Observation #12578 06-12-2018 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#12578
Date and Time	Thursday 6th December 2018 07:20am
Approved	Approved

Notes

Strong dark discharge through narrow channel cascading down to lower level through rocks & out over a wide shallow area around entrance travelling to east after a recent release after last hi tide.(High seas & gale force winds on 03-12-18 caused a high sand build up that closed the mouth). Tide mark on beach indicated extent of last hi tide. Sheer 10-50 cm sides to channel gradually collapsing into fast out flow. Waves from SW swell impacting mid beach & E end. Slight longshore drift across entrance.

Mouth Observation

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

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

Physical Condition

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

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.15m	1.13m
Time (hh:mm)	07:20	09:15
Tidal influence	No
Tidal Range	Time	Height
High	01:07	1.020
Low	08:23	0.550

Observation Documents

Link	Date	File name	Description
Download	08-12-2018 16:40	Gp1_20181206_1_212_033.JPG	gp1_1
Download	08-12-2018 16:40	Gp1_20181206_2_252_034.JPG	gp1_2
Download	08-12-2018 16:40	Gp1_20181206_3_292_035.JPG	gp1_3
Download	08-12-2018 16:40	Gp1_20181206_4_332_036.JPG	gp1_4
Download	08-12-2018 16:40	Gp1_20181206_5_372_037.JPG	gp1_5