Observation #11111 15-04-2017 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#11111
Date and Time	Saturday 15th April 2017 08:26am
Approved	Approved

Notes

Discharge out south & to east (difficult to estimate because of large amount of foam), outflow reducing but entrance remains very wide. Some waves from long shore drift & SW swell are entering down channel into estuary where only a small area of sandbar is exposed. Sand is building up at east side of entrance.

An extremely wide expanse of sand has been exposed extending far north into the estuary well past level with the Tunnel entrance. The sand is high near the channel/estuary entrance but becomes lower & silt covered toward SE corner where a 'skin' has formed across surface of shallow water.

Low track has drained -sea grass visible under shallow water . Iridescent slick in some shallow areas.

Camp ground, OCR & 2 areas at flood markers OOR have water. The area at OOR has large no. very small fish in excavated area near blocked culverts. Flats draining upstream

Mouth Observation

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

	Above Sea	Above Estuary
Berm Height (m)
Berm Length (m)

Physical Condition

	Current	Mode
Wind Direction	North
Beaufort Scale	Light Breeze
Sea State	Moderate

Water Levels and Tides

Water Level	Start	Finish
Height (m)	0.65m	0.82m
Time (hh:mm)	08:26	13:22
Tidal influence	Yes
Tidal Range	Time	Height
High	14:35	1.130
Low	07:45	0.280

Observation Documents

Link	Date	File name	Description
Download	15-04-2017 09:50	Gp1_20170415_1_212_0617.JPG	gp1_1
Download	15-04-2017 09:50	Gp1_20170415_2_252_0618.JPG	gp1_2
Download	15-04-2017 09:50	Gp1_20170415_3_292_0619.JPG	gp1_3
Download	15-04-2017 09:50	Gp1_20170415_4_332_0620.JPG	gp1_4
Download	15-04-2017 09:50	Gp1_20170415_5_372_0621.JPG	gp1_5