Observation #11905 10-03-2018 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#11905
Date and Time	Saturday 10th March 2018 10:40am
Approved	Approved

Notes

Mouth opened - cut through very high berm completed @ 15:20

AHD G6 1.45 @ 09:05 - 1.46 @ 15:45

Low tide before opening exposed very wide area in front of berm where a 2nd small berm was forming close to cliff.

Estuary was completely across channel from cliff to dunes & front was wider & moved closer to ocean. Water was very reddish in colour with some areas of algae formed in areas of shallow water close to stream side veg.

Strong wave impact & backwash at mid beach moving a large amount of sand. Strong longshore drift from this area in front of berm to cliff face

No water over any roads (some at side of OOR near flood markers) Low track to beach completely covered & some water in lowest area of hi track. Camp ground has small areas of damp & water in SW area - from rising water table only

Mouth Observation

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

	Above Sea	Above Estuary
Berm Height (m)	1.8m	0.9m
Berm Length (m)

Physical Condition

	Current	Mode
Wind Direction	South
Beaufort Scale	Light Breeze
Sea State	Slight

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.50m	1.50m
Time (hh:mm)	10:40	15:45
Tidal influence	No
Tidal Range	Time	Height
High	03:48	0.810
Low	10:46	0.270

Observation Documents

Link	Date	File name	Description
Download	21-03-2018 07:35	Gp1_20180310_1_212_0037.JPG	gp1_1
Download	21-03-2018 07:35	Gp1_20180310_2_252_0038.JPG	gp1_2
Download	21-03-2018 07:35	Gp1_20180310_3_292_0039.JPG	gp1_3
Download	21-03-2018 07:35	Gp1_20180310_4_332_0040.JPG	gp1_4
Download	21-03-2018 07:35	Gp1_20180310_5_372_0041.JPG	gp1_5