Observation #9645 30-05-2015 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#9645
Date and Time	Saturday 30th May 2015 10:40am
Approved	Approved

Notes

Outflow reducing & channel width decreasing

Rough sea, small waves entering estuary

Large amount of sand build up in front of rocks & along channel

Sand & debris being carried to mouth by strong longshore drift from erosion occurring at east end of beach

Waves in all directions at east end of beach creating a sand projection out to sea at mid beach

Strong longshore drift to mouth crossing over outflow & incoming waves

Strong north wind blowing sand into channel and area around rocks

Low track underwater with waves from north wind increasing depth

Large mounds of dead sea grass along beach at south side of estuary

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 O C C C C O O P C C O O O C C C C C C O O O P C O O O P O O O O
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 N N N N Y Y Y N N Y Y Y N N N N N N Y Y Y Y N Y Y Y N Y Y Y Y
Flow Direction	Out
Previous	I I O I O O O O O O I O O O O O O O O O O O O O O O O O N N N N O O I N N O I O N N N N N N O O O I N O O O N O O O O

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

Physical Condition

	Current	Mode
Wind Direction	North
Beaufort Scale	Strong breeze
Sea State	Very Rough

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.12m	1.06m
Time (hh:mm)	10:40	12:40
Tidal influence	Yes
Tidal Range	Time	Height
High	11:50	0.970
Low	04:16	0.560

Observation Documents

Link	Date	File name	Description
Download	30-05-2015 10:40	Photopoint	Gp1_1
Download	30-05-2015 10:40	Photopoint	Gp1_2
Download	30-05-2015 10:40	Photopoint	Gp1_3
Download	30-05-2015 10:40	Photopoint	Gp1_4
Download	30-05-2015 10:40	Photopoint	Gp1_5