Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #12403
Date and Time Friday 21st September 2018 09:40am
Approved Approved

Notes

Flow not as fast as G5 but many opposing strong currents creating whirlpools, large amount of vegetation floating in current

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 10.40 0.10 9.49 85.4 0.31 Very cold NW wind 4
Previous 11.8 0.2 8.0 74.4 3.3
Median 18.1 0.30 6.13 63.60 0.7
0.5m 10.40 0.10 9.35 83.7 0.31
Previous 14.1 0.3 6.8 66.2 0.5
Median 18.1 0.40 6.13 63.60 0.7
1.0m 10.40 0.10 9.28 83.5 0.31
Previous 11.8 0.2 8.0 73.9 3.3
Median 18.0 0.40 5.99 62.50 0.8
1.5m 10.40 0.10 9.45 84.5 0.31
Previous 14.1 0.3 6.7 65.3 0.5
Median 18.1 0.40 5.99 62.50 0.8
2.0m 10.40 0.10 9.34 82.6 0.31 Flow going upstream
Previous 11.8 0.2 8.2 75.5 3.3
Median 18.1 0.50 4.32 48.70 3.3
2.5m 10.40 0.10 9.49 84.8 0.31 Probe drifting upstream
Previous 14.1 0.3 6.8 66.3 0.5
Median 18.3 17.50 4.32 48.70 28.5
3.0m 10.40 0.10 9.46 84.5 0.31 Probe drifting downstream
Previous 11.8 0.2 8.1 74.9 3.2
Median 18.1 22.30 1.95 24.80 35.3
3.5m 10.40 0.10 9.46 84.8 0.31
Previous 14.1 0.3 6.9 66.6 0.5
Median 18.3 26.00 1.95 24.80 40.6
4.0m 10.40 0.10 9.49 84.9 0.31
Previous 11.8 0.2 8.0 73.7 3.2
Median 18.1 26.20 1.92 24.40 40.9
4.5m 10.40 0.10 9.51 85.1 0.31
Previous 14.1 0.3 6.7 64.8 0.5
Median 18.2 27.70 1.92 24.40 43.1
5.0m 10.40 0.10 9.51 85.1 0.31
Previous 18.0 31.8 1.9 24.4 47.3
Median 18.2 27.70 0.55 7.10 43.1

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 14 6.9
Previous 0.1 9 6.5
Median 0.1 9 6.7
Bottom 5.0 14 6.9
Previous 5.0 9 6.4
Median 5.1 9 7.0

Other details

Max depth 5.05
Previous 5.15
Median 5.23
Flow estimate Medium

Observation Documents

Link Date File name Description

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
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