EstuaryWatch Data Portal
G2 Old Coach Road Bridge Princetown
8 December 2018
Observation details
Overview
| Estuary | Gellibrand River Estuary |
|---|---|
| Site | Old Coach Road Bridge Princetown |
| Observation ID | #12576 |
| Date and Time | Saturday 8th December 2018 09:50am |
| Approved | Approved |
Notes
AHD G2 0.56 @ 09:50 G6 0.98 @ 09:40
SE Wind bringing waves to G2 making flow estimate very difficult
After a short duration closure the mouth opened naturally on 06-12-18, 40C. heat on 07-12-18.
Low water level in estuary with sand bar partially exposed & drying algae draped over veg. at E side of estuary. Waves entering shallow over wide area / dense sea mist & air temp about 18C.
Depth Profiling
| Depth m | Temperature °C | Salinity ppt | D.O. mg/L | D.O. % sat | EC mS/cm | Notes | |
|---|---|---|---|---|---|---|---|
| 0.1m | 20.50 | 2.60 | 6.89 | 77.1 | 4.79 | SE wind 4 + stronger gusts | |
| Previous | 15.4 | 1.7 | 9.1 | 91.6 | 3.2 | ||
| Median | 17.8 | 1.80 | 6.97 | 71.20 | 3.5 | ||
| 0.5m | 20.40 | 2.70 | 6.69 | 75.2 | 5.02 | ||
| Previous | 16.6 | 3.8 | 7.2 | 76.4 | 7.0 | ||
| Median | 17.9 | 1.90 | 6.97 | 71.20 | 3.8 | ||
| 1.0m | 21.60 | 11.70 | 5.06 | 56.8 | 20.13 | D.O. very erratic | |
| Previous | 15.4 | 1.9 | 9.0 | 91.1 | 3.6 | ||
| Median | 17.9 | 3.60 | 6.55 | 69.90 | 6.6 | ||
| 1.5m | 20.10 | 18.20 | 5.23 | 64.0 | 29.35 | D.O. " " | |
| Previous | 16.4 | 23.8 | 7.0 | 80.2 | 27.4 | ||
| Median | 18.0 | 4.30 | 6.55 | 69.90 | 8.2 | ||
| 2.0m | 18.10 | 28.80 | 6.95 | 87.2 | 44.44 | D.O. erratic | |
| Previous | 15.5 | 31.8 | 8.3 | 101.0 | 48.6 | ||
| Median | 17.6 | 24.60 | 5.95 | 64.20 | 38.5 | ||
| 2.5m | 16.40 | 31.00 | 7.02 | 86.5 | 47.56 | ||
| Previous | 15.9 | 31.7 | 7.1 | 87.1 | 48.4 | ||
| Median | 17.6 | 24.60 | 5.95 | 64.20 | 38.5 | ||
| 3.0m | 16.20 | 31.10 | 6.68 | 82.2 | 47.66 | ||
| Previous | 15.5 | 33.5 | 8.3 | 102.1 | 51.1 | ||
| Median | 17.7 | 30.70 | 3.92 | 47.10 | 47.1 | ||
| 3.5m | 16.10 | 31.10 | 6.24 | 77.4 | 47.74 | ||
| Previous | 15.9 | 33.3 | 6.8 | 87.7 | 50.6 | ||
| Median | 17.9 | 30.70 | 3.92 | 47.10 | 47.1 | ||
| 3.9m | 16.10 | 31.10 | 6.35 | 77.7 | 47.79 | ||
| Previous | 15.8 | 28.6 | 6.8 | 82.0 | 44.3 | ||
| Median | 17.9 | 30.00 | 3.58 | 47.00 | 46.0 |
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