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GMC Gellibrand River Estuary Mouth Observation Site

31 May 2017

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #11248
Date and Time Wednesday 31st May 2017 08:52am
Approved Approved

Notes

Natural opening occurred overnight. Very strong dark & dirty outflow through a very wide opening 30- 40m., waves entering from SW swell & very strong longshore drift  crossing over outflow. Very dynamic whirlpool in outflow around & east of rocks. Wave action has caused 'pulsing' at G2 & Lt1

East side of channel has 3 - 4m high sheer side at entrance which reduces to about 1m. on meeting the estuary. This channel entry from estuary is also extremely wide.

Sand is continually collapsing into out flow also from wave action at entrance

Last hi tide mark on beach indicate waves have been over the berm almost up to dunes

Low track has almost drained but extremely large amounts of dead veg. remained piled high over the start of the track. OCR clear of water between bridge & camp ground but water remains in deep holes east of that area. Camp ground still has water in south & west areas

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) 1.09m 0.86m
Time (hh:mm) 08:52 10:36
Tidal influence Yes
Tidal Range Time Height
High 15:32 1.120
Low 07:50 0.320

Observation Documents

Link Date File name Description
31-05-2017 10:00 Gp1_20170531_1_212_1148.JPG gp1_1
31-05-2017 10:00 Gp1_20170531_2_252_1149.JPG gp1_2
31-05-2017 10:00 Gp1_20170531_3_292_1150.JPG gp1_3
31-05-2017 10:00 Gp1_20170531_4_332_1151.JPG gp1_4
31-05-2017 10:00 Gp1_20170531_5_372_1152.JPG gp1_5
31-05-2017 10:00 GMC_31.5.17.JPG
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