Observation #12842 09-04-2019 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#12842
Date and Time	Tuesday 9th April 2019 12:27pm
Approved	Approved

Notes

AHD G6 1.18 @12:20 (estimate only as board is covered with silt)

Mouth is open but high seas & SW swell (waves over 6m.) are entering completely across entrance & channel & travelling into estuary as well as going up to base of dunes all along the beach. Waves are up to base of dune at Gp1 site. Only salt water is entering & returning - green water extends into the estuary & well upstream of G2. Waves (some over 2m high) going down channel then turn east at start of estuary but an occasional wave proceeds north alongside of cliff face. Wind about 6 SE along beach but from S along channel gusts are stronger (7). Large amount of sand blowing into estuary as well as being carried in large waves down the channel . In between waves a large amount of sand is visible in channel with only a very slight flow of salt water return down below the side of cliff

Mouth Observation

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

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

Physical Condition

	Current	Mode
Wind Direction	South
Beaufort Scale	Strong breeze
Sea State	High

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.20m	1.24m
Time (hh:mm)	12:27	16:10
Tidal influence	Yes
Tidal Range	Time	Height
High	14:31	1.040
Low	07:49	0.230

Observation Documents

Link	Date	File name	Description
Download	11-04-2019 09:35	Gp1_20190409_waves_meeting_estuary_down_channel_69.JPG
Download	11-04-2019 09:35	Gp1_20190409_1_212_.JPG	gp1_1
Download	11-04-2019 09:35	Gp1_20190409_2_252_.JPG	gp1_2
Download	11-04-2019 09:35	Gp1_20190409_3_292_.JPG	gp1_3
Download	11-04-2019 09:35	Gp1_20190409_4_332_.JPG	gp1_4
Download	11-04-2019 09:35	Gp1_20190409_5_372_.JPG	gp1_5
Download	11-04-2019 09:35	Gp1_20190409_beach_entrance_channel_.jpg