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  4. 19-09-2015

G4 Bridge at Rivernook

19 September 2015

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

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #9847
Date and Time Saturday 19th September 2015 09:30am
Approved Approved

Notes

  • Water very dirty with large no. Pussy willow blossoms floating on surface
  • Flats around G4 (including upstream) have drained but are very waterlogged
  • Current causing much turbulence & swirling with Phragmities moving strongly in current

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 11.50 0.10 10.10 98.6 0.31 Weights used for all readings
Previous 10.0 0.1 8.6 75.5 0.3
Median 14.6 0.20 6.94 68.40 0.5
0.5m 11.50 0.10 10.59 96.9 0.31
Previous 8.4 0.1 9.1 78.0 0.3
Median 14.6 0.50 6.94 68.40 1.0
1.0m 11.50 0.10 10.85 98.8 0.31
Previous 10.0 0.1 8.8 77.0 0.3
Median 14.6 0.30 6.87 67.90 0.6
1.5m 11.50 0.10 10.66 98.6 0.31
Previous 8.4 0.1 9.1 77.1 0.3
Median 14.6 0.50 6.87 67.90 1.1
2.0m 11.50 0.10 10.70 98.4 0.31 D.O. slightly erratic
Previous 10.0 0.1 8.8 77.6 0.3
Median 15.7 0.40 5.75 61.30 0.8
2.5m 11.50 0.10 10.81 99.1 0.31 D.O. erratic
Previous 8.4 0.1 9.1 77.9 0.3
Median 16.1 22.10 5.75 61.30 35.0
3.0m 11.50 0.10 10.80 99.5 0.31
Previous 10.0 0.1 8.8 78.5 0.3
Median 16.7 24.80 2.70 33.10 38.9
3.5m 11.50 0.10 10.87 99.4 0.31
Previous 8.4 0.1 9.2 78.7 0.3
Median 17.0 27.00 2.70 33.10 40.1
4.0m 11.50 0.10 10.86 99.4 0.31
Previous 10.0 0.1 8.7 77.5 0.3
Median 16.8 25.30 2.29 28.70 39.6
4.5m 11.60 0.10 10.63 98.0 0.31 D.O. erratic
Previous 8.4 0.1 9.2 78.3 0.3
Median 17.0 27.10 2.29 28.70 42.1
5.0m 11.60 0.10 10.51 96.3 0.31 "
Previous 8.4 0.1 9.2 78.0 0.3
Median 16.8 27.10 1.82 22.00 42.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 24 6.3
Previous 0.1 12 6.5
Median 0.1 9 6.7
Bottom
Previous 5.4
Median 5.4

Other details

Max depth 5.14
Previous 4.97
Median 5.30
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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