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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
Flow Present? Yes
Previous
Flow Direction Out
Previous
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 Description
09-03-2017 07:10 Gp1_20170309_1_212_9602.JPG
09-03-2017 07:10 Gp1_20170309_2_252_9603.JPG
09-03-2017 07:10 Gp1_20170309_3_292_9604.JPG
09-03-2017 07:10 Gp1_20170309_4_332_9605.JPG
09-03-2017 07:10 Gp1_20170309_5_372_9606.JPG