How do I measure tidal flow volume?
Submitted by Fathom on Fri, 2021-09-03 20:08
I'm trying to get some figures on tidal water volume that flows in/out of a marina for a project that is required to try and fix an environmental disaster. The opening is 103mtrs wide and average depth is about 4-5mtrs (will get more accuracy when I know the formula for the maths). It's midwest coast tides and I need the volume of water from low tide to high tide as it passes the entry point. Would anyone in the Fishwrecked brains trust know how to calculate that? Cheers.
CD
Posts: 46
Date Joined: 06/12/16
Send me a PM with more
Send me a PM with more details and I can probably help you out.
Fathom
Posts: 619
Date Joined: 18/04/08
Cheers CD
PM sent, hope you can help mate, it's a pretty bad situation.
Pete F
Posts: 310
Date Joined: 07/01/18
You need to know the area of
You need to know the area of the marina x depth of the tide change. Then it would be if that size opening could handle the volume in the time frame.
Cheers
Fathom
Posts: 619
Date Joined: 18/04/08
,Area is 160,000 Square mtrs
Depth of tide change at max high/low approx. 600mm. Now this can be easily worked out in a river with constant flow but tides run at different speeds from start to finish but if I can work out how much water is flowing in mid tide or the maximum flow rate that would suffice. Thanks.
Edit: The idea is to stop the natural incoming tide coming through the entrance and creating a new clean source of water/aeration as a man made tide
Rob H
Posts: 5796
Date Joined: 18/01/12
as someone said above, if
as someone said above, if the area is 160,000 sq meters and a tide movement of 600mm that makes 96000 cubic meters of water each tide movement (6 hrs 20)
If the water average depth is 5 meters it holds 800,000 cubic meters.
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sea-kem
Posts: 14967
Date Joined: 30/11/09
Jurien Bay?
Jurien Bay?
Love the West!
Fathom
Posts: 619
Date Joined: 18/04/08
Yep
Sure is.
sea-kem
Posts: 14967
Date Joined: 30/11/09
I've been reading a bit
I've been reading a bit about this lately, seems to be a major problem up there.
Love the West!
Dhu_west
Posts: 116
Date Joined: 30/06/20
Exactly what I was thinking
Exactly what I was thinking
More of a fisherman than a catcherman
Roobuoy
Posts: 14
Date Joined: 13/08/20
Hey Fathom, might be able to
Hey Fathom, might be able to help you out - I work for a company that does this sort of stuff commercially. contact me via PM and we can have a chat if you want. Its a project close to my heart, so would be happy to be involved
Ticketyboo!!
Fathom
Posts: 619
Date Joined: 18/04/08
Marina Restoration
Officially It's named by Departement of Transport as: Jurien Bay Boat Harbour (JBBH)
Construction was never finished to origanal plan? I'd like to see a copy of the original plan if anyone has one please.
Did a team of designers for the "JBBH" finally realise they just created a huge weed funnel? Dropped tools and ran away?
Heres some old vid of some old blokes in old suits talking about the old subject, for those needing more info: https://www.youtube.com/watch?v=vZgJ6gCXZbQ&t=433s
Latest info from DOT: https://www.transport.wa.gov.au/projects/jurien-bay-boat-harbour.asp
Thanks for the responses you mob, it really is appreciated. WA, we have a problem ... there is a "rally" being held at the marina (Boat Harbour) this Saturday 10AM I've heard, you might find details on facebook?
I'll respond a bit more later.....meanwhile to keep yo entertained here is some more JBBH CRAB action: https://www.youtube.com/watch?v=dxXvb_HSwqY
Silver Fox
Posts: 1111
Date Joined: 19/06/14
Good luck with the rally.
DOT and Allanah Mc Tiernan are tits on a bull. Just look at the Fascine in C'von. Almost six years since the Fascine debarcle and there's still no access for any boat with a decent draft into the Marina or boat ramp. Appalling.
My wife understands why I clean my rods n reels in the shower....