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Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #9645
Date and Time Saturday 30th May 2015 10:40am
Approved Approved

Notes

  • Outflow reducing & channel width decreasing
  • Rough sea, small waves entering estuary
  • Large amount of sand build up in front of rocks & along channel
  • Sand & debris being carried to mouth by strong longshore drift from erosion occurring at east end of beach
  • Waves in all directions at east end of beach creating a sand projection out to sea at mid beach
  • Strong longshore drift to mouth crossing over outflow & incoming waves
  • Strong north wind blowing sand into channel and area around rocks
  • Low track underwater with waves from north wind increasing depth
  • Large mounds of dead sea grass along beach at south 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 North
Beaufort Scale Strong breeze
Sea State Very Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 1.12m 1.06m
Time (hh:mm) 10:40 12:40
Tidal influence Yes
Tidal Range Time Height
High 11:50 0.970
Low 04:16 0.560

Observation Documents

Link Date File name Description
30-05-2015 10:40 Photopoint Gp1_1
30-05-2015 10:40 Photopoint Gp1_2
30-05-2015 10:40 Photopoint Gp1_3
30-05-2015 10:40 Photopoint Gp1_4
30-05-2015 10:40 Photopoint Gp1_5