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| {{Short description|River in Germany}} | |||
| The '''Alster''' is a 56 ] long ] in Northern ], which flows through the city of ]. The Alster ends in the river ]. | |||
| {{Other uses}} | |||
| {{Expand German|topic=geo|date=June 2012}} | |||
| {{Infobox river | |||
| | name = Alster | |||
| | name_native = | |||
| | name_native_lang = | |||
| | name_other = | |||
| | name_etymology = | |||
| <!---------------------- IMAGE & MAP --> | |||
| | image = Aerial image of Binnenalster and Außenalster (view from the southwest).jpg | |||
| | image_size = 275px | |||
| | image_caption = Aerial view of the Alster's two lakes in ] | |||
| | map = Karte Hamburg Innenstadtkanäle.png | |||
| | map_size = 275px | |||
| | map_caption = Map of Alster and canals in Hamburg | |||
| | pushpin_map = | |||
| | pushpin_map_size = 275px | |||
| | pushpin_map_caption= | |||
| <!---------------------- LOCATION --> | |||
| | subdivision_type1 = Country | |||
| | subdivision_name1 = ] | |||
| | subdivision_type2 = ] | |||
| | subdivision_name2 = {{hlist|]|]}} | |||
| | subdivision_type3 = | |||
| | subdivision_name3 = | |||
| | subdivision_type4 = | |||
| | subdivision_name4 = | |||
| | subdivision_type5 = | |||
| | subdivision_name5 = | |||
| <!---------------------- PHYSICAL CHARACTERISTICS --> | |||
| | length = {{convert|56|km|mi|abbr=on}} | |||
| | width_min = | |||
| | width_avg = | |||
| | width_max = | |||
| | depth_min = | |||
| | depth_avg = | |||
| | depth_max = | |||
| | discharge1_location= | |||
| | discharge1_min = | |||
| | discharge1_avg = {{convert|5.8|m3/s|cuft/s|abbr=on}} | |||
| | discharge1_max = | |||
| <!---------------------- BASIN FEATURES --> | |||
| | source1 = | |||
| | source1_location = ] | |||
| | source1_coordinates= {{coord|53|45|49.1|N|10|0|17.4|E|display=inline}} | |||
| | source1_elevation = {{convert|31|m|abbr=on}} | |||
| | mouth = ] | |||
| | mouth_location = ] | |||
| | mouth_coordinates = {{coord|53|32|40|N|9|59|0|E|display=inline,title}} | |||
| | mouth_elevation = {{convert|4|m|abbr=on}} | |||
| | progression = | |||
| | river_system = | |||
| | basin_size = | |||
| | tributaries_left = ], ], ], ], ] | |||
| | tributaries_right = ], ] | |||
| | custom_label = Progression | |||
| | custom_data = {{PElbe}} | |||
| | extra = | |||
| }} | |||
| The '''Alster''' ({{IPA|de|ˈalstɐ|-|De-Alster.ogg}}) is a right tributary of the ] river in ]. It has its source near ], ], flows somewhat southwards through much of the Free and Hanseatic City of ] and joins the Elbe in central Hamburg. | |||
| The Alster is Hamburg's second most important river. While the Elbe river is a tidal navigation of international significance and prone to flooding, the Alster is a non-tidal, slow-flowing and in some places, seemingly untouched idyll of nature, in other places tamed and landscaped ]. In the city center, the river forms two lakes, both prominent features in Hamburg's ]. | |||
| The Alster forms two artificial lakes within the city limits of Hamburg, called ] (outer Alster) and ] (inner Alster). | |||
| == Geography == | |||
| ] | |||
| ]]] | |||
| In total, the Alster is {{convert|56|km|abbr=on}} long and has an incline from 31 m to 4 m above sea level. Its ] is about {{convert|587|km2|abbr=on}}.<ref name=Eckhardt>]. ''Alster'' in ''Hamburg Lexikon'', p. 24</ref> Left tributaries to the Alster are: Rönne, Alte Alster, Sielbek, Ammersbek, Drosselbek, ], Rodenbek, Lohbek, ], ], and ] (Eilbek); right tributaries to the Alster are: Mühlenau (or Mühlenbach), Diekbek, Mellingbek, Susebek, ], and ]. | |||
| === Upper course === | |||
| ] | |||
