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GMC Gellibrand River Estuary Mouth Observation Site

21 April 2018

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12003
Date and Time Saturday 21st April 2018 09:30am
Approved Approved

Notes

Observations made at low tide. Dark discharge out around mouth, usual easterly flow obstructed by sand bar. WSW swell mainly impacting east end of beach, sand spit diverting some waves back towards the entrance but longshore drift is in a WSW direction. Water level low, sheer sides of channel 1.5 -2.5 m close to beach face area. Waves from WSW swell & longshore drift crossing over out flow -waves & currents in all directions

Sand bar has formed from west side of spit to entrance channel & is visible about 15-20 m out running parallel  with shoreline

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) 0.58m 0.51m
Time (hh:mm) 09:30 11:14
Tidal influence Yes
Tidal Range Time Height
High 15:24 1.110
Low 07:55 0.220

Observation Documents

Link Date File name Description
28-04-2018 13:45 Gp1_20180421_1_212_0214.JPG gp1_1
28-04-2018 13:45 Gp1_20180421_2_252_0215.JPG gp1_2
28-04-2018 13:45 Gp1_20180421_3_292_0216.JPG gp1_3
28-04-2018 13:45 Gp1_20180421_4_332_0217.JPG gp1_4
28-04-2018 13:45 Gp1_20180421_5_372_0218.JPG gp1_5
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