Observation #10650 23-12-2016 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#10650
Date and Time	Friday 23rd December 2016 10:20am
Approved	Approved

Notes

Observations taken near low tide. Humidity high. Swell time 11-10 sec

Reduced dark brown reddish discharge around mouth & alongside beach face to east

Mouth shallow, occasional long shore drift across mouth. Greatly increased sand build up. Flow only between rock & cliff. Side of channel has sheer side suggesting a strong release as sea level dropped at last low tide

Beach face high with lower area between face & dunes

Sandbar well uncovered also side of low track where algae is forming on stream side veg & sea-grass. Mosquito larvae, mosquitoes & flies in areas nearer car park but many small fish observed at south side of estuary

Turquoise dragonflies (3) & red Damselfly (1) amongst stream side veg east side of estuary

Mouth Observation

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

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

Physical Condition

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

Water Levels and Tides

Water Level	Start	Finish
Height (m)	0.52m	0.48m
Time (hh:mm)	10:20	11:25
Tidal influence	Yes
Tidal Range	Time	Height
High	05:07	0.810
Low	13:13	0.440

Observation Documents

Link	Date	File name	Description
Download	23-12-2016 10:20	Gp1_20161223_1_212_8956.JPG	gp1_1
Download	23-12-2016 10:20	Gp1_20161223_2_252_8957.JPG	gp1_2
Download	23-12-2016 10:20	Gp1_20161223_3_292_8958.JPG	gp1_3
Download	23-12-2016 10:20	Gp1_20161223_4_332_8959.JPG	gp1_4
Download	23-12-2016 10:20	Gp1_20161223_5_372_8960.JPG	gp1_5