| Ohře | |
|---|---|
.jpg) The Ohře inLouny | |
 | |
| Location | |
| Countries | |
| States/ Regions | |
| Physical characteristics | |
| Source | |
| • location | Bad Weißenstadt,Fichtel Mountains |
| • coordinates | 50°4′29″N11°49′35″E / 50.07472°N 11.82639°E /50.07472; 11.82639 |
| • elevation | 752 m (2,467 ft) |
| Mouth | |
• location | Elbe,Czech Republic |
• coordinates | 50°31′44″N14°8′11″E / 50.52889°N 14.13639°E /50.52889; 14.13639 |
• elevation | 143 m (469 ft) |
| Length | 304.6 km (189.3 mi) |
| Basin size | 5,606.1 km2 (2,164.5 sq mi) |
| Discharge | |
| • average | 38 m3/s (1,300 cu ft/s) |
| Basin features | |
| Progression | Elbe→North Sea |
TheOhře (Czech pronunciation:[ˈoɦr̝ɛ]ⓘ), also known in English and German asEger (German pronunciation:[ˈeːɡɐ]ⓘ), is ariver inGermany and theCzech Republic, a lefttributary of theElbe River. It flows through theBavarian district ofUpper Franconia in Germany, and through theKarlovy Vary andÚstí nad Labem regions in the Czech Republic. It is 304.6 km (189.3 mi) long, of which 256 km (159 mi) is in the Czech Republic, making it thefourth longest river in the country.
The name is ofCeltic or pre-Celtic origin. In the 9th century, it appeared asAgara. According to one theory, its meaning was 'salmon river' (composed of the wordsag,eg – 'salmon', andare,ara – 'flowing water').[1] Another theory suggests that the name was derived fromagriā and meant a fast-moving, fast-flowing river. In the 12th century, Ohře was written asEgre,Oegre andOgre.[2][3]
The Ohře originates in the territory ofBad Weißenstadt in theFichtel Mountains at an elevation of 752 m (2,467 ft), below theSchneeberg mountain. It flows toLitoměřice, where it enters theElbe River at an elevation of 143 m (469 ft).[4]
The Ohře flows through the Fichtel Mountains in an eastward direction, through Lake Weissenstadt (Weißenstädter See) and through the towns ofRöslau andMarktleuthen, and, after almost 50 km, reaches the Czech-German border nearHohenberg an der Eger. It then flows through the historic region of the Czech Republic which was known until 1945 asEgerland. The river passes the towns ofCheb, (German:Eger, like the river),Loket,Sokolov,Karlovy Vary,Klášterec nad Ohří,Kadaň,Žatec,Louny,Libochovice,Budyně nad Ohří andTerezín before flowing into the river Elbe at Litoměřice.
The river is 304.6 km (189.3 mi) long,[5] of which 256 km (159 mi) is in the Czech Republic,[1][a][b][c] making it thefourth longest river in the Czech Republic. The German part of the river (including the border section) is 49.8 km (30.9 mi) long.[7]
The highestvolume flow rate occurs in spring. The average volume flow rate at the mouth is 37.94 m³/s.[8] The lower part of the river flows through areas with the lowest average precipitation in the Czech Republic (400–500 mm).[4]
The Ohře'sdrainage basin has an area of 5,606.1 km2 (2,164.5 sq mi).[4][d] The area of the drainage basin in the Czech Republic is 4,601.1 km2 (1,776.5 sq mi),[6] in Bavaria is 920.4 km2 (355.4 sq mi).[7] The rest of the drainage basin is in Saxony.
The drainage basin is divided to further third-level basin areas:[4]
| Basin code | Basin name | Area (km2) |
|---|---|---|
| 1-13-01 | Ohře to the confluence with Teplá | 2,471.0 |
| 1-13-02 | Teplá and Ohře to the confluence with Liboc | 1,147.1 |
| 1-13-03 | Liboc and Ohře to the confluence with Chomutovka | 1,262.7 |
| 1-13-04 | Ohře from Chomutovka to the mouth | 725.3 |
The longest tributaries of the Ohře are:[9]
| Tributary | Length (km) | River km | Side |
|---|---|---|---|
| Wondreb / Odrava | 66.1 | 224.1 | right |
| Teplá | 65.1 | 175.3 | right |
| Blšanka | 50.8 | 81.3 | right |
| Chomutovka | 50.4 | 65.8 | left |
| Röslau / Reslava | 46.4 | 252.3 | right |
| Liboc | 46.4 | 91.1 | right |
| Svatava / Zwota | 41.0 | 203.0 | left |
| Rolava | 36.6 | 177.4 | left |
| Libocký potok | 31.8 | 219.4 | left |
| Bystřice | 29.6 | 153.8 | left |
| Plesná / Fleißenbach | 29.1 | 226.6 | left |
| Prunéřovský potok | 24.7 | 126.4 | left |
| Hasina | 24.4 | 69.8 | right |
| Smolnický potok | 23.6 | 47.0 | right |
| Libava | 22.7 | 216.9 | right |
| Chodovský potok | 22.7 | 178.0 | left |
| Slatinný potok | 20.8 | 236.0 | left |
| Lobezský potok | 20.0 | 202.7 | right |
.jpg)
The Ohře is primarily used for irrigation andhydroelectric energy. There are two reservoirs: Skalka (built in 1962–1964, area 378 ha (930 acres)[10]) and Nechranice (built 1961–1968, area 1,338 ha (3,310 acres)[11]).
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