Observation #4261 25-08-2010 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#4261
Date and Time	Wednesday 25th August 2010 11:40am
Approved	Approved

Notes

1.Flow both in and out. NW wind bringing waves from estuary to mouth meeting waves from high seas. The ocean waves are reaching the base of the sand dunes on the ocean beach & up to 1/4 of the height of the western rock face at the point
2.Water is travelling back along beach back to mouth and around dunes on east side of the channel to the east side of the estuary.
High sand ' cliffs' have been formed (about 8 m high) which are continually collapsing back into the fast flowing water.
3. Large whirlpools and currents occuring around mouth and up channel
4.Large mass of Phragmities is floating near entrance
5.Large build up of sand is forming at mouth - from dunes to rocks but is mostly covered by waves.

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 P O O O O O O O O O O O O O O P O O O O O O P O O O O O O O O O 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 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
Flow Direction	Out
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 O O O O O O O I O O I O O I O O O O I O I O I O O I O O O 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	High wind, moderate gale, near gale
Sea State	High

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.22m	1.34m
Time (hh:mm)	11:40	14:10
Tidal influence	Yes
Tidal Range	Time	Height
High	12:55	1.060
Low	06:17	0.350

Observation Documents

Link	Date	File name	Description
Download	25-08-2010 11:40	Photopoint	GP.1
Download	25-08-2010 11:40	Photopoint	GP.2
Download	25-08-2010 11:40	Photopoint	GP.3
Download	25-08-2010 11:40	Photopoint	GP.4
Download	25-08-2010 11:40	Photopoint	GP.5