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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12002
Date and Time Friday 20th April 2018 07:45am
Approved Approved

Notes

Observations made at low tide. Flowing strongly out through start of channel about 6m. wide then widening around rocks & going wide over sand build up at actual entrance. Strong flow creating large waves , Sheer sides of channel collapsing into flow & a very large amount of sand being carried. Water cascading over top of rocks then creating large deep furrows where it is met by some incoming waves from WSW swell & strong longshore drift. Outflow waves up to .70 m close to shoreline area where action is scouring out large amount of sand.

Later in the day there was a pale discharge around mouth then going south about 30-50 m out to sea. Sand turbidity visible

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-East
Beaufort Scale Light Breeze
Sea State Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 1.71m 1.70m
Time (hh:mm) 07:45 09:43
Tidal influence Yes
Tidal Range Time Height
High 14:53 1.160
Low 07:35 0.230

Observation Documents

Link Date File name Description
28-04-2018 12:20 Gp1_20180420_1_212_0203.JPG gp1_1
28-04-2018 12:20 Gp1_20180420_2_252_0204.JPG gp1_2
28-04-2018 12:20 Gp1_20180420_3_292_0205.JPG gp1_3
28-04-2018 12:20 Gp1_20180420_4_332_0206.JPG gp1_4
28-04-2018 12:20 Gp1_20180420_5_372_0207.JPG gp1_5