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Observation details


Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #13453
Date and Time Friday 13th December 2019 12:14pm
Approved Pending


AHD G2 0.50    AHD G6  1.00 @  11:45

Outflow reducing - dark discharge only around entrance & south out to sea. Sand has built up in channel & at mouth. As a result of wave impact & recent short time swell times the beach has dramatically changed with very high /wide build up of sand projecting a long way out to sea from about 50m from entrance to east end.This build up has high front to sea & a large depression behind the front extending towards dunes. South west swell is impacting on start of projection & causing some longshore drift back to west across the mouth. The beach from the start of the projection to mouth is lower & has formed a bay

Mouth Observation

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

Physical Condition

Current Mode
Wind Direction North-West
Beaufort Scale Moderate breeze
Sea State Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 0.50m 0.48m
Time (hh:mm) 12:14 14:01
Tidal influence Yes
Tidal Range Time Height
High 12:04 0.640
Low 19:07 0.230

Observation Documents

Link Date File name Description

15-12-2019 07:50 Gp1_20191213_1_212_829.JPG gp1_1

15-12-2019 07:50 Gp1_20191213_2_252_830.JPG gp1_2

15-12-2019 07:50 Gp1_20191213_3_292_831.JPG gp1_3

15-12-2019 07:50 Gp1_20191213_4_332_832.JPG gp1_4

15-12-2019 07:50 Gp1_20191213_5_372_833.JPG gp1_5
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