Data Summary: Akan-ko (Lake Akan)
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| Site Name |
ASI-21 |
Photo : T. Kira |
| Lake Name |
Akan-ko (Lake Akan) |
| State |
Hokkaido |
| Country |
Japan |
| Latitude |
43:3N |
| Longitude |
144:1E |
| Altitude [m] |
420 |
| Surface area [m2] |
13,000,000 |
Volume [m3] |
230,000,000 |
| Maximum depth [m] |
44.8 |
Mean depth [m] |
17.8 |
| Water level control |
- |
Normal range of annual water level fluctuation [m] |
- |
| Length of shoreline [m] |
25,900 |
Residence time [yr] |
- |
| Catchment area [m2] |
148,000,000 |
Hours of bright Sunshine [hr yr-1] |
2,218 |
| Solar radiation [MJ m-2 day-1] |
- |
Freezing period |
Dec-Apr |
| Mixing type |
Dimictic |
Annual fish catch [t yr-1] |
139 |
| Total N loading [t yr-1] |
- |
Total P loading [t yr-1] |
- |
| Population |
2,100 |
Population density of catchment area [person km-2] |
14.4 |
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 [%] |
99.3 |
Agricultural land [%] |
- |
Others [%] |
0.7 |
| Siltation |
- |
Toxic Contamination |
- |
| Eutrophication |
- |
Acidification |
- |
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