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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12820
Date and Time Thursday 4th April 2019 12:55pm
Approved Approved

Notes

Estimated height @  G6 0.68 - board unreadable because of silt build up

Dark discharge from reducing outflow around the mouth & to west, pale discharge continuing along foreshore to east. Entrance about 50m wide with sheer sides to channel from 1-2 m. high. Sand has built up on east side of channel -also directly downstream of rock. Longshore drift across mouth over sw swell with backwash return & some waves entering up the channel into the estuary. Waves are going high up on the beach at east end of beach which rises & falls creating some deep areas. Height of beach drops as it reaches the mouth

All tracks & roads are without water including low track where an extremely large number of small (1-3 cm) fish were actively swimming. Small fish were observed in all areas of estuary

D.O. levels @ G2 have greatly improved with flow going upstream while monitoring

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 South-West
Beaufort Scale Moderate breeze
Sea State Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 0.50m 0.50m
Time (hh:mm) 12:55 14:20
Tidal influence Yes
Tidal Range Time Height
High 08:01 0.450
Low 13:42 0.790

Observation Documents

Link Date File name Description
05-04-2019 14:20 Gp1_20190404_1_212_025.JPG gp1_1
05-04-2019 14:20 Gp1_20190404_2_252_026.JPG gp1_2
05-04-2019 14:20 Gp1_20190404_3_292_027.JPG gp1_3
05-04-2019 14:20 Gp1_20190404_4_332_028.JPG gp1_4
05-04-2019 14:20 Gp1_20190404_5_372_029.JPG gp1_5