Data Summary: Lake Rotorua
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| Site Name |
OCE-03 |
Photo : G. R. Fish |
| Lake Name |
Lake Rotorua |
| State |
South Auckland |
| Country |
New Zealand |
| Latitude |
38:0S |
| Longitude |
176:1E |
| Altitude [m] |
280 |
| Surface area [m2] |
79,780,000 |
Volume [m3] |
870,000,000 |
| Maximum depth [m] |
44.8 |
Mean depth [m] |
11 |
| Water level control |
Regulated |
Normal range of annual water level fluctuation [m] |
0.7 |
| Length of shoreline [m] |
40,100 |
Residence time [yr] |
1.2 |
| Catchment area [m2] |
402,260,000 |
Hours of bright Sunshine [hr yr-1] |
2,151 |
| Solar radiation [MJ m-2 day-1] |
15.3 |
Freezing period |
None |
| Mixing type |
Polymictic |
Annual fish catch [t yr-1] |
- |
| Total N loading [t yr-1] |
835 |
Total P loading [t yr-1] |
102.8 |
| Population |
66,000 |
Population density of catchment area [person km-2] |
164.1 |
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 [%] |
32.5 |
Agricultural land [%] |
43.9 |
Others [%] |
23.6 |
| Siltation |
Not Serious |
Toxic Contamination |
Not Serious |
| Eutrophication |
Serious |
Acidification |
- |
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