Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #11709
Date and Time Sunday 7th January 2018 09:40am
Approved Approved

Notes

AHD G2  0.62 @  09:40                                                                                      G6   0.68  @13:15

Salt wedge at 2.50m from top @  G4    D.O. levels low below 2.50m    

no salt at G5 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 20.40 2.90 7.31 82.3 5.42
Previous 20.3 5.0 7.8 89.2 8.8
Median 16.8 2.20 6.70 71.00 4.2
0.5m 20.40 2.90 7.12 80.1 5.41
Previous 19.0 1.1 6.5 71.0 2.3
Median 16.8 2.20 6.70 71.00 4.2
1.0m 0.00 4.50 6.69 75.1 9.80
Previous 19.6 27.9 7.7 98.1 38.3
Median 18.0 5.40 6.66 70.80 9.3
1.5m 19.80 25.60 6.29 80.6 40.14
Previous 18.2 10.2 6.4 70.8 17.3
Median 18.0 5.40 6.66 70.80 9.3
2.0m 19.30 28.30 6.62 84.8 43.82
Previous 18.2 33.5 6.6 84.2 50.9
Median 16.6 26.20 5.76 64.30 40.7
2.5m 18.50 32.20 3.56 46.0 49.11
Previous 15.5 30.4 3.8 46.1 46.7
Median 16.6 26.20 5.76 64.30 40.7
3.0m 18.50 32.90 2.71 35.2 50.10
Previous 17.9 33.9 5.0 64.0 51.5
Median 17.2 30.30 3.38 40.00 46.5
3.5m 18.00 33.20 1.89 24.3 50.50
Previous 15.2 31.6 3.1 37.8 48.4
Median 16.7 30.10 3.27 38.70 46.4
4.0m 18.00 33.20 1.73 22.2 50.60
Previous 15.6 18.4 6.4 70.9 29.6
Median 17.2 30.10 3.38 40.00 46.4

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 7.0
Previous 0.1 11 7.0
Median 0.1 10 6.8
Bottom 4.1
Previous 3.6
Median 4.1

Other details

Max depth 4.02
Previous 3.72
Median 4.23
Flow estimate Pool

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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