Lake Inawashiro
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Lake Inawashiro | |
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Location | Fukushima Prefecture |
Coordinates | 37°28′29″N 140°05′37″E / 37.47472°N 140.09361°E |
Type | tectonic lake |
Primary outflows | Nippashi River |
Basin countries | Japan |
Surface area | 103.3 km2 (39.9 sq mi) |
Average depth | 51.5 m (169 ft) |
Max. depth | 94.6 m (310 ft) |
Water volume | 5.40 km3 (4,380,000 acre⋅ft) |
Shore length1 | 49 km (30 mi) |
Surface elevation | 514 m (1,686 ft) |
Islands | Okinajima |
1 Shore length is not a well-defined measure. |
Lake Inawashiro (
History
[edit]Lake Inawashiro was formed some 30–40,000 years ago when a tectonic depression was dammed by a major eruption and pyroclastic flow from Mount Bandai. The water is acidic with a pH value of approximately 5.0, and has a high degree of transparency. The water level was considerably less during the Jōmon period as numerous artifacts and ceramic fragments have been found offshore.
The lake water is an important source for irrigation in the Aizu region of western Fukushima Prefecture. An irrigation canal was completed during the Edo period and another, the Asaka Canal, in 1882. A third canal completed in 1915 supplies the city of Kōriyama with drinking and industrial water. The water also supplies a number of hydroelectric power plants. The lake is also an important tourist and leisure attraction in Fukushima Prefecture.
Notes
[edit]- ^ Takeda T., page 174.
- ^ Campbell, Allen; Nobel, David S (1993). Japan: An Illustrated Encyclopedia. Kodansha. p. 598. ISBN 406205938X.
References
[edit]- Takeda, Toru; Hishinuma, Tomio; Kamieda, Kinuyo; Dale, Leigh; Oguma, Chiyoichi (August 10, 1988), Hello! Fukushima - International Exchange Guide Book (1988 ed.), Fukushima City: Fukushima Mimpo Press
- World Lake Database
See also
[edit]External links
[edit]- Inawashiro Tourist Association
- Lake Inawashiro(Japanese travel guide)
- Lake Inawashiro(visit AIZU)