Observation #12890 25-04-2019 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#12890
Date and Time	Thursday 25th April 2019 14:55pm
Approved	Approved

Notes

AHD G6 about 0.78 - board still covered with silt

Waves entering across a wide area & travelling down channel into estuary -large amount of green water is visible almost to tunnel entrance & can be seen mixing with darker fresh throughout the estuary. Only salt return occurring over high sand build up in channel. Outflow is very narrow & shallow - often no flow at all. Waves going very high up all along beach & entering very wide at mouth. At 15:50 a very strong longshore drift was visible going across entrance -impacting on west cliff & sending strong waves up channel

1 dead Gannet on beach near entrance & about 10 others feeding in area around the ocean sandbar. 2 dark grey Pacific gulls feeding in estuary

Mouth Observation

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

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

Physical Condition

	Current	Mode
Wind Direction	North
Beaufort Scale	Fresh breeze
Sea State	Very Rough

Water Levels and Tides

Water Level	Start	Finish
Height (m)	0.78m	0.92m
Time (hh:mm)
Tidal influence	Yes
Tidal Range	Time	Height
High		1.160
Low		0.050

Observation Documents

Link	Date	File name	Description
Download	28-04-2019 09:30	Ge_20190425_waves_entering_2_0107.JPG
Download	28-04-2019 09:30	Gp1_20190415_entrance_channel_.jpg	gp1_1
Download	28-04-2019 09:30	Gp1_20190425_waves_entering_1__0115.JPG	gp1_1
Download	28-04-2019 09:30	Gp1_20190425_waves_entering_2__0116.JPG	gp1_1