Lake Suigetsu
Lake Suigetsu | ||
---|---|---|
Primary inflows From the Hasu River via neighbouring Lake Mikata. | | |
Basin countries | Japan | |
Max. length | 2 km (1.2 mi) | |
Max. width | 2 km (1.2 mi) | |
Surface area | 4.3 km2 (1.7 sq mi) | |
Average depth | 34 m (112 ft) | |
Surface elevation | 0 m (0 ft) | |
Settlements | Wakasa, Fukui | |
References | suigetsu project |
Lake Suigetsu (水月湖, Suigetsu-ko) is a lake in the
The area of the lakes is now part of the Wakasa Bay National Park.
Mikata five lakes
All five lakes have different concentrations of salt. Lake Mikata is a fresh water lake, and Lake Hiruga contains ocean water. Lake Kugushi and Lake Hiruga are connected with Wakasa Bay.
The primary inflow of fresh water is from the Hasu River to Lake Mikata.
The size and the depth of the lakes are as follows,
- Lake Mikata: fresh water lake; area of 3.56 km2, 5.8 m deep
- Lake Suigetsu: brackish water lake; area of 4.16 km2, 34.0 m deep
- Lake Suga: brackish water lake; area of 0.91 km2, 13.0 m deep
- Lake Kugushi: brackish water lake; area of 1.40 km2, 2.5 m deep
- Lake Hiruga : ocean water lake; area of 0.92 km2, 38.5 m deep[1]
The lakes are all connected with channels or canals.
"Because Lake Kugushi opens into Wakasa Bay through a narrow and shallow river (Hayase River), seawater enters Lake Suigetsu periodically via Lake Kugushi during high tide."[2]
Lake Suga may be seen as the eastern part of Lake Suigetsu, since the two are joined by a wide channel.
Radiocarbon dating
The
The only inflow to Lake Suigetsu is through a shallow channel from the neighbouring Lake Mikata and there is little outflow. Consequently, only the finest sediment comes into the lake.[9] The water is anoxic (deoxygenated) preventing the growth of organisms and due to seasonal variations it is usually but not always possible to distinguish the annual deposits visually. It has taken almost twenty years to overcome the consequent problems, using multiple cores and new detection techniques to complete the sequence.
See also
References
- ^ Mikata-goko lakes (with map) www.travel-around-japan.com
- PMID 22791050.
- ^ Suigetsu 2006 Research Project, retrieved 19 Oct 2012
- .
- ^ Balter, Michael (15 Jan 2010). "Radiocarbon Daters Tune Up Their Time Machine". Science. Retrieved 6 Jun 2016.
- ^ "Japanese lake record improves radiocarbon dating". AAAS. 18 Oct 2012. Retrieved 18 Oct 2012.
- S2CID 28554111.
- ^ (2012) A New Radiocarbon Yardstick from Japan
- ^ Location, retrieved 19 Oct 2012
External links
- Lake Suigetsu - Location www.suigetsu.org
- Lake Suigetsu - www.suigetsu.org - Main page