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  4. 15-02-2023

B1 The Heads

15 February 2023

Overview Notes Depth Profile Top-Bottom Documents 1 Chart
Observation details

Overview

Estuary Barwon River Estuary
Site The Heads
Observation ID #15289
Date and Time Wednesday 15th February 2023 09:28am
Approved Approved

Notes

NB; There was some discrepancy between the pH on the meter and with Litmus paper: Top Depth 6.7, Litmus 8: Bottom Depth 6.6, Litmus 8.

Water Levels and Tides

Low tide time 13:00

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 19.00 37.70 8.60 93.4 53.90
Previous 19.4 37.8 9.0 100.4 54.0
Median 15.6 36.30 8.90 90.00 51.8
0.5m 19.00 37.70 8.57 93.1 53.80
Previous 20.5 38.2 8.8 99.1 54.6
Median 14.6 36.10 8.85 88.10 51.5
1.0m 19.00 37.70 8.53 92.6 53.90
Previous 19.4 37.8 9.0 100.0 54.0
Median 15.6 36.30 8.86 90.90 51.9
1.5m 19.00 37.70 8.51 92.5 53.80
Previous 20.5 38.2 8.8 98.8 54.5
Median 14.6 36.00 8.81 88.30 51.4
2.0m 19.10 37.70 8.49 92.3 53.80
Previous 19.3 37.8 8.9 99.5 54.0
Median 14.5 36.30 8.83 91.70 51.9
2.5m 19.10 37.70 8.48 92.2 53.80
Previous 20.5 38.2 8.8 98.2 54.5
Median 14.5 36.30 8.83 91.70 51.9
2.7m 19.10 37.70 8.48 92.2 53.80
Previous 17.8 40.5 8.7 91.7 57.8
Median 14.1 36.00 8.83 90.60 51.4

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 8 8.0
Previous 0.1 9 8.2
Median 0.1 9 7.7
Bottom 2.7 8 8.0
Previous 2.9 9 8.2
Median 2.6 9 7.8

Other details

Max depth 2.80
Previous 3.00
Median 2.70
Flow estimate Fast
Low tide time 13:00pm

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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