Observation details


Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #13383
Date and Time Friday 18th October 2019 11:25am
Approved Approved


AHD G6 1.64  &  08:30

Some flow out but difficult to access Gp1 site because of near gale force gusty wind from NW. Wind coming in all directions depending on location - but mainly across lagoon to SE cr.  Very strong down channel driving large amount of sand into sea. Very high & low tides during 18-10-19 with SW/WSW swell of between 12-13 secs. duration impacting mainly @ east end of beach creating longshore drift to  mouth where backwash was rolling sand all along the edge of the channel

Only 1 photo because of conditions

Mouth Observation

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

Physical Condition

Current Mode
Wind Direction North
Beaufort Scale High wind, moderate gale, near gale
Sea State Very Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 0.48m 0.58m
Time (hh:mm) 11:25 12:35
Tidal influence Yes
Tidal Range Time Height
High 14:22 0.820
Low 09:35 0.520

Observation Documents

Link Date File name Description

07-11-2019 11:50 Ge_20191018_Longshore_drift_danger_2_608.JPG
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