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GMC Gellibrand River Estuary Mouth Observation Site

1 April 2019

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12821
Date and Time Monday 1st April 2019 13:16pm
Approved Approved

Notes

AHD G2  1.47 @ 09:00      1.33 @ 13:20          1.22 @ 15:50                            AHD G6  1.52  @13:00       1.42 @ 17:42                                                             On 02-04-19 AHD  @ G2 was 0.54  @ 14:00   G6  0.88  @13:43  (estimate for G6  only as board was covered with silt & unreadable)    

Very wide strong & dark discharge @ entrance, out along foreshore to east then turning south at east end of beach -visible a long way out to sea. Water in the estuary very dark -almost black

Channel from estuary over 20 m wide & about 40 m wide @ entrance. Strong & frequent longshore drift across entrance over Sw swell & very strong outflow. Waves entering & continuing along eastside of channel meeting outflow midway creating a whirlpool with a very large amount of sand visible & also building up against edge. Sand was visible in outflow travelling down whole length of channel

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
Beaufort Scale Gentle breeze
Sea State Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 1.33m 1.22m
Time (hh:mm) 13:16 15:50
Tidal influence Yes
Tidal Range Time Height
High 03:04 0.800
Low 11:59 0.430

Observation Documents

Link Date File name Description
06-04-2019 09:35 Gp1_20190401_1_212_026.JPG gp1_1
06-04-2019 09:35 Gp1_20190401_2_252_027.JPG gp1_2
06-04-2019 09:35 Gp1_20190401_3_292_028.JPG gp1_3
06-04-2019 09:35 Gp1_20190401_4_332_029.JPG gp1_4
06-04-2019 09:35 Gp1_20190401_5_372_030.JPG gp1_5
06-04-2019 09:35 Ge_20190401_sand_formation_in_channel_011.JPG
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