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H1 Site one (Hopkins River Bridge)

16 February 2024

Observation details

Overview

Estuary Hopkins River Estuary
Site Site one (Hopkins River Bridge)
Observation ID #16016
Date and Time Friday 16th February 2024 17:00pm
Approved Approved

Notes

Assisted by Fiona, and Emily, Harriette and Teddy.

 

Thanks everyone.  Interesting to see some anoxic water down deep, but quite likely this time of year and given how dry it has been.  

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 21.50 17.90 9.49 106.8 28.95 EC recorded as 83.0, ? misheard. No worries; I'm happy to use the 0.5m reading (J.Obst)
Previous 21.0 21.0 8.3 106.0 33.6
Median 17.3 13.00 9.24 99.60 21.6
0.5m 21.50 17.90 8.67 108.2 28.95
Previous 21.3 20.9 7.5 95.4 33.3
Median 17.2 12.40 9.24 99.10 20.6
1.0m 21.70 18.10 8.62 108.0 29.20
Previous 20.8 22.2 8.4 107.8 35.2
Median 16.8 27.60 8.36 97.20 41.3
1.5m 21.80 18.20 8.52 107.1 29.30
Previous 20.5 21.3 6.2 79.0 33.9
Median 16.7 27.60 8.26 97.10 41.3
2.0m 21.30 24.50 7.65 98.8 38.58
Previous 19.0 27.0 7.9 100.2 42.1
Median 16.0 31.50 7.62 89.40 48.4
2.5m 20.60 27.30 4.20 53.4 42.48
Previous 19.6 23.4 3.4 43.4 36.9
Median 16.0 31.50 7.62 89.40 48.4
3.0m 19.70 31.00 0.53 6.8 47.57
Previous 17.2 32.1 7.8 97.4 49.1
Median 16.0 32.10 7.19 84.60 49.1
3.5m 19.10 32.80 0.33 4.3 50.00
Previous 19.2 24.8 1.1 13.6 38.9
Median 15.9 32.10 7.03 84.10 49.0
3.8m 18.90 33.00 0.22 2.8 50.20
Previous 16.9 33.6 7.5 93.3 51.3
Median 15.9 32.20 7.19 84.60 49.1

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 7.0
Previous 0.1 9 8.3
Median 0.1 11 8.2
Bottom 3.8 9 6.9
Previous 3.7 9 7.8
Median 3.6 9 7.9

Other details

Max depth 3.90
Previous 3.80
Median 3.70
Flow estimate N/A

Observation Documents

Link Date File name Description

Download 		17-02-2024 16:06 img20240217_15430048.jpg

Preceding Observations

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