Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #11827
Date and Time Wednesday 21st February 2018 11:20am
Approved Approved

Notes

AHD G6 1.30 @ 11:10  G2 1.33  @  11:30

Very humid conditions Air temp 24C.

Water up to base of fishing platform deck

 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 21.20 1.60 7.79 88.5 3.03 NE wind 3 waves D.S. to G2
Previous 19.0 2.8 7.9 86.0 5.2
Median 17.3 2.20 6.92 72.50 4.2
0.5m 21.00 1.60 7.77 88.0 3.05 D.O. & E.C. erratic
Previous 22.6 1.5 6.1 71.3 2.8
Median 17.2 2.10 6.91 71.90 3.9
1.0m 21.00 1.80 8.54 97.1 3.26 D.O. erratic
Previous 18.7 2.8 7.9 85.6 5.2
Median 18.0 3.80 6.97 73.40 6.7
1.5m 21.10 2.10 8.57 97.4 3.87 "
Previous 23.7 2.2 5.9 70.0 4.1
Median 18.0 3.80 6.88 71.00 6.7
2.0m 20.70 2.20 8.21 92.8 4.05 "
Previous 20.8 16.5 5.7 70.0 26.9
Median 17.1 24.60 5.94 69.00 38.5
2.5m 20.40 11.40 5.79 63.4 19.20 -
Previous 22.0 21.6 6.7 86.6 34.4
Median 16.6 24.60 5.94 65.60 38.5
3.0m 20.50 25.30 2.17 27.9 39.41 D.O. erratic
Previous 20.0 31.7 2.2 29.1 48.7
Median 17.2 30.30 3.27 40.00 46.5
3.5m 19.90 30.00 0.64 8.3 45.99 "
Previous 19.6 31.1 3.6 47.1 47.7
Median 17.2 30.30 3.38 41.50 46.5
4.0m 19.10 31.80 0.05 0.7 48.28
Previous 18.7 33.6 0.6 8.4 51.1
Median 17.9 30.90 0.33 3.80 47.4
4.5m 18.40 32.30 0.04 0.5 49.33
Previous 18.3 32.5 0.1 0.6 49.6
Median 17.9 30.90 0.33 3.80 47.4
4.7m 18.40 32.30 0.04 0.5 49.23
Previous 18.2 32.6 0.1 0.8 49.7
Median 17.9 30.90 0.33 3.80 47.4

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 6.9
Previous 0.1 3 7.3
Median 0.1 9 6.8
Bottom 4.7 25 7.0
Previous 4.7 4 7.2
Median 4.2 14 7.2

Other details

Max depth 4.80
Previous 4.80
Median 4.30
Flow estimate Pool

Observation Documents

Link Date File name Description

Preceding Observations

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