Observation #12821 01-04-2019 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#12821
Date and Time	Monday 1st April 2019 13:16pm
Approved	Approved

Notes

AHD G2 1.47 @ 09:00 1.33 @ 13:20 1.22 @ 15:50 AHD G6 1.52 @13:00 1.42 @ 17:42 On 02-04-19 AHD @ G2 was 0.54 @ 14:00 G6 0.88 @13:43 (estimate for G6 only as board was covered with silt & unreadable)

Very wide strong & dark discharge @ entrance, out along foreshore to east then turning south at east end of beach -visible a long way out to sea. Water in the estuary very dark -almost black

Channel from estuary over 20 m wide & about 40 m wide @ entrance. Strong & frequent longshore drift across entrance over Sw swell & very strong outflow. Waves entering & continuing along eastside of channel meeting outflow midway creating a whirlpool with a very large amount of sand visible & also building up against edge. Sand was visible in outflow travelling down whole length of channel

Mouth Observation

Mouth state	Open
Previous	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 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
Flow Present?	Yes
Previous	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 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
Flow Direction	Out
Previous	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 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

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

Physical Condition

	Current	Mode
Wind Direction	South
Beaufort Scale	Gentle breeze
Sea State	Rough

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.33m	1.22m
Time (hh:mm)	13:16	15:50
Tidal influence	Yes
Tidal Range	Time	Height
High	03:04	0.800
Low	11:59	0.430

Observation Documents

Link	Date	File name	Description
Download	06-04-2019 09:35	Gp1_20190401_1_212_026.JPG	gp1_1
Download	06-04-2019 09:35	Gp1_20190401_2_252_027.JPG	gp1_2
Download	06-04-2019 09:35	Gp1_20190401_3_292_028.JPG	gp1_3
Download	06-04-2019 09:35	Gp1_20190401_4_332_029.JPG	gp1_4
Download	06-04-2019 09:35	Gp1_20190401_5_372_030.JPG	gp1_5
Download	06-04-2019 09:35	Ge_20190401_sand_formation_in_channel_011.JPG