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  4. 11-10-2013

G2 Old Coach Road Bridge Princetown

11 October 2013

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #8525
Date and Time Friday 11th October 2013 11:20am
Approved Approved

Notes

  • AHD 0.60
  • Algae forming in wetlands (Shell duck with 3 ducklings)
    • D.O. about 8.27mg/l to 8.40 (Very strong flow)
  • Flats around G5 still covered with water where Cape Pond Weed is flowering.
  • Flats around G4 have nearly drained but are still waterlogged

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 13.60 0.50 9.05 87.2 0.98 Strong west wind
Previous 13.1 0.2 8.5 81.1 0.4
Median 16.8 1.90 7.51 76.90 3.6
0.5m 13.30 0.60 8.93 85.5 1.16 E.C. erratic
Previous 12.8 0.2 7.5 70.7 0.4
Median 17.3 2.10 7.51 76.90 4.0
1.0m 13.30 0.60 8.89 85.0 1.20 "
Previous 12.9 0.2 8.3 78.7 0.3
Median 17.3 7.40 7.34 78.00 12.6
1.5m 13.20 1.70 8.87 84.9 3.21 "
Previous 12.7 0.2 7.4 69.8 0.4
Median 17.4 7.70 7.34 78.00 12.8
2.0m 13.50 6.30 8.70 86.8 10.63 probe drifting upstream
Previous 12.9 0.2 8.3 78.3 0.3
Median 16.7 27.50 6.29 70.80 42.7
2.5m 14.00 16.40 8.51 90.9 26.50 "
Previous 12.7 0.2 7.3 69.0 0.4
Median 17.0 27.50 6.29 70.80 42.7
3.0m 14.30 25.50 8.21 94.0 40.01 Probe drifting downstream
Previous 12.9 0.2 8.2 78.4 0.4
Median 16.9 31.10 4.15 50.90 47.6
3.5m 14.30 26.60 8.22 94.6 41.50
Previous 12.7 0.2 7.4 69.7 0.3
Median 16.9 31.20 4.15 50.90 47.8
3.8m 14.40 27.10 8.25 95.2 42.12
Previous 13.6 0.2 6.7 64.9 0.3
Median 16.9 31.20 4.05 48.80 47.8

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 15 6.5
Previous 0.1 27 6.5
Median 0.1 10 6.8
Bottom
Previous 3.6 6 6.8
Median 2.5 10 7.1

Other details

Max depth 3.94
Previous 4.20
Median 4.00
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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