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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #7842
Date and Time Friday 28th September 2012 09:30am
Approved Approved

Notes

1.Small amount of dark discharge only immediately around mouth at 09:55 but by 10:50 none could be seen & salt water was moving up estuary channel
2. Rough sea up to base of dunes (Ocean beach), impacting on sand cliffs mid beach, longshore drift then moving water toward mouth - waves in all directions
3.Sand has built up around rocks at mouth & channel width upstream is reducing
4.Waves constantly entering channet & estuary impacting on dunes (south side estuary) & strongly surging behind reeds on east side
5. Darter 1. seen perching above river near G2.

Mouth Observation

Mouth state Open
Previous
Flow Present? Yes
Previous
Flow Direction Out
Previous
Above Sea Above Estuary
Berm Height (m)
Berm Length (m)

Physical Condition

Current Mode
Wind Direction North
Beaufort Scale Fresh breeze
Sea State Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 0.81m 0.91m
Time (hh:mm) 09:30 10:50
Tidal influence Yes
Tidal Range Time Height
High 11:32 0.840
Low 05:08 0.470

Observation Documents

Link Date File name Description
28-09-2012 09:30 Photopoint Gp.1
28-09-2012 09:30 Photopoint Gp.2
28-09-2012 09:30 Photopoint Gp.3
28-09-2012 09:30 Photopoint Gp.4
28-09-2012 09:30 Photopoint Gp.5