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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #11662
Date and Time Friday 15th December 2017 11:07am
Approved Approved

Notes

Very slight pale discharge going out to sea just east of entrance. Reducing flow despite observations being taken close to hi tide Only very narrow shallow channel flowing between last rock & cliff. Waves however are entering over wider area & going across  from east side of rocks to cliff. Beach very flat with sand build up extending nearly across the entrance. Recent swash lines indicate waves going far up on beach. Backwash areas at mid beach are being scoured out into shallow N/S depressions. A lot of sand visible in breakers in that area & also directly out from mouth. Only part of sand bar visible

Algae in shallow water beside low track. Some in various stages of decomposition. Large no. small bubbles in one area. Moths wings also in these areas. In the shallow water along side low track there are large no. small very active fish. 6 White headed Herons actively feeding in these areas

Red silt/algae over dark black slimy deposit noted in shallow water of estuary at start of low track

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-West
Beaufort Scale Gentle breeze
Sea State Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 0.62m 0.65m
Time (hh:mm) 11:07 13:05
Tidal influence Yes
Tidal Range Time Height
High 12:44 0.880
Low 17:11 0.350

Observation Documents

Link Date File name Description
16-12-2017 15:15 Gp1_20171215_1_212_9780.JPG gp1_1
16-12-2017 15:15 Gp1_20171215_2_252_9781.JPG gp1_2
16-12-2017 15:15 Gp1_20171215_3_292_9782.JPG gp1_3
16-12-2017 15:15 Gp1_20171215_4_332_9783.JPG gp1_4
16-12-2017 15:15 Gp1_20171215_5_372_9784.JPG gp1_5