Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #11864
Date and Time Tuesday 6th March 2018 12:20pm
Approved Approved

Notes

S /E wind swirling around -small surface waves. Flow may be wind driven as well as slow

Algae forming on streamside veg. River smells very bad between G4 & township

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 18.00 0.30 4.48 47.6 0.62 Wind SE 4-5. small waves D/S
Previous 18.1 0.3 5.9 62.5 0.7
Median 18.1 0.20 6.47 67.20 0.4
0.5m 18.10 0.30 4.44 47.0 0.63
Previous 23.9 0.6 4.7 55.9 1.1
Median 18.3 0.20 6.98 68.30 0.4
1.0m 18.00 0.30 4.42 46.7 0.63
Previous 18.1 0.4 5.8 61.8 0.7
Median 18.1 0.20 6.46 67.10 0.4
1.5m 18.00 0.30 4.37 46.3 0.62
Previous 23.9 0.6 4.6 55.2 1.1
Median 18.3 0.20 6.74 67.50 0.4
2.0m 18.00 0.30 4.31 45.6 0.62
Previous 19.9 17.5 0.9 11.6 28.5
Median 18.6 0.50 6.57 63.40 0.9
2.5m 18.00 0.30 4.32 45.8 0.64 D.O slightly erratic
Previous 21.1 25.6 3.2 42.0 40.1
Median 18.6 0.50 6.68 65.60 0.9
3.0m 19.30 12.30 0.04 0.4 20.22 E.C. very erratic
Previous 20.0 27.4 0.6 8.0 42.7
Median 18.1 26.00 3.18 37.20 41.8
3.5m 19.70 22.30 0.03 0.4 35.33 E.C. erratic
Previous 19.6 28.9 0.5 7.0 44.7
Median 18.1 26.00 3.28 39.60 41.8
4.0m 19.10 26.50 0.03 0.4 41.24 "
Previous 18.7 29.5 0.6 7.1 45.7
Median 18.1 27.00 3.42 39.50 41.8
4.5m 18.60 27.70 0.03 0.4 43.06
Previous 18.8 30.2 0.4 4.6 46.5
Median 17.0 26.90 3.42 39.50 41.7
5.0m 18.00 28.60 0.03 0.0 44.09
Previous 17.7 30.1 0.4 5.5 46.5
Median 17.3 27.80 3.08 37.70 43.1
5.5m 17.70 28.80 0.03 0.4 44.44
Previous 18.3 30.5 0.3 3.8 46.9
Median 17.3 27.80 3.26 38.30 43.1
5.8m 17.30 28.90 0.03 0.3 44.09
Previous 17.8 29.6 0.0 0.5 45.6
Median 16.3 26.90 3.26 38.30 41.9

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 6.7
Previous 0.1 3 7.0
Median 0.1 9 6.5
Bottom 5.8 9 6.8
Previous 5.7 2 7.0
Median 5.2 4 7.3

Other details

Max depth 5.94
Previous 5.76
Median 5.25
Flow estimate Slow

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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