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  4. 30-06-2012

Po2 Site two (Mouth of Powlett Road Bridge)

30 June 2012

Overview Notes Depth Profile Top-Bottom Documents 0 Chart
Observation details

Overview

Estuary Powlett River Estuary
Site Site two (Mouth of Powlett Road Bridge)
Observation ID #4982
Date and Time Saturday 30th June 2012 07:56am
Approved Approved

Notes

Fast flowing water in both directions created very turbulent water at about 1.5 metres and so the readings for salinity were very unstable. Measurements were taken on the high tide so the incoming tide was meeting the fast flowing fresh water caused by resent high rainfall.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 8.60 1.90 9.16 81.6 3.30
Previous 12.1 0.4 7.0 65.0 0.8
Median 15.0 6.30 7.00 80.00 11.0
0.5m 8.80 2.50 9.10 79.8 3.20
Previous 17.9 30.6 6.4 80.0 47.2
Median 17.3 9.70 7.00 80.70 16.5
1.0m 8.80 4.10 8.98 77.7 7.50
Previous 12.1 0.4 7.0 65.0 0.8
Median 15.0 27.90 6.91 73.20 42.0
1.5m 10.50 20.00 9.90 90.5 24.00
Previous 17.9 34.2 2.8 36.0 52.2
Median 17.6 32.00 6.91 75.40 48.8
2.0m 11.40 28.60 8.60 93.8 44.00
Previous 12.1 0.5 6.9 64.7 1.0
Median 15.2 32.40 6.87 77.50 49.5
2.5m 11.80 30.50 8.48 94.3 46.80
Previous 17.5 34.7 2.9 38.0 52.6
Median 17.3 34.00 6.87 83.10 51.6
3.0m 11.90 32.30 8.34 94.5 47.50
Previous 13.2 19.6 5.7 68.0 31.5
Median 15.5 33.90 6.08 75.80 51.6
3.5m 11.90 32.20 8.34 95.0 49.30
Previous 16.6 34.6 2.6 33.6 52.5
Median 16.6 34.40 6.31 78.60 52.2
4.0m 12.00 32.70 8.38 94.5 50.10
Previous 16.6 34.6 2.5 26.0 52.5
Median 15.6 34.40 4.50 54.40 52.3
4.5m 12.10 32.90 8.37 94.8 50.40
Previous 15.6 31.8 4.5 54.4 49.1
Median 15.6 34.40 7.20 84.00 52.3
4.6m 11.90 32.90 50.30
Previous 13.5 34.4 7.2 84.0 52.3
Median 13.5 34.40 7.20 84.00 52.3

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 40 7.5
Previous 0.1 30 7.5
Median 0.1 15 7.5
Bottom 4.6 10 8.0
Previous 3.5 10 7.5
Median 3.8 10 7.7

Other details

Max depth 4.60
Previous 3.50
Median 3.60
Flow estimate Fast

Observation Documents

No documents found for this observation

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
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