Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #12761
Date and Time Tuesday 12th March 2019 12:50pm
Approved Approved

Notes

AHD G2 1.40 @ 12:45  1.39  @ 14:10

AHD G6 1.44 @ 10:51   1.39 @  14:25

SW wind 4 creating ripples across a slow flow.from upstream, but low wave surge observed coming upstream from mouth

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 17.70 1.70 4.43 46.9 3.16 E.C. erratic
Previous 20.6 1.6 5.9 66.3 3.0
Median 17.8 2.20 6.85 70.50 4.2
0.5m 17.70 1.80 4.21 44.8 3.44 "
Previous 19.5 2.8 6.7 74.2 5.2
Median 17.8 2.30 6.97 70.80 4.3
1.0m 17.70 2.40 3.12 33.3 4.54 E.C. very erratic
Previous 20.9 2.7 7.4 84.3 5.0
Median 17.9 5.80 7.00 69.10 11.1
1.5m 18.00 4.70 1.16 17.5 8.23 "
Previous 20.2 5.8 0.9 10.6 10.3
Median 17.9 6.20 7.00 69.10 11.4
2.0m 20.30 12.80 0.17 1.9 20.90 D.O. erratic
Previous 18.7 18.2 3.7 44.1 29.5
Median 17.3 24.70 5.95 64.20 39.0
2.5m 20.60 17.10 0.05 0.6 27.67
Previous 20.5 14.9 2.7 22.4 24.5
Median 17.3 25.30 6.32 66.90 39.6
3.0m 20.60 23.60 0.04 0.5 37.07
Previous 19.3 27.4 0.6 8.1 42.6
Median 17.6 28.60 4.16 51.30 44.3
3.5m 19.70 28.60 0.04 0.5 44.16
Previous 20.2 28.1 0.1 0.6 43.5
Median 17.6 29.30 4.29 55.00 45.3
4.0m 19.30 28.80 0.04 0.5 44.48
Previous 19.1 29.6 0.4 5.6 45.7
Median 17.9 30.00 1.98 25.30 46.1
4.5m 19.20 29.20 0.03 0.4 45.02 wind rain & hail
Previous 18.9 29.5 0.0 0.5 45.4
Median 17.8 30.00 1.98 25.30 46.1
4.8m 18.90 29.40 0.03 0.4 45.37 "
Previous 19.1 29.2 0.0 0.5 45.0
Median 17.8 30.50 2.13 26.20 46.9

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1
Previous 0.1 3 7.0
Median 0.1 10 6.9
Bottom 4.8
Previous 4.8 2 7.7
Median 4.1 9 7.1

Other details

Max depth 4.86
Previous 4.93
Median 4.21
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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