Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12655
Date and Time Friday 18th January 2019 12:25pm
Approved Approved

Notes

AHD G6 estimated to be about 0.69 @ 09:03 (board still covered with silt)

Only very slight pale discharge out around mouth flowing across an area of high sand build up both at entrance & along channel. Flow is restricted to 2 narrow channels through rocks.

Sand is high at east end & mid beach up to about 50m. from entrance where it drops down gradually. The higher mid beach area projects out to sea. The 2 separate bays recently formed remain.

WSW/sw swell impacting beach causing strong backwash & longshore drift at entrance, also some waves from swell curving around at entrance. Last high tide travelled high up on beach continuing into estuary

Mouth Observation

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

Physical Condition

Current Mode
Wind Direction South
Beaufort Scale Gentle breeze
Sea State Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 0.62m 0.61m
Time (hh:mm) 12:25 13:55
Tidal influence Yes
Tidal Range Time Height
High 01:13 0.930
Low 15:39 0.380

Observation Documents

Link Date File name Description

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20-01-2019 14:45 Gp1_20190118_1_212_032.JPG gp1_1

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20-01-2019 14:45 Gp1_20190118_2_252_033.JPG gp1_2

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20-01-2019 14:45 Gp1_20190118_3_292_034.JPG gp1_3

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20-01-2019 14:45 Gp1_20190118_4_332_035.JPG gp1_4

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20-01-2019 14:45 Gp1_20190118_5_372_036.JPG gp1_5
gp1_1
gp1_2
gp1_3
gp1_4
gp1_5
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