Observation #10983 09-03-2017 | GMC: Gellibrand River Estuary Mouth Observation Site

Observation details

Overview

Estuary	Gellibrand River Estuary
Site	Gellibrand River Estuary Mouth Observation Site
Observation ID	#10983
Date and Time	Thursday 9th March 2017 07:05am
Approved	Approved

Notes

Natural opening occurred late 08/3/17 - planned Artificial Opening for 09/3/17 was not required. Mouth opened against the cliff after sweeping around in a wide shallow curve with a sheer east side of about10-60cm.The actual opening was very narrow with the projection V shaped pointing toward the cliff, the flow then turned S/E against through the berm (about 85 cm. high), the out flow was shallow & gradually turned sharply to east along beach face during the day.

The restricted area of the channel was much closer to the sea than the usual restriction of the rocks that normally hold back the flow. Beach was highest at east end with sand projecting out to sea mid beach then slopping down to entrance where the berm rises higher

Fish were gasping at the surface at G2 but further down in the estuary along E & S side were swimming downstream to entrance.

Mouth Observation

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

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

Physical Condition

	Current	Mode
Wind Direction	North-East
Beaufort Scale	Light Breeze
Sea State	Moderate

Water Levels and Tides

Water Level	Start	Finish
Height (m)	1.40m	1.40m
Time (hh:mm)	07:46	10:55
Tidal influence	No
Tidal Range	Time	Height
High	01:43	0.900
Low	11:11	0.390

Observation Documents

Link	Date	File name
Download	09-03-2017 07:10	Gp1_20170309_1_212_9602.JPG
Download	09-03-2017 07:10	Gp1_20170309_2_252_9603.JPG
Download	09-03-2017 07:10	Gp1_20170309_3_292_9604.JPG
Download	09-03-2017 07:10	Gp1_20170309_4_332_9605.JPG
Download	09-03-2017 07:10	Gp1_20170309_5_372_9606.JPG