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B1 The Heads

20 May 2026

Observation details

Overview

Estuary Barwon River Estuary
Site The Heads
Observation ID #17579
Date and Time Wednesday 20th May 2026 09:25am
Approved Approved

Notes

We were surprised Willy Weather indicated low tide was at 07.15. Two hours later the  outward current was still very strong. 

Water Levels and Tides

Low tide time 07:15

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 14.40 37.30 9.80 94.5 53.30
Previous 16.7 38.6 9.9 101.0 55.2
Median 15.6 37.20 9.46 93.60 53.2
0.5m 14.40 37.30 9.74 94.1 53.30
Previous 17.0 38.4 8.9 91.1 54.9
Median 15.6 37.20 9.42 93.50 53.2
1.0m 14.40 37.30 9.72 93.9 53.30
Previous 16.6 38.6 9.8 99.4 55.2
Median 15.7 37.40 9.43 93.70 53.4
1.5m 14.40 37.30 9.71 93.9 53.30
Previous 17.0 38.4 8.9 91.0 54.9
Median 15.7 37.40 9.36 93.60 53.4
1.7m 14.40 37.30 9.70 93.8 53.30
Previous 18.5 61.8 54.6 8.4 88.3
Median 15.7 37.40 9.43 93.70 53.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 0 7.5
Previous 0.1 9 7.5
Median 0.1 9 7.9
Bottom 1.7 0 7.9
Previous 2.3 9 7.4
Median 2.5 9 8.0

Other details

Max depth 1.80
Previous 2.40
Median 2.60
Flow estimate Fast
Low tide time 07:15am

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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