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  4. 18-08-2012

G2 Old Coach Road Bridge Princetown

18 August 2012

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #7602
Date and Time Saturday 18th August 2012 11:28am
Approved Approved

Notes

1. AHD G2 0.84 at 11:25
G6 2.59 at 07:30
2.Small waves reaching G2 from mouth but probe drifting downstream indicating that out flow is stronger
3. Rainfall over night =10ml

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 9.80 0.20 9.44 83.2 0.37
Previous 9.6 0.6 9.2 80.7 1.3
Median 14.5 1.30 7.82 79.10 2.2
0.5m 9.60 0.20 9.36 82.3 0.38
Previous 9.7 0.2 8.9 78.1 0.4
Median 14.5 1.30 7.65 78.80 2.2
1.0m 9.50 0.20 9.36 82.1 0.41
Previous 9.6 0.7 9.1 80.4 1.4
Median 14.9 4.30 7.59 80.40 8.1
1.5m 9.50 0.20 9.29 81.3 0.43
Previous 9.6 0.2 8.7 76.0 0.4
Median 14.9 4.30 7.56 79.30 8.1
2.0m 9.50 0.50 9.23 81.0 0.98 meter displays 'RANGE' readings very erratic
Previous 9.7 2.2 8.1 71.4 3.5
Median 15.5 25.90 6.39 72.80 40.0
2.5m 9.50 0.50 9.10 80.1 0.52
Previous 9.6 0.2 8.7 76.5 0.4
Median 15.5 25.90 6.28 72.80 40.0
3.0m 9.50 0.50 8.78 77.2 1.28
Previous 11.2 22.5 7.9 82.9 35.7
Median 15.8 29.60 4.71 57.90 45.6
3.5m 9.50 0.80 8.59 75.1 1.48
Previous 9.6 0.2 8.7 76.3 0.4
Median 15.8 29.60 4.64 55.80 45.6
4.0m 9.60 1.30 8.35 73.6 2.43
Previous 11.5 24.2 7.9 84.4 37.7
Median 16.7 30.20 4.03 49.30 46.4
4.2m 9.60 1.30 8.19 72.4 2.85
Previous 9.6 0.2 8.7 76.0 0.4
Median 17.0 30.20 4.03 49.30 46.4

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 30 8.0
Previous 0.1 30 7.0
Median 0.1 20 6.7
Bottom 2.5 30 8.0
Previous 3.0 30 6.8
Median 2.5 30 6.8

Other details

Max depth 4.30
Previous 4.50
Median 3.95
Flow estimate Medium

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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