Observation details

Overview

Estuary Hopkins River Estuary
Site Site one (Hopkins River Bridge)
Observation ID #15018
Date and Time Saturday 17th September 2022 10:06am
Approved Approved

Notes

Bottom pH is <9. Med- Fast flowing out to sea.

Mouth photos attached here. 

 

Thanks Brad.  Very interesting to see quite a lot of tidal/ocean influence still pushing up the estuary, however this may disappear soon!  Great D.O. profile throughout.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 12.80 8.50 8.70 87.3 15.00
Previous 12.0 2.0 10.6 98.2 3.7
Median 15.9 11.00 9.85 104.50 18.6
0.5m 12.90 10.70 7.70 80.2 17.90
Previous 11.1 9.6 10.9 106.2 16.2
Median 15.9 11.00 9.77 104.50 18.6
1.0m 13.20 23.60 7.53 85.6 38.70
Previous 11.9 2.4 10.1 94.2 4.5
Median 15.7 21.20 8.60 98.40 33.7
1.5m 13.20 32.00 8.20 97.3 49.07
Previous 12.6 25.8 8.9 98.6 40.5
Median 15.7 21.20 8.26 98.40 33.7
2.0m 13.20 32.20 8.33 98.5 49.26
Previous 12.9 25.1 4.9 54.2 39.5
Median 15.2 28.00 6.94 86.00 43.5
2.5m 13.20 32.20 8.24 97.0 49.37
Previous 13.2 30.7 7.8 89.6 47.3
Median 15.2 28.00 6.94 86.00 43.5
3.0m 13.20 32.30 8.10 96.0 49.47
Previous 13.2 31.7 3.0 34.3 48.6
Median 15.3 31.50 6.15 77.30 48.2
3.5m 13.30 32.30 3.40 20.0 49.46
Previous 13.4 32.0 7.4 85.9 49.0
Median 15.3 31.30 6.15 77.30 47.9

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 10 8.3
Previous 0.1 13 8.6
Median 0.1 12 8.3
Bottom 3.7 9 8.6
Previous 3.8 9 8.0
Median 3.8 9 8.0

Other details

Max depth 3.80
Previous 3.90
Median 3.90
Flow estimate Medium

Observation Documents

Link Date File name Description

Download
17-09-2022 13:37 IMG_3946.JPG

Download
17-09-2022 13:37 IMG_3947.JPG

Download
17-09-2022 13:37 IMG_3948.JPG

Download
17-09-2022 13:37 IMG_3949.JPG

Preceding Observations

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