| The source of the Alster is a small ] in the Timhagen Brook near ], approximately {{convert|25|km|abbr=on}} north of ]. The small brook makes a couple of curves before entering Hamburg territory at ] and ]. At that point, the Alster has passed a couple of smaller locks and has been passed by 15 bridges. From here on, Hamburgers use the river for water sports, especially for canoe and kayak trips on the river, or hikes along its shores. At ], the Alster runs past ]. At ] the Alster reaches a weir, approximately at the height of the former ] Lock, the last water level regulation before reaching the inner city. From Fuhlsbüttel downstream, the Alster's course, has been straightened on several locations, with old and new river beds occasionally forming parallel canal beds. Between city limits and the inner city's first lake − the ] − the river is crossed by ]. | |||
| === Lower course === | |||
| {{See also|Außenalster|Binnenalster}} | |||
| For Hamburg's inner city, the river is a major geographical feature and greatly defines its ]. Through ponding of the river in the 13th century, two artificial lakes, the ] (Outer Alster) and the smaller ] (Inner Alster) were created in central Hamburg. These two lakes and the surrounding parks serve as important ]al areas in the heart of the city. Binnenalster and the subsequent Kleine Alster form important ]. The Alster's final section between Kleine Alster and its mouth at Binnenhafen, is called '''Alsterfleet''', as part of a network of inner-city canals, including Bleichenfleet, Herrengrabenfleet, Mönkedammfleet, Neuerwallfleet and ]. Alsterfleet is regulated by two locks at ]/] and Baumwall, the latter protecting it from the Elbe tide. | |||
| ] (left), Reesendammbrücke (center) and ] (far right)]] | |||
| == History == | |||
| ] was founded at the mouth of the Alster river in the 9th century and used it as a port. The water was used to flood the ]s of the fortifications.<ref name=Eckhardt/> The Alster has been dammed since 1190, originally to power a watermill. In 1235 a further dam was built for a second mill, which changed the shape of the river to be like a lake. | |||
| In the 15th and 16th century, an Alster canal was built to connect Hamburg with ]. The canal was about {{convert|8|km|abbr=on}} long and built from the Alster to the ], a tributary of the ] river, at ]. Because of the difficulties in holding water, especially near marsh areas, the {{convert|91|km|abbr=on}} long waterway from Hamburg to Lübeck was navigable from 1529 to 1550 only.<ref>]. ''Alster-Kanal'' in ''Hamburg Lexikon'', p. 26</ref> Hamburg expanded along the shores of the Alster, and several locks were constructed to make the river navigable. Until the 19th century water transport with ]s were used up to the town of ]. The barges—transporting building material, fuel, and foods—were staked or hauled.<ref name=Eckhardt/> | |||
| == Economy == | |||
| ] | |||
| The Alster is navigatable some 9 km upstream from the mouth. Alster Touristik GmbH (ATG), a ] of the ], provides public and touristic transport on a fleet of ] in the city of Hamburg.<ref> alstertouristik.de</ref> Along the entire course within Hamburg, rowing or paddle boats are available for rent. | |||
| == Ecology == | |||
| ] | |||
| In general, the Alster is assessed to be clean. Hamburg's Alster and its lakes and canals are famous for its ], cared for out of public funds since the 16th century. | |||
| == Legacy == | |||
| The Alster basin was an important model for the design of the ] basin, constructed in the early 20th century.<ref>{{cite book|author=Karl Haglund|title=Inventing the Charles River|location=]|publisher=]|year=2003|isbn=0-262-08307-8|url-access=registration|url=https://archive.org/details/inventingcharles00hagl}}</ref> | |||
| Throughout much of Germany, an ] (literally: "Alster's water") is the name for a type of ], a concoction of equal parts of beer and lemonade. The river inspired the Hamburg-born composer ] to compose the popular ] "Mondnacht auf der Alster"<ref>, youtube.com</ref> (in English: "Moonlit Night on the Alster"). Hamburg's largest aquatic center, the ], is named after the river. | |||
