Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12257
Date and Time Saturday 14th July 2018 09:46am
Approved Approved

Notes

AHD G6 2.86 @ 09:22

Dark discharge out around mouth but becoming paler as it progresses south. Large amount of sand visible in breakers directly south of entrance

Waves, some very high, are going in all directions along beach & 1st half of channel where some small waves are entering against a strong outflow & travelling down the east side of the channel. Because of low tide exposing large areas of sand the waves are unable to turn east but continue for a very short distance north where they disappear only to re emerge further north spreading wide as the sand bar is reached. Edge of sand on south side of estuary is about .60m above water level

Last hi tide has gone high up on beach & where a gas bladder of a fish was found in the swash line at east end. (possibly from Spiny Puffer fish)

Mouth Observation

Mouth state Open
Previous O O O O O O O O O O O O O O O O O O O O P C C C C C C C O O O O C C C C C C C C C O O O O O C O O O O O O O O O O
Flow Present? Yes
Previous Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y N N N N N N N N Y Y Y Y N N N N N N N N N Y Y Y Y Y N Y Y Y Y Y Y Y Y Y Y
Flow Direction Out
Previous O O O O O O O O O O O O O O O O O O O O N N N N N N N N O I O O N N N N N N N N N O O O O O N O I O O O I O O I O
Above Sea Above Estuary
Berm Height (m)
Berm Length (m)

Physical Condition

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

Water Levels and Tides

Water Level Start Finish
Height (m) 0.63m 0.88m
Time (hh:mm) 09:40 11:40
Tidal influence Yes
Tidal Range Time Height
High 13:47 1.290
Low 05:38 0.330

Observation Documents

Link Date File name Description

Download
15-07-2018 14:40 Gp1_20180714_1_212_028.JPG gp1_1

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15-07-2018 14:40 Gp1_20180714_2_252_029.JPG gp1_2

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15-07-2018 14:40 Gp1_20180714_3_292_030.JPG gp1_3

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15-07-2018 14:40 Gp1_20180714_4_332_031.JPG gp1_4

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15-07-2018 14:40 Gp1_20180714_5_372_032.JPG gp1_5
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