Data Summary: Towada-ko (Lake Towada)
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| Site Name |
ASI-23 |
Photo : Aomori Prefectural Government |
| Lake Name |
Towada-ko (Lake Towada) |
| State |
Akita and Aomori Prefectures |
| Country |
Japan |
| Latitude |
40:3N |
| Longitude |
140:5E |
| Altitude [m] |
401 |
| Surface area [m2] |
59,000,000 |
Volume [m3] |
4,200,000,000 |
| Maximum depth [m] |
334 |
Mean depth [m] |
71 |
| Water level control |
Regulated |
Normal range of annual water level fluctuation [m] |
1.7 |
| Length of shoreline [m] |
27,500 |
Residence time [yr] |
8.5 |
| Catchment area [m2] |
129,000,000 |
Hours of bright Sunshine [hr yr-1] |
1,690.7 |
| Solar radiation [MJ m-2 day-1] |
- |
Freezing period |
Dec-Mar |
| Mixing type |
Dimictic |
Annual fish catch [t yr-1] |
88.2 |
| Total N loading [t yr-1] |
- |
Total P loading [t yr-1] |
- |
| Population |
263 |
Population density of catchment area [person km-2] |
2 |
WATER USAGE
| Domestic water usage [m3 sec-1] |
- |
Irigation water usage [m3 sec-1] |
- |
| Industrial water usage [m3 sec-1] |
- |
Power generation usage [m3 sec-1] |
- |
LAND USE
| Natural landscape [%] |
100 |
Agricultural land [%] |
0 |
Others [%] |
0 |
| Siltation |
- |
Toxic Contamination |
None |
| Eutrophication |
None |
Acidification |
None |
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