Observation #9830 01-09-2015 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#9830
Date and Time	Tuesday 1st September 2015 10:40am
Approved	Approved

Notes

Flow reducing channel & entrance shallow. Sand building up in front & behind rocks

Small waves entering (green salt water up to rocks at 12:40) active longshore drift rolling sand into channel

Beach very wide east side of entrance -highest at mid beach with steep drop to ocean. Much lower & smooth at east end

Large areas of sand exposed in estuary because of low tide - exposing dead & rotting seagrass

Beach starting to undulate (North/South direction) -

A shallow /wide depression starting to form E/W mid beach, between high front & rising sand further back to dunes carrying water west to mouth

Mouth Observation

Mouth state	Open
Previous	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 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 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 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 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 O O I O I O O I O O O

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

Physical Condition

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

Water Levels and Tides

Water Level	Start	Finish
Height (m)	0.38m	0.47m
Time (hh:mm)	10:40	12:40
Tidal influence	Yes
Tidal Range	Time	Height
High	13:39	0.980
Low	07:34	0.380

Observation Documents

Link	Date	File name	Description
Download	01-09-2015 10:40	Photopoint	Gp1_1
Download	01-09-2015 10:40	Photopoint	Gp1_2
Download	01-09-2015 10:40	Photopoint	Gp1_3
Download	01-09-2015 10:40	Photopoint	Gp1_4
Download	01-09-2015 10:40	Photopoint	Gp1_5