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GMC Gellibrand River Estuary Mouth Observation Site

18 June 2018

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12174
Date and Time Monday 18th June 2018 09:05am
Approved Approved

Notes

AHD G6  3.68 @ 08:45    Air pressure  1026.5

After yesterdays near gale force winds & extremely high & low tides a natural release occurred over night resulting in a very strong fast flowing dark discharge going out through a very wide entrance travelling both to east & west. The east side of the channel was sheer sided & about 1m.high, collapsing into the fast flow. Occasional longshore drift across the mouth being covered by incoming SSW swell. The wind had scoured the beach & channel area covering seaweed & again reshaping the dunes - Gp1 is now even higher.

Lower water levels around G2 have drained area around flood markers on OOR with water flowing through previously scoured out areas from north to south, but levels upstream are still rising & water from the river flowing onto flats around G6

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 Fresh breeze
Sea State Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 0.78m 0.74m
Time (hh:mm) 09:05 10:15
Tidal influence No
Tidal Range Time Height
High 15:11 1.110
Low 07:18 0.000

Observation Documents

Link Date File name Description
18-06-2018 15:55 Gp1_20180618_1_212_011.JPG gp1_1
18-06-2018 15:55 Gp1_20180618_2_252_012.JPG gp1_2
18-06-2018 15:55 Gp1_20180618_3_292_013.JPG gp1_3
18-06-2018 15:55 Gp1_20180618_4_332_014.JPG gp1_4
18-06-2018 15:55 Gp1_20180618_5_372_015.JPG gp1_5
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