Talk:Coastal management

Management of Coastlines

The coastline is undergoing constant change from the effects of waves and tidal currents. The amount of physical change that results generally depends on the degree of exposure of each length of coast and the predominant geology. These change processes have usually taken place over long historical periods and many examples exist where settlements have been lost through erosion or where former coastal villages are now landlocked because of coastal build up.

Another influence on the development of the coastline has been the human intervention throughout the ages, particularly in attempts to arrest the effect of erosion or flooding at particular locations. In many cases this has taken place without any acknowledgement of the effect these works have on other locations up and down the coast.

Proposal to merge with Breakwater

I would not merge breakwater with this article. Coastal management is a much wider issue. Try global warming as another issue that is going to affect coastal management. Gregorydavid 15:51, 29 April 2006 (UTC)

Sea Wall Entry

Under the sea wall heading it states that the wave energy is'absorbed' which is why maintenance is needed after only ten years. However, later on under the sea wall heading it speaks of 'reflected' wave energy. It also says this in the main sea wall article. Is the wave energy reflected or absorbed?

Both my dear! Reflection depends a lot on the slope of the seawall: if vertical, there is a lot of reflection; if at a gentle slope, there is more absorption than reflection (think about what happens on a beach >> almost no reflection). Note that seawalls are supposed to be rather steep, so they induce quite a lot of reflection (typically 50 to 100% of the incoming wave energy)Artreve 15:32, 21 October 2007 (UTC)

I think it would be better to say the wave energy is dissipated rather than absorbed —Preceding unsigned comment added by 119.224.56.240 (talk) 02:52, 19 June 2009 (UTC)

There is a problem in saying that on a more gentle slope energy is absorbed! To help visualize, if a goal-keeper stands firm and receives a high energy ball directed straight at him, he absorbs the energy (with the result that he moves backwards slightly because he is not totally rigid) BUT, if the goal-keeper receives a high ball and reaches up to push it over the bar, he doesn't absorb much energy at all....the mass and energy of the ball is mostly deflected upwards. For our (more rigid)seawall, a head-on strike by the waves will be mostly deflected back, BUT will move / shake imperceptibly due to the impact (the sum of many such small movements is partly what causes the eventual structural failure that requires repair). However, a lower angled seawall will not suffer the same devastating blow...it can deflect alot of that energy upwards and over itself! (Pity the poor soul walking along these seawalls in stormy conditions!) Also, the vertical gaps between each section of seawall are potential points of weakness because (particularly in a vertical wall) the immense hydraulic pressure, as water is forced suddenly into a small gap, is of the order of several tons of pressure...all in less than a second. this force can easily destroy the coherent structure of a stretch of seawall. (Notice that these gaps are filled with a plastic-like / mastic substance..which needs replacing regularly) —Preceding unsigned comment added by 84.13.183.187 (talk) 22:24, 2 April 2011 (UTC)

Construction replace engineering

The term engineering used as an adjective for particular construction techniques is often used in an offensive manner. Engineers are often involved in planning outcomes and deciding not to do construction. Opponents of intrusive construction solutions in sensitive environments often say they would prefer to have a well thought out and planned sustainable solution instead of just having an engineering approach. Its true that many old world engineers did tend to do works that destroyed environments - but its not fair that all engineers are tarred with an adjective that contrasts an "engineering" approach as just being constructing something with better approaches involving examining sustinability and biodiversity aspects. Modern engineers are often the driving force behind non-structural solutions - and so the term engineering to mean constructing something is no longer suitable (in my opinion). User: guest 29 December 2006

Coast defence

Coast defence redirects here. But this article has nothing on military importance or information. J. D. Redding

Yeah, I was expecting an article on the military defense of coastlines. Does such an article exist on Wikipedia? --Delirium 06:56, 16 July 2007 (UTC)

I agree we should separate miltary "defence" and "civil engineering" coastal defence. For the military aspect, see Revetment and Seacoast Defense (US).Artreve 15:35, 21 October 2007 (UTC)

too long??

Perhaps, but it is a beautiful page! Bravo. Don't cut into pieces.Artreve 15:43, 21 October 2007 (UTC)

Detention basin

I placed this at the see also section but it probably deserves to be mentioned in the text too KVDP (talk) 06:42, 14 June 2013 (UTC)

Soft Engineering methods

Perhaps that Ronald Waterman can be mentioned in this section ? Also, dredging companies like Van Oord and Boskalis use this technique. EcoShape should also be mentioned. KVDP (talk) 12:45, 27 February 2014 (UTC)

References

Cost Benefit Analysis

Decisions about coastal management have to take into account the advantages and disadvantages of each option as well as the cost implications of them. For a coastal management strategy to be implicated, the cost of the land must outweigh the cost of the project. Large settlements take priority, followed by strategically important locations such as power stations; areas of less value such as farm land are rarely given the same level of protection.

Please expand Lewis101111 (talk) 10:58, 26 April 2015 (UTC)

References

Taxodium distichum

It seems that swamp cypress is also very important for coastal defense against storms, ... In the episode regarding Aunt Julia at Atlas of cursed places, it was mentioned this species helped to protect New Orleans during the 1915 hurricane. Nowadays, Lousiana swamp has been degraded, and hence this protection has been heavily reduced.

Not yet mentioned in article. --Genetics4good (talk) 10:59, 27 December 2020 (UTC)

Wiki Education assignment: Communicating Science

This article was the subject of a Wiki Education Foundation-supported course assignment, between 24 January 2023 and 8 May 2023. Further details