Observation #13468 19-12-2019 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#13468
Date and Time	Thursday 19th December 2019 11:10am
Approved	Approved

Notes

AHD board @ G6 covered with thick silt -Unreadable

Dark discharge flowing out over an increased height of sand buildup around mouth & to south. SW swell impacting on west side of sand projection mid beach creating backwash & longshore drift which is mixing with incoming swell causing small waves up to rocks then low against east side of channel continuing around & across front of large sand projection to SE corner of lagoon. Area east of 1st rock has been filled with sand & water only flowing through narrow gap between !st & 2nd rock with a larger area of flow against cliff.

Very low tide has exposed large areas of sand on ocean beach & in lagoon where areas of algae occur along east side of lagoon. Algae is also covering areas of both west & north wetlands

Mouth Observation

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

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

Physical Condition

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

Water Levels and Tides

Water Level	Start	Finish
Height (m)	0.38m	0.35m
Time (hh:mm)	11:10	13:28
Tidal influence	Yes
Tidal Range	Time	Height
High	13:10	0.780
Low	10:23	0.530

Observation Documents

Link	Date	File name	Description
Download	22-12-2019 13:25	Gp1_20191219_1_212_850.JPG	gp1_1
Download	22-12-2019 13:25	Gp1_20191219_2_252_852.JPG	gp1_2
Download	22-12-2019 13:25	Gp1_20191219_3_292_853.JPG	gp1_3
Download	22-12-2019 13:25	Gp1_20191219_4_332_854.JPG	gp1_4
Download	22-12-2019 13:25	Gp1_20191219_5_372_855.JPG	gp1_5
Download	22-12-2019 13:25	Ge_20191219_sand_in_channel_at_rocks_845.JPG
Download	22-12-2019 13:25	Ge_20191219_entrance_upstream_847.JPG