| == See also == | |||
| {{Portal|Hamburg}} | |||
| * ] | |||
| * ] | |||
| * ] | |||
| == References == | |||
| {{Reflist}} | |||
| == Literature == | |||
| <cite id=hhlex>{{cite encyclopedia |editor=Franklin Koplitzsch and Daniel Tilgner |encyclopedia=Hamburg Lexikon |publisher=Ellert&Richter |year=2005 |edition=3 |isbn=3-8319-0179-1|language=German |title=Hamburg-Lexikon }}</cite> | |||
| == External links == | |||
| {{Commons category|Alster (River)|Alster}} | |||
| * on bildarchiv-hamburg.de | |||
| * on bilderbuch-hamburg.de | |||
| {{Hamburg}} | |||
| {{Rivers of Germany}} | |||
| {{Authority control}} | |||
| ] | |||
| ] | |||
| ] | |||
| ] | |||
Latest revision as of 13:38, 23 November 2024
River in Germany For other uses, see Alster (disambiguation). | You can help expand this article with text translated from the corresponding article in German. (June 2012) Click for important translation instructions.
|
| Alster | |
|---|---|
.jpg) Aerial view of the Alster's two lakes in Hamburg | |
 Map of Alster and canals in Hamburg | |
| Location | |
| Country | Germany |
| States | |
| Physical characteristics | |
| Source | |
| • location | Henstedt-Ulzburg |
| • coordinates | 53°45′49.1″N 10°0′17.4″E / 53.763639°N 10.004833°E / 53.763639; 10.004833 |
| • elevation | 31 m (102 ft) |
| Mouth | Elbe |
| • location | Hamburg |
| • coordinates | 53°32′40″N 9°59′0″E / 53.54444°N 9.98333°E / 53.54444; 9.98333 |
| • elevation | 4 m (13 ft) |
| Length | 56 km (35 mi) |
| Discharge | |
| • average | 5.8 m/s (200 cu ft/s) |
| Basin features | |
| Tributaries | |
| • left | Bredenbek, Ammersbek, Saselbek, Osterbek, Wandse |
| • right | Tarpenbek, Isebek |
| Progression | Elbe→ North Sea |
The Alster (German pronunciation: [ˈalstɐ] ) is a right tributary of the Elbe river in Northern Germany. It has its source near Henstedt-Ulzburg, Schleswig-Holstein, flows somewhat southwards through much of the Free and Hanseatic City of Hamburg and joins the Elbe in central Hamburg.
The Alster is Hamburg's second most important river. While the Elbe river is a tidal navigation of international significance and prone to flooding, the Alster is a non-tidal, slow-flowing and in some places, seemingly untouched idyll of nature, in other places tamed and landscaped urban space. In the city center, the river forms two lakes, both prominent features in Hamburg's cityscape.
Geography
In total, the Alster is 56 km (35 mi) long and has an incline from 31 m to 4 m above sea level. Its drainage basin is about 587 km (227 sq mi). Left tributaries to the Alster are: Rönne, Alte Alster, Sielbek, Ammersbek, Drosselbek, Bredenbek, Rodenbek, Lohbek, Saselbek, Osterbek, and Wandse (Eilbek); right tributaries to the Alster are: Mühlenau (or Mühlenbach), Diekbek, Mellingbek, Susebek, Tarpenbek, and Isebek.
Upper course
The source of the Alster is a small bog pool in the Timhagen Brook near Henstedt-Ulzburg, approximately 25 km (16 mi) north of Hamburg. The small brook makes a couple of curves before entering Hamburg territory at Duvenstedt and Wohldorf-Ohlstedt. At that point, the Alster has passed a couple of smaller locks and has been passed by 15 bridges. From here on, Hamburgers use the river for water sports, especially for canoe and kayak trips on the river, or hikes along its shores. At Wellingsbüttel, the Alster runs past Wellingsbüttel Manor. At Ohlsdorf the Alster reaches a weir, approximately at the height of the former Fuhlsbüttel Lock, the last water level regulation before reaching the inner city. From Fuhlsbüttel downstream, the Alster's course, has been straightened on several locations, with old and new river beds occasionally forming parallel canal beds. Between city limits and the inner city's first lake − the Außenalster − the river is crossed by 42 bridges.
