Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #12071
Date and Time Friday 18th May 2018 10:50am
Approved Approved

Notes

AHD G2 rising & falling between 0.58   to   0.62  @  09:55

Flow indicated by probe movement was going both upstream & downstream. (result of  waves entering at mouth

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 12.50 2.60 8.02 76.3 4.83 Wind W 4
Previous 11.9 2.3 6.8 64.6 4.3
Median 17.9 1.80 6.92 71.30 3.5
0.5m 12.30 2.60 7.56 73.2 4.90 E.C. erratic
Previous 14.5 11.3 7.2 73.3 35.6
Median 17.9 1.80 6.92 71.30 3.5
1.0m 12.40 3.10 7.46 71.4 5.71 E.C. very erratic
Previous 12.1 4.3 5.2 52.2 8.2
Median 18.0 3.30 6.88 70.80 5.8
1.5m 13.20 20.20 6.72 74.3 28.62 " " "
Previous 16.9 31.3 7.0 86.0 48.0
Median 18.0 2.80 6.88 70.80 5.2
2.0m 14.70 25.30 6.89 78.1 39.80 " " " D.O. erratic
Previous 12.8 11.4 3.0 32.0 19.1
Median 17.6 23.10 5.94 69.00 36.4
2.5m 15.00 29.20 6.49 76.5 45.22 " " "
Previous 16.8 32.7 7.1 89.6 49.9
Median 17.6 23.10 5.94 69.00 36.4
3.0m 15.20 30.60 6.48 78.5 47.04 " " " Probe going upstream
Previous 13.7 28.2 4.0 47.0 42.1
Median 17.7 30.00 3.58 42.70 46.0
3.5m 15.20 31.20 6.58 79.7 47.66 " " "
Previous 16.9 33.0 7.1 89.8 50.3
Median 17.9 30.10 3.58 42.70 46.4
3.9m 15.30 31.30 6.33 76.6 47.94 " " "
Previous 17.3 33.4 6.1 78.1 50.8
Median 17.9 30.00 3.34 42.50 46.0

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 7.1
Previous 0.1 25 7.0
Median 0.1 12 6.9
Bottom 3.9 9 6.8
Previous 4.2 14 7.4
Median 4.2 14 7.2

Other details

Max depth 4.00
Previous 4.32
Median 4.30
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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