Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #13164
Date and Time Friday 21st June 2019 10:30am
Approved Approved

Notes

AHD 0.44 @ 11:30  Low tide & reducing flow from upstream with small waves entering at mouth  = no weights were used as probe was not drifting

Phos - 0.045 mg/l

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 9.10 0.60 9.02 78.3 1.18 SE wind 2 E.C. erratic
Previous 12.5 0.9 7.5 70.6 1.7
Median 17.1 1.80 6.77 70.40 3.4
0.5m 9.00 0.60 8.99 78.1 1.17 E.C. erratic
Previous 14.5 3.3 6.8 67.9 6.1
Median 17.4 1.90 6.77 70.40 3.4
1.0m 9.00 0.70 8.98 77.9 1.35 "
Previous 13.2 6.6 2.3 23.2 11.6
Median 17.9 4.70 6.39 69.10 8.2
1.5m 9.00 0.90 8.89 77.2 1.60 ''
Previous 16.7 27.8 5.8 70.0 43.1
Median 17.9 4.70 6.87 69.80 6.1
2.0m 8.90 1.10 8.50 74.6 2.14 ''
Previous 15.5 33.4 0.8 9.2 50.8
Median 17.0 20.00 5.17 59.30 32.0
2.5m 9.00 1.90 8.27 71.8 3.60 E.C. extremely erratic
Previous 16.7 33.8 2.9 37.1 51.4
Median 17.2 20.00 5.84 63.70 31.7
3.5m 12.40 12.40 5.26 56.4 36.65
Previous 15.9 34.2 0.3 4.3 51.9
Median 17.6 27.90 2.50 31.80 43.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 11 6.8
Previous 0.1 9 6.8
Median 0.1 9 6.9
Bottom 3.1
Previous 3.9 9 7.4
Median 4.4 9 7.2

Other details

Max depth 3.19
Previous 4.00
Median 4.47
Flow estimate Slow

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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