Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #11400
Date and Time Sunday 20th August 2017 13:05pm
Approved Approved

Notes

Monitoring was discontinued after 2.00m. because of extremely fast flow

AHD G2 80 NTU's          G6    80 NTU's  pH 7.0

Strong flow out from the mouth has continued throughout this rainfall event

Initial flooding of OOR occurred after very heavy local rainfall. Flow across the road was only from North (runoff)

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 9.40 0.10 7.96 69.6 0.30
Previous 8.7 0.2 6.9 59.5 0.5
Median 17.1 2.60 6.78 71.90 5.1
0.5m 9.30 0.10 7.89 69.8 0.30
Previous 8.6 2.0 9.7 84.1 3.8
Median 17.2 2.70 6.78 72.50 5.1
1.0m 9.30 0.10 7.93 69.0 0.35
Previous 8.7 0.2 7.2 61.7 0.5
Median 17.8 7.00 6.66 74.20 9.8
1.5m 9.30 0.10 7.94 69.3 0.36
Previous 8.7 3.3 9.3 81.1 5.8
Median 18.0 8.10 6.66 75.90 12.1
2.0m 9.30 0.10 7.90 69.0 0.36
Previous 8.7 0.2 7.3 62.8 0.5
Median 16.7 28.10 5.76 63.20 43.5

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 80 7.1
Previous 0.1 70 6.8
Median 0.1 10 6.8
Bottom 4.0
Previous 4.2
Median 4.1

Other details

Max depth 4.15
Previous 4.30
Median 4.17
Flow estimate Fast

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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