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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #10650
Date and Time Friday 23rd December 2016 10:20am
Approved Approved

Notes

Observations taken near low tide. Humidity high. Swell time 11-10 sec

Reduced dark brown reddish discharge around mouth & alongside beach face to east

Mouth shallow, occasional long shore drift across mouth. Greatly increased sand build up. Flow only between rock & cliff. Side of channel has sheer side suggesting a strong release as sea level dropped at last low tide

Beach face high with lower area between face & dunes

Sandbar well uncovered also side of low track where algae is forming on stream side veg & sea-grass. Mosquito larvae, mosquitoes & flies in areas nearer car park but many small fish observed at south side of estuary

Turquoise dragonflies (3) & red Damselfly (1)  amongst stream side veg east side of estuary

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 Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 0.52m 0.48m
Time (hh:mm) 10:20 11:25
Tidal influence Yes
Tidal Range Time Height
High 05:07 0.810
Low 13:13 0.440

Observation Documents

Link Date File name Description
23-12-2016 10:20 Gp1_20161223_1_212_8956.JPG gp1_1
23-12-2016 10:20 Gp1_20161223_2_252_8957.JPG gp1_2
23-12-2016 10:20 Gp1_20161223_3_292_8958.JPG gp1_3
23-12-2016 10:20 Gp1_20161223_4_332_8959.JPG gp1_4
23-12-2016 10:20 Gp1_20161223_5_372_8960.JPG gp1_5