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  4. 19-09-2009

G6 Great Ocean Road Bridge at Lower Gellibrand

19 September 2009

Overview Notes Depth Profile Top-Bottom Documents 0 Chart
Observation details

Overview

Estuary Gellibrand River Estuary
Site Great Ocean Road Bridge at Lower Gellibrand
Observation ID #2501
Date and Time Saturday 19th September 2009 13:30pm
Approved Approved

Notes

1. AHD 2.90
2. 31 ml rain 17/18th Sept -water level has risen again. Flats from G6 to G5 are flooded. Also to halfway between G5 & G4.
3.large infestation of Aponogeton distachyon at G5.
4 NOP. 1.787 -0
SOP. 3.265 7859

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 12.00 0.20 8.21 76.3 probe lead drifting even though attached
Previous 11.0 0.1 9.2 82.8
Median 13.5 0.10 7.54 71.50
0.5m 11.90 0.10 8.19 76.2 to secured weighted rope -
Previous 10.8 0.1 6.4 58.3
Median 13.6 0.10 7.54 71.50
1.0m 11.90 0.10 8.22 76.8 therefore readings may not be accurate
Previous 10.9 0.1 9.2 84.0
Median 13.4 0.10 7.65 71.40
1.5m 11.90 0.10 8.35 77.4
Previous 10.8 0.1 6.4 57.7
Median 13.6 0.10 7.65 71.40
2.0m 11.90 0.10 8.32 77.1
Previous 10.9 0.1 9.3 84.0
Median 13.2 0.10 7.55 71.80
2.5m 11.90 0.10 8.28 76.9
Previous 10.8 0.1 6.4 57.9
Median 13.4 0.10 7.55 71.80
3.0m 11.90 0.10 8.27 76.9
Previous 10.9 0.1 9.3 84.7
Median 9.7 0.20 8.73 75.50
3.5m 11.90 0.10 8.31 77.1
Previous 10.4 0.2 8.0 71.8
Median 9.7 0.20 8.73 75.50
4.0m 11.90 0.10 8.23 76.1
Previous
Median

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 60
Previous 0.1 40
Median 0.1 20
Bottom 3.5 80
Previous 2.0 60
Median 2.5 30

Other details

Max depth 4.07
Previous 4.00
Median 2.40
Flow estimate Fast

Observation Documents

No documents found for this observation

Preceding Observations

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