Observation details

Overview

Estuary Hopkins River Estuary
Site Site one (Hopkins River Bridge)
Observation ID #4323
Date and Time Saturday 11th December 2010 09:45am
Approved Approved

Notes

flow too fast to enable use of Van Doorn so no turbidity or pH readings
?accuracy of depth measurements as probe tending to float away from bridge
60mm rain in W'bool in last week, 75-100mm in central areas of Vic.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 19.00 1.00 6.76 73.3 2.03
Previous 17.7 3.0 8.0 85.7 5.5
Median 12.3 3.00 8.66 92.60 5.5
0.5m 19.00 1.00 6.62 71.9 2.04
Previous 14.8 2.4 8.2 82.8 3.7
Median 12.3 11.70 9.73 92.60 19.6
1.0m 19.00 1.10 6.62 71.9 2.08
Previous 16.3 27.0 7.2 84.7 40.0
Median 12.6 27.00 7.94 85.00 37.3
1.5m 19.00 1.10 6.62 71.9 2.06
Previous 14.2 30.4 8.0 93.3 37.3
Median 12.6 29.60 7.95 91.70 37.3
2.0m 19.00 1.10 6.63 72.1 2.08
Previous 15.6 33.1 7.5 92.5 50.4
Median 12.8 31.50 7.50 82.50 39.4
2.5m 19.00 1.10 6.66 72.3 2.07
Previous 14.1 49.8 5.8 75.5 39.4
Median 12.8 31.50 7.62 82.50 39.4
3.0m 19.00 1.10 6.63 72.0 2.08
Previous 13.1 31.1 0.0 0.6 47.7
Median 13.1 31.10 0.04 0.60 47.7
3.5m 19.00 1.10 6.57 71.1 2.15
Previous
Median
4.0m 18.90 1.10 6.58 70.9 2.18
Previous
Median

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1
Previous 0.1 15 7.5
Median 0.1 20 7.5
Bottom
Previous 2.8 10 8.0
Median 2.8 15 8.0

Other details

Max depth 4.20
Previous 2.90
Median 2.90
Flow estimate N/A

Observation Documents

No documents found for this observation

Preceding Observations

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