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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #5331
Date and Time Friday 25th March 2011 09:15am
Approved Approved

Notes

1.Out flow between rocks & cliff face, channel 3-4m wide, cascade over submerged rocks with a drop of about 1m.
2.Channel has moved left and along shoreline.
3.Sand build up against cliff uncovered
4. Increasing flow from recent rain is flushing channel Steep sides( to 1m.) are collapsing into flow
5.Sandbar in estuary is under water & water is up to the base of the dunes on eastside of channel & estuary
6. Last hi tide reached to near base of sand dunes on ocean beach. Longshore drift and wind are bringing more sand back into the channel upstream of rocks.
7. It was noted that a few days after the full moon large schools (2m wide by 1m deep) of small blue grey( 8cm) fish were swimming upstream

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 South
Beaufort Scale High wind, moderate gale, near gale
Sea State Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 0.76m 0.70m
Time (hh:mm) 09:15 10:36
Tidal influence Yes
Tidal Range Time Height
High 16:12 1.000
Low 08:48 0.050

Observation Documents

Link Date File name Description
25-03-2011 09:15 Photopoint Gp.1
25-03-2011 09:15 Photopoint Gp.2
25-03-2011 09:15 Photopoint Gp.3
25-03-2011 09:15 Photopoint Gp.4
25-03-2011 09:15 Photopoint Gp.5