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GMC Gellibrand River Estuary Mouth Observation Site

12 August 2017

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #11390
Date and Time Saturday 12th August 2017 12:10pm
Approved Approved

Notes

Dark discharge mainly around mouth

Waves going high up on beach, entering mouth over wide area. Beach has been levelled out with large amount of sand visible in backwash going out to sea

Overnight storm surge (6-7 m. high waves) has cut into area at start of channel creating a .5m. -1.5 m. high sheer face on dune below Gp1.

Wind in different directions only 4 at Gp1 (sheltered by west cliff) but 6 on beach & eastern part of estuary

Low track is under water but no water on any other road or track apart from some at north side of OOR near flood markers.  Water pouring through eastern culvert but more water has built up at side of road near west culvert which remains blocked

Large areas of flooding upstream G4  Turbidity G6  29 NTU'S (east side)           24 NTU's  (west side)

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-West
Beaufort Scale Moderate breeze
Sea State Very Rough

Water Levels and Tides

Water Level Start Finish
Height (m) 1.02m 1.13m
Time (hh:mm) 12:10 13:40
Tidal influence Yes
Tidal Range Time Height
High 14:43 1.070
Low 08:17 0.440

Observation Documents

Link Date File name Description
12-08-2017 13:10 Gp1_20170812_1_212_1839.JPG gp1_1
12-08-2017 13:10 Gp1_20170812_2_252_1840.JPG gp1_2
12-08-2017 13:10 Gp1_20170812_3_292_1841.JPG gp1_3
12-08-2017 13:10 Gp1_20170812_4_332_1842.JPG gp1_4
12-08-2017 13:10 Gp1_20170812_5_372_1843.JPG gp1_5
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