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GMC Gellibrand River Estuary Mouth Observation Site

18 July 2018

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #12282
Date and Time Wednesday 18th July 2018 09:55am
Approved Approved

Notes

AHD G6 2.30 @ 09;37       Air pressure 1010   SW swell 14-19-18 secs

Pale discharge only around the mouth, large amount of sand in breakers.           At 10:40 waves/saltwater was entering up channel. Waves & green water on eastside of channel & very narrow flow of slightly darker water moving downstream against cliff towards mouth assisted by extremely strong north wind

Very strong 5-6 NNW wind driving waves to SE side of estuary, but stronger northerly gusts were blowing sand down the channel into the sea, wind is also causing waves to impact against high area of sand mid south side of estuary. Despite this waves coming down the channel reach the estuary & disappear only to reappear much further north as they meet the sand bar

Only 2 photos taken because of wind strength

Mouth Observation

Mouth state Open
Previous
Flow Present? No
Previous
Flow Direction N/A
Previous
Above Sea Above Estuary
Berm Height (m)
Berm Length (m)

Physical Condition

Current Mode
Wind Direction North
Beaufort Scale Strong breeze
Sea State High

Water Levels and Tides

Water Level Start Finish
Height (m) 0.66m 1.02m
Time (hh:mm) 09:55 11:26
Tidal influence Yes
Tidal Range Time Height
High 15:09 1.080
Low 08:04 0.420

Observation Documents

Link Date File name Description
24-07-2018 11:45 Gp1_20180718_2_entrance_020_copy.jpg gp1_1
24-07-2018 11:45 Gp1_20180718_4_entrance_backwash_4022_copy.jpg gp1_1
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