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GMC Gellibrand River Estuary Mouth Observation Site

14 April 2017

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #11110
Date and Time Friday 14th April 2017 11:36am
Approved Approved

Notes

Flowing very strongly out of a wide entrance, dark discharge around mouth & to east.  Channel is wide at entrance & very wide at entry from estuary where it forms a curve around the Gp1 dune site. Channel also widens significantly level with rocks where flow swings around to east.

Channel bank on east side is sheer and starts at .3m from estuary, .80m just before rocks & over 2.5m at ocean.

Waves are entering across a very wide area over out flow.Waves going upstream are being created by both long shore drift and incoming swell. This activity is creating a whirlpool at rocks with a great deal of sand visible in water. Sand build up visible around & directly downstream of rocks

Beach face is gradual slope with waves travelling up to dunes at east.

Musk duck sighted on 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 South
Beaufort Scale Gentle breeze
Sea State Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 1.60m 1.53m
Time (hh:mm) 11:36 13:06
Tidal influence Yes
Tidal Range Time Height
High 07:29 0.280
Low 14:08 1.130

Observation Documents

Link Date File name Description
14-04-2017 12:35 Gp1_20170414_1_212_0515.JPG gp1_1
14-04-2017 12:35 Gp1_20170414_2_252_0516.JPG gp1_2
14-04-2017 12:35 Gp1_20170414_3_292_0517.JPG gp1_3
14-04-2017 12:35 Gp1_20170414_4_332_0518.JPG gp1_4
14-04-2017 12:35 Gp1_20170414_5_372_0519.JPG gp1_5
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