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  4. 02-04-2015

G2 Old Coach Road Bridge Princetown

2 April 2015

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #9476
Date and Time Thursday 2nd April 2015 09:15am
Approved Approved

Notes

  • Very strong cold S.E. wind(gusts to over 5) driving 10-20c. waves to G2.
  • White capped waves travelling up estuary & turning toward G2
  • Probe drifting under bridge from wind
  • All readings over wide range
  • Black mud/algae covering weight when lifted
  • AHD 1.48 @ 09:15
  • 1.46 @ 10:10

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 15.70 1.70 5.17 52.6 3.29
Previous 16.4 2.0 4.2 43.8 4.0
Median 16.4 1.80 7.26 75.10 3.5
0.5m 15.70 1.80 5.02 51.0 3.35
Previous 14.5 2.8 7.4 74.2 5.2
Median 16.4 1.80 7.26 75.10 3.5
1.0m 15.70 1.80 4.93 50.3 3.36 E.C. erratic
Previous 16.5 2.2 4.2 43.2 4.1
Median 16.5 3.00 7.03 75.20 5.5
1.5m 15.70 2.00 4.96 50.5 3.56 E.C. very erratic with wide range
Previous 14.5 3.0 7.5 75.0 5.5
Median 16.4 3.00 7.03 75.20 5.5
2.0m 16.00 3.60 4.14 40.3 8.01 "
Previous 17.3 10.3 4.1 40.6 16.4
Median 16.2 25.70 5.90 66.50 40.1
2.5m 16.50 8.10 3.33 35.2 14.92 "
Previous 17.8 19.1 5.9 69.6 30.4
Median 16.0 25.70 5.90 66.50 40.1
3.0m 17.90 22.70 4.00 48.0 37.85 "
Previous 18.1 30.4 1.8 22.3 46.6
Median 15.8 30.40 3.71 43.70 46.7
3.5m 18.10 29.90 2.37 30.2 45.74 "
Previous 18.3 30.7 3.2 41.2 47.1
Median 15.8 30.50 3.72 44.60 46.8
4.0m 18.00 31.40 1.73 22.2 48.04 "
Previous 17.6 32.6 0.2 2.0 49.8
Median 16.5 31.80 2.74 34.90 48.7
4.5m 17.70 32.60 0.64 8.2 49.74 "
Previous 17.6 32.7 1.8 23.5 49.9
Median 16.5 31.80 3.21 41.00 48.7
4.6m 17.60 32.70 0.28 3.5 49.81 "
Previous 17.5 32.9 1.7 21.8 50.2
Median 16.4 31.80 3.21 41.00 48.6

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 6.5
Previous 0.1 9 6.7
Median 0.1 9 7.0
Bottom
Previous 4.5 7
Median 4.2 7

Other details

Max depth 4.70
Previous 4.70
Median 4.10
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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