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  4. 23-02-2011

B1 The Heads

23 February 2011

Overview Notes Depth Profile Top-Bottom Documents 2 Chart
Observation details

Overview

Estuary Barwon River Estuary
Site The Heads
Observation ID #5181
Date and Time Wednesday 23rd February 2011 09:45am
Approved Approved

Notes

Strong downstream current.
Overcast, mild, light wind.
Lead too short to reach 1.8m ie 10cm above bottom sample.
Require Van Dorn for top and bottom samples

Water Levels and Tides

Low tide time 10:29

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 18.00 32.20 8.07 84.9 46.00
Previous 20.0 32.5 8.1 89.3 46.4
Median 20.0 32.90 11.01 102.60 46.6
0.5m 17.85 32.06 8.07 84.4 45.80
Previous 13.5 32.6 11.3 109.8 46.6
Median 13.5 32.90 11.01 109.80 47.0
1.0m 17.80 32.06 8.07 84.2 45.80
Previous 19.7 33.2 8.3 91.6 47.5
Median 19.7 33.25 8.88 102.20 47.5
1.5m 17.75 32.06 8.02 83.7 45.80
Previous 12.1 32.8 10.9 102.2 46.9
Median 21.3 35.14 10.95 102.20 46.9

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 10 8.0
Previous 0.1 20 8.0
Median 0.1 20 8.0
Bottom
Previous 1.0 10 8.0
Median 1.0 10 8.0

Other details

Max depth 1.90
Previous 2.20
Median 2.60
Flow estimate N/A
Low tide time 10:29am

Observation Documents

Link Date File name Description

Download 		24-02-2011 09:13 Photopoint B1.20110223.1.Southeast

Download 		24-02-2011 09:13 Photopoint B1.20110223.2.Northwest

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
B1.20110223.1.Southeast
B1.20110223.2.Northwest
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