Observation #12514 09-11-2018 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#12514
Date and Time	Friday 9th November 2018 07:48am
Approved	Approved

Notes

Continuing rough seas & strong west winds over past days (6.3-6.1 swell height) on 03-11-18) have created a small low berm which was observed formed across mouth around 06-11-18 pm. The top of the middle rock was still uncovered. Waves had been over topping the berm at the last hi tide & entering the estuary - indicated by sand & swash line. Beach undulating with some very low areas. Sand very high at east end where sheer sided areas occur at the top of a steep decent to ocean - beach slopes down towards start of berm & entrance. Waves have been up to base of dunes in some areas - indicated by swash line which contained large dense areas of small shells, tiny crabs, shrimp, extremely small Janthina-janthina & larger 'By the wind sailors'.

No water in camp ground or over any roads/tracks. Water up to the ocean car park along low track & up to the side of the recently raised OOR near flood markers (drains & sides of OOR are currently undergoing maintenance)

Flood water occurs on both west & east flats @ Kangaroobie, G4 (Rivernook) flats are under water with wide flow through dip in causeway. US G4 water in drains only up to between G5&G4 . Upstream from there to G5 water covers large areas on both sides of channel. Water just starting to enter upstream of Coxon's track (G5)

AHD @ G6 1.60 @ 07:15 rising to 1.61 @14:58 AHD @ G2 1.43 @ 07:15 rising to 1.46 @ 17:00

Mouth Observation

Mouth state	Closed
Previous	O O O O O O O P C C C C C C C O O O O C C C C C C 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
Flow Present?	No
Previous	Y Y Y Y Y Y Y N N N N N N N N Y Y Y Y N N N N N N 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
Flow Direction	N/A
Previous	O O O O O O O N N N N N N N N O I O O N N N N N N 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

	Above Sea	Above Estuary
Berm Height (m)	0.2m	0.1m
Berm Length (m)	37.2m

Physical Condition

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

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.43m	1.44m
Time (hh:mm)	07:48	13:00
Tidal influence	Yes
Tidal Range	Time	Height
High	02:01	1.130
Low	08:35	0.490

Observation Documents

Link	Date	File name	Description
Download	10-11-2018 14:50	Gp1_20181109_1_212_027.JPG	gp1_1
Download	10-11-2018 14:50	Gp1_20181109_2_252_028.JPG	gp1_2
Download	10-11-2018 14:50	Gp1_20181109_3_292_029.JPG	gp1_3
Download	10-11-2018 14:50	Gp1_20181109_4_332_030.JPG	gp1_4
Download	10-11-2018 14:50	Gp1_20181109_5_372_031.JPG	gp1_5