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H2 Site two (Riverboat Cruise Pontoon)

6 September 2026

Observation details

Overview

Estuary Hopkins River Estuary
Site Site two (Riverboat Cruise Pontoon)
Observation ID #17710
Date and Time Sunday 6th September 2026 13:10pm
Approved Approved

Notes

Great results guys; very fresh and highly oxygenated top layer, while a strong salt wedge persists in the bottom layer.  Thanks J.Obst.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 14.20 3.70 9.25 91.4 6.55
Previous 13.3 1.9 8.8 83.1 3.6
Median 17.5 12.60 9.29 103.50 20.5
0.5m 14.20 3.60 9.24 91.4 6.50
Previous 10.6 2.1 8.9 79.4 3.9
Median 17.5 12.60 9.29 103.50 20.5
1.0m 14.00 4.30 9.20 91.1 7.71
Previous 13.5 26.4 6.2 69.0 41.2
Median 16.2 20.00 8.42 96.50 31.9
1.5m 13.50 8.50 8.31 83.1 14.65
Previous 13.5 23.9 4.8 52.1 37.9
Median 16.2 20.00 8.42 96.50 31.9
2.0m 13.80 14.10 5.93 62.3 23.55
Previous 13.8 31.0 6.0 67.7 47.6
Median 15.9 26.80 7.53 90.20 41.8
2.5m 13.90 28.90 4.30 49.1 44.74
Previous 13.7 29.8 3.2 35.6 46.0
Median 15.9 26.40 7.53 90.20 41.5
3.0m 13.90 30.00 4.53 52.4 46.25
Previous 14.7 28.3 5.4 62.7 43.8
Median 15.9 27.30 6.89 82.60 42.2
3.3m 13.90 30.40 4.60 53.3 46.77
Previous 15.4 17.2 5.7 62.8 27.3
Median 16.0 27.30 6.93 82.70 42.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 12 8.3
Previous 0.1 11 7.8
Median 0.1 9 8.2
Bottom 3.2 11 8.0
Previous 2.9 9 7.7
Median 3.1 10 8.1

Other details

Max depth 3.40
Previous 3.00
Median 3.30
Flow estimate N/A

Observation Documents

Link Date File name Description
Download 06-09-2026 15:10 img20260906_14512429.pdf

Preceding Observations

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