Observation #3263 12-03-2010 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#3263
Date and Time	Friday 12th March 2010 10:40am
Approved	Approved

Notes

1. Recent rainfall up stream
(07.03.10 - 10.03.10 = 41ml.) has increased flow.
2. Strong out flow -discharge only around mouth and to sw. Channel has moved further to the east (about 8-10m. wide) below rocks with sand build up against cliff.
3. East side of channel has steep side (1m) which is collapsing into flow. Waves in all directions at entrance- longshore drift bringing back more sand into channel
4. Rocks are restricting flow. Water higher behind with a whirlpool. The channel widens in this area to about same as area below.
5.Channel narrows about 30-40m upstream
6. Rocks are exposed at east end and the beach is very wide near mouth
7.Wooden 'gate' at front of tunnel has become detatched and slipped down

Mouth Observation

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

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

Physical Condition

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

Water Levels and Tides

Water Level	Start	Finish
Height (m)	0.93m	0.90m
Time (hh:mm)	10:40	12:15
Tidal influence	Yes
Tidal Range	Time	Height
High	13:41	0.510
Low	09:03	0.440

Observation Documents

Link	Date	File name	Description
Download	12-03-2010 10:40	Photopoint	GP.1
Download	12-03-2010 10:40	Photopoint	GP.2
Download	12-03-2010 10:40	Photopoint	GP.3
Download	12-03-2010 10:40	Photopoint	GP.4
Download	12-03-2010 10:40	Photopoint	GP.5