Data Summary: Hamana-ko (Lake Hamana)
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| Site Name |
ASI-44 |
Photo : A. Kurata |
| Lake Name |
Hamana-ko (Lake Hamana) |
| State |
Shizuoka Prefecture |
| Country |
Japan |
| Latitude |
34:5N |
| Longitude |
137:4E |
| Altitude [m] |
0 |
| Surface area [m2] |
69000000 |
Volume [m3] |
330000000 |
| Maximum depth [m] |
15.8 |
Mean depth [m] |
5 |
| Water level control |
Unregulated |
Normal range of annual water level fluctuation [m] |
0 |
| Length of shoreline [m] |
92000 |
Residence time [yr] |
7.8 |
| Catchment area [m2] |
630000000 |
Hours of bright Sunshine [hr yr-1] |
2347 |
| Solar radiation [MJ m-2 day-1] |
- |
Freezing period |
None |
| Mixing type |
Monomictic |
Annual fish catch [t yr-1] |
3758 |
| Total N loading [t yr-1] |
1934.5 |
Total P loading [t yr-1] |
259.2 |
| Population |
738168 |
Population density of catchment area [person km-2] |
1180 |
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 [%] |
36.6 |
Agricultural land [%] |
32.9 |
Others [%] |
30.5 |
| Siltation |
Not Serious |
Toxic Contamination |
None |
| Eutrophication |
Serious |
Acidification |
None |
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