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  4. 20-10-2017

G4 Bridge at Rivernook

20 October 2017

Overview Notes Depth Profile Top-Bottom Documents 1 Chart
Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #11523
Date and Time Friday 20th October 2017 09:20am
Approved Approved

Notes

Film visible on water surface

Flow full of eddies & whirlpools also visible distinct  short backflow going upstream

Flats waterlogged but no visible water. Flats upstream mill between G5&G4 still underwater. Cape pond weed prolific on all flats around G5. Huge no. water fowl in these areas 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 15.00 0.10 7.46 72.4 0.28
Previous 8.7 0.2 7.3 63.3 0.3
Median 17.3 0.40 6.98 67.60 0.8
0.5m 15.00 0.10 7.43 74.0 0.28
Previous 10.3 0.2 8.5 76.2 0.4
Median 17.3 0.40 6.43 67.60 0.8
1.0m 15.10 0.10 7.45 74.1 0.28
Previous 8.7 0.2 7.4 63.5 0.3
Median 17.4 0.40 6.90 67.50 0.9
1.5m 15.10 0.10 7.23 72.7 0.28
Previous 10.3 0.2 8.4 74.8 0.4
Median 17.4 0.40 6.31 67.50 0.9
2.0m 15.10 0.10 7.34 73.5 0.28
Previous 8.7 0.2 7.4 63.4 0.3
Median 18.3 1.00 6.78 63.40 35.3
2.5m 15.10 0.10 7.47 74.4 0.28
Previous 10.3 0.2 8.2 74.1 0.4
Median 18.3 1.00 5.02 61.70 35.3
3.0m 15.10 0.10 7.23 72.8 0.28
Previous 8.7 0.2 7.4 63.7 0.3
Median 18.3 27.00 3.68 46.50 42.8
3.5m 15.10 0.10 7.37 73.2 0.28
Previous 10.3 0.2 8.4 75.0 0.4
Median 18.3 27.00 3.59 45.80 42.8
4.0m 15.10 0.10 7.45 74.2 0.28 probe drifting
Previous 8.8 0.2 7.4 63.8 0.3
Median 16.6 27.30 3.42 39.50 42.4
4.5m 15.10 0.10 7.46 74.0 0.28 "
Previous 10.3 0.2 8.4 75.0 0.4
Median 18.1 27.80 3.42 39.50 43.1
4.8m 15.10 0.10 7.50 74.6 0.28 "
Previous 10.1 0.2 8.6 76.3 0.4
Median 18.1 27.80 3.17 39.40 43.1

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 21 6.8
Previous 0.1 70 6.7
Median 0.1 9 6.4
Bottom 4.8
Previous 5.7
Median 5.2

Other details

Max depth 4.90
Previous 5.83
Median 5.25
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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