Łebsko
| Łebsko | ||
|---|---|---|
|
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| Geographical location | Pomerania , Poland | |
| Tributaries | Leba | |
| Drain | Leba | |
| Location close to the shore | Łeba | |
| Data | ||
| Coordinates | 54 ° 42 ′ 30 ″ N , 17 ° 24 ′ 30 ″ E | |
|
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| Altitude above sea level | 0.3 m | |
| surface | 75 km² | |
| Maximum depth | 5.8 m | |
| Middle deep | 2-3 m | |
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particularities |
Beach lake |
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The Jezioro Łebsko ( German Lebasee ) is a beach lake in the Polish Pomeranian Voivodeship .
Geographical location
The Lebasee is located in Western Pomerania , near the city of Leba ( Łeba ), northwest of Lauenburg ( Lębork ). Today it is part of the Slowinski National Park .
Geological condition
With an area of 75 km², Lake Lebasee is the largest of the Pomeranian beach lakes. The lake measures around 16 km in west-east direction and around 8 km in north-south direction. The lake has a greatest depth of 5.80 meters, but the average depth is only 2 to 3 meters.
The Lebasee is sealed off from the Baltic Sea by an 800 to 2.5 km wide and 17 km long spit . On the spit there is a shifting dune around 1300 meters long and 500 meters wide , the Lontzkedüne . With a height of 42 meters, this forms the highest elevation of the spit, it moves several meters further east every year and has already forced a few small settlements to give up. The Leba Lake is fed and traversed by the Leba river; it flows into the lake in the south and forms the outflow of the lake in the northeast near the city of Leba.
history
From 1776 the Lebasee was the subject of a failed improvement project under the direction of Franz Balthasar von Brenkenhoff . Brenkenhoff wanted to lower the water level of Lake Leba and thereby facilitate the drainage of the surrounding swamps. For this purpose, he had a canal dug from Lebasee to the Baltic Sea in 1776, roughly in the middle of the spit. In November 1776, the lake began to be drained.
The canal was used as a seaport for shipping from May 1777. It soon became apparent, however, that during storms the water of the Baltic Sea was pushed into the canal and thus into the Lebasee, the water level of the Lebasee rose as a result and floods were caused.
The canal structure was destroyed in a storm in March 1779 and there was a risk that the breakthrough could enlarge and the Lebasee could become a bay of the Baltic Sea. Therefore, the canal was closed again in 1782/1783 and the old Leba outflow from Lake Leba was cleaned and restored.
Web links
Individual evidence
- ↑ David Gilly : Continuation of the depiction of land and hydraulic engineering in Pomerania, Prussia and part of the New and Kurmark, broken off in the third volume on page 10 . In: Preußisches Ober-Bau-Departement (Hrsg.): Collection of useful essays and news relating to architecture . Zweyter Theil, Unger, Berlin 1798, pp. 3-16, especially pp. 15-16.
- ^ Benno von Knobelsdorff-Brenkenhoff : On Brenckenhoff's activity in the field of regional culture in Western and Western Pomerania 1762–1780. Fourth part. In: Baltic Studies . Volume 71 NF, 1985, ISSN 0067-3099 , pp. 81-104.