Data Summary: Ho-Tay (West Lake)
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| Site Name |
ASI-62 |
Photo : A. Kurata |
| Lake Name |
Ho-Tay (West Lake) |
| State |
Hanoi City |
| Country |
Viet Nam |
| Latitude |
21:0N |
| Longitude |
105:5E |
| Altitude [m] |
6 |
| Surface area [m2] |
4,130,000 |
Volume [m3] |
8,000,000 |
| Maximum depth [m] |
3.5 |
Mean depth [m] |
1.7 |
| Water level control |
- |
Normal range of annual water level fluctuation [m] |
0.8 |
| Length of shoreline [m] |
1,400 |
Residence time [yr] |
- |
| Catchment area [m2] |
4,000,000 |
Hours of bright Sunshine [hr yr-1] |
1,640 |
| Solar radiation [MJ m-2 day-1] |
12.6 |
Freezing period |
None |
| Mixing type |
Polymictic |
Annual fish catch [t yr-1] |
332 |
| Total N loading [t yr-1] |
- |
Total P loading [t yr-1] |
- |
| Population |
20,000 |
Population density of catchment area [person km-2] |
5,000 |
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 [%] |
25 |
Agricultural land [%] |
25 |
Others [%] |
50 |
| Siltation |
Not Serious |
Toxic Contamination |
Not Serious |
| Eutrophication |
Serious |
Acidification |
- |
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