyaranta (61 degrees 34 'N, 31 degrees 28' E)
Sortavala (61 degrees 42 'N, 30 degrees 41' E)
Lakhdenpokhya (61 degrees 31 'N, 30 degrees 12' E)
Priozersk (61 degrees 02 'N, 30 degrees 08' E)
June 1941, Germany
Fascism
right
The Soviet Union
Launch a surprise attack.
German army
marshal
Wilhelm Ritter von Loeb
commander
Army group
To Leningrad (
St. Petersburg
(Under the city.
Leningrad was besieged, almost completely cut off from the outside world, land transportation was completely cut off, and air access was only a liaison function, because air superiority was not on the Soviet side at that time.
Connected to the rear was Lake Ladoga, but the ships on the lake were often sunk by German aircraft, and food supplies in the city became increasingly difficult.
Just before winter was approaching, von Lieb's last general attack failed, and he turned to Tikhvin in an attempt to cut off all the supply lines to Leningrad, which was in danger!
Leningrad Municipal Party Committee and military Commission took a series
Emergency measure
In the event of the fall of Tikhvin, a road would be constructed from the Zaboriya railway station north around Tikhvin to New Ladoga to solve the problem of transporting food.
The road is more than 200 kilometers long, but there is a section of water on the shore of Lake Ladoga in the middle.
They went through a lot of archives and finally found a report in the 1905 Bulletin of the Russian Geographical Society. The author of the report was a lighthouse keeper named Suho Zakharov.
Based on decades of observation of Lake Ladoga, the author pointed out that the entire surface of Lake Ladoga does not freeze, but the area along the lake freezes every year, which is thick enough to support
mancar
Free passage.
The report also provides the date of the beginning of ice on the shores of Lake Ladoga. Further investigation of this information showed that the stretch of coastal water through which the road had to pass was bound to freeze. Sure enough, shortly after the arrival of winter, ice began to freeze along the shores of Lake Ladoga, and the thickness of the ice quickly exceeded 10 centimeters.
World War II remains at Fort Shlisheli on Lake Ladoga
Remnants of World War II anti-aircraft guns at Fort Shlisheli on Lake Ladoga
