Observation #11248 31-05-2017 | GMC: Gellibrand River Estuary Mouth Observation Site

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	O O O O O O O O O O O O O O O O O O O O O O O O O O O O O P O P C C O O O O O O O C O C C C O O O O O C
Flow Present?	Yes
Previous	Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y N N Y Y Y N Y Y Y N N N N N Y Y Y Y Y N
Flow Direction	Out
Previous	O O O O I O O O I O O O O O O O O O O O O O O O I I O O O I O I N N O O I N O O O N N N N N O O O O O N

	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
Download	31-05-2017 10:00	Gp1_20170531_1_212_1148.JPG	gp1_1
Download	31-05-2017 10:00	Gp1_20170531_2_252_1149.JPG	gp1_2
Download	31-05-2017 10:00	Gp1_20170531_3_292_1150.JPG	gp1_3
Download	31-05-2017 10:00	Gp1_20170531_4_332_1151.JPG	gp1_4
Download	31-05-2017 10:00	Gp1_20170531_5_372_1152.JPG	gp1_5
Download	31-05-2017 10:00	GMC_31.5.17.JPG