Observation #13336 20-09-2019 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#13336
Date and Time	Friday 20th September 2019 12:48pm
Approved	Approved

Notes

AHD G6 about 2.20 G2 about 0.28 AHD boards covered with silt & debris = estimate only

Dark discharge out around mouth, along foreshore turning out to sea at eastern end of beach. Moderate SW swell impacting east end of beach & longshore drift across entrance -sand has built up higher at mid beach.. Low tide has exposed sand bar in lagoon also decaying vegetation scum covering sea grass along edge of low track. North wind is driving waves into SE corner of lagoon.

Continuing erosion occurring on cliff face

Mouth Observation

Mouth state	Open
Previous	O O O 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
Flow Present?	Yes
Previous	Y Y Y 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
Flow Direction	Out
Previous	O O O 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

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

Physical Condition

	Current	Mode
Wind Direction	North-West
Beaufort Scale	Fresh breeze
Sea State	Moderate

Water Levels and Tides

Water Level	Start	Finish
Height (m)	0.28m
Time (hh:mm)	12:48	12:55
Tidal influence	Yes
Tidal Range	Time	Height
High	14:12	0.880
Low	08:57	0.500

Observation Documents

Link	Date	File name	Description
Download	21-09-2019 14:15	Gp1_20190920_1_212_0487.JPG	gp1_1
Download	21-09-2019 14:15	Gp1_20190920_2_252_0488.JPG	gp1_2
Download	21-09-2019 14:15	Gp1_20190920_3_292_0489.JPG	gp1_3
Download	21-09-2019 14:15	Gp1_20190920_4_332_0490.JPG	gp1_4
Download	21-09-2019 14:15	Gp1_20190920_5_372_0491.JPG	gp1_5