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H2 Site two (Riverboat Cruise Pontoon)

21 February 2025

CAUTION: This observation has not yet been reviewed by an EstuaryWatch coordinator.

Observation details

Overview

Estuary Hopkins River Estuary
Site Site two (Riverboat Cruise Pontoon)
Observation ID #16746
Date and Time Friday 21st February 2025 17:25pm
Approved Pending

Notes

DO meter needed a significant recalibration upwards. Suspect that it could have been an artifact of being in hot car or similar. Results appear higher than for all other sites, despite most other parameters being very close between sites. At Site H3, DO required calibration back down again.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 20.80 9.70 10.65 126.6 16.44 DO seems high, see notes below
Previous 24.3 9.8 8.5 106.4 16.8
Median 17.5 13.80 9.13 103.40 22.7
0.5m 20.80 9.70 11.03 130.0 16.45
Previous 22.3 12.6 8.3 103.0 21.1
Median 17.5 14.60 9.16 103.40 24.0
1.0m 20.80 9.70 11.10 130.6 16.46
Previous 24.0 9.9 8.4 104.7 16.8
Median 16.8 21.10 8.42 96.70 33.7
1.5m 20.70 9.70 11.20 131.7 16.45
Previous 22.3 12.7 8.3 103.6 21.1
Median 16.8 21.30 8.48 96.70 34.1
2.0m 20.70 9.70 11.21 132.0 16.45
Previous 23.7 10.0 7.9 97.8 16.9
Median 16.2 29.10 7.35 90.20 45.2
2.5m 20.70 9.70 11.21 131.8 16.46
Previous 21.5 16.5 7.0 87.0 27.1
Median 16.2 29.60 7.35 90.20 45.3
3.0m 20.60 9.70 11.08 130.0 16.47
Previous 23.6 10.0 7.4 91.8 17.0
Median 15.1 29.00 6.82 82.60 44.8
3.5m 20.10 9.70 10.46 120.9 16.51
Previous 20.6 20.8 5.0 62.9 32.3
Median 15.1 29.60 6.82 82.60 45.8
4.0m 19.50 9.70 9.81 112.1 16.53
Previous
Median

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 10 8.3
Previous 0.1 9 8.1
Median 0.1 9 8.2
Bottom 4.0 15 8.2
Previous 3.9 11 8.1
Median 3.1 11 8.0

Other details

Max depth 4.10
Previous 4.00
Median 3.20
Flow estimate N/A

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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