Observation #11110 14-04-2017 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#11110
Date and Time	Friday 14th April 2017 11:36am
Approved	Approved

Notes

Flowing very strongly out of a wide entrance, dark discharge around mouth & to east. Channel is wide at entrance & very wide at entry from estuary where it forms a curve around the Gp1 dune site. Channel also widens significantly level with rocks where flow swings around to east.

Channel bank on east side is sheer and starts at .3m from estuary, .80m just before rocks & over 2.5m at ocean.

Waves are entering across a very wide area over out flow.Waves going upstream are being created by both long shore drift and incoming swell. This activity is creating a whirlpool at rocks with a great deal of sand visible in water. Sand build up visible around & directly downstream of rocks

Beach face is gradual slope with waves travelling up to dunes at east.

Musk duck sighted on estuary

Mouth Observation

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

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

Physical Condition

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

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.60m	1.53m
Time (hh:mm)	11:36	13:06
Tidal influence	Yes
Tidal Range	Time	Height
High	07:29	0.280
Low	14:08	1.130

Observation Documents

Link	Date	File name	Description
Download	14-04-2017 12:35	Gp1_20170414_1_212_0515.JPG	gp1_1
Download	14-04-2017 12:35	Gp1_20170414_2_252_0516.JPG	gp1_2
Download	14-04-2017 12:35	Gp1_20170414_3_292_0517.JPG	gp1_3
Download	14-04-2017 12:35	Gp1_20170414_4_332_0518.JPG	gp1_4
Download	14-04-2017 12:35	Gp1_20170414_5_372_0519.JPG	gp1_5