Lower course
See also: Außenalster and BinnenalsterFor Hamburg's inner city, the river is a major geographical feature and greatly defines its cityscape. Through ponding of the river in the 13th century, two artificial lakes, the Außenalster (Outer Alster) and the smaller Binnenalster (Inner Alster) were created in central Hamburg. These two lakes and the surrounding parks serve as important recreational areas in the heart of the city. Binnenalster and the subsequent Kleine Alster form important urban spaces. The Alster's final section between Kleine Alster and its mouth at Binnenhafen, is called Alsterfleet, as part of a network of inner-city canals, including Bleichenfleet, Herrengrabenfleet, Mönkedammfleet, Neuerwallfleet and Nikolaifleet. Alsterfleet is regulated by two locks at Rathaus/Rathausmarkt and Baumwall, the latter protecting it from the Elbe tide.
History
Hamburg was founded at the mouth of the Alster river in the 9th century and used it as a port. The water was used to flood the moats of the fortifications. The Alster has been dammed since 1190, originally to power a watermill. In 1235 a further dam was built for a second mill, which changed the shape of the river to be like a lake.
In the 15th and 16th century, an Alster canal was built to connect Hamburg with Lübeck. The canal was about 8 km (5.0 mi) long and built from the Alster to the Beste, a tributary of the Trave river, at Sülfeld. Because of the difficulties in holding water, especially near marsh areas, the 91 km (57 mi) long waterway from Hamburg to Lübeck was navigable from 1529 to 1550 only. Hamburg expanded along the shores of the Alster, and several locks were constructed to make the river navigable. Until the 19th century water transport with barges were used up to the town of Kayhude. The barges—transporting building material, fuel, and foods—were staked or hauled.
Economy
The Alster is navigatable some 9 km upstream from the mouth. Alster Touristik GmbH (ATG), a subsidiary of the Hamburger Hochbahn, provides public and touristic transport on a fleet of Alster ferries in the city of Hamburg. Along the entire course within Hamburg, rowing or paddle boats are available for rent.
Ecology
In general, the Alster is assessed to be clean. Hamburg's Alster and its lakes and canals are famous for its white swans, cared for out of public funds since the 16th century.
Legacy
The Alster basin was an important model for the design of the Charles River basin, constructed in the early 20th century.
Throughout much of Germany, an Alsterwasser (literally: "Alster's water") is the name for a type of shandy, a concoction of equal parts of beer and lemonade. The river inspired the Hamburg-born composer Oscar Fetrás to compose the popular waltz "Mondnacht auf der Alster" (in English: "Moonlit Night on the Alster"). Hamburg's largest aquatic center, the Alster-Schwimmhalle, is named after the river.
See also
References
- ^ Hans Wilhelm Eckhardt. Alster in Hamburg Lexikon, p. 24
- Hans Wilhelm Eckhardt. Alster-Kanal in Hamburg Lexikon, p. 26
- Alster Touristik alstertouristik.de
- Karl Haglund (2003). Inventing the Charles River. Cambridge, Massachusetts: The MIT Press. ISBN 0-262-08307-8.
- Oscar Fetrás - Mondnacht auf der Alster, youtube.com
Literature
Franklin Koplitzsch and Daniel Tilgner, ed. (2005). "Hamburg-Lexikon". Hamburg Lexikon (in German) (3 ed.). Ellert&Richter. ISBN 3-8319-0179-1.
External links
 Free and Hanseatic City of Hamburg | |
|---|---|
| Freie und Hansestadt Hamburg | |
| Government and symbols | |
| History and culture | |
| Economy and transport | |
 Rivers of Germany by drainage basin or main stem | |
|---|---|
| Baltic Sea | |
| Black Sea | |
| North Sea | |
| Maas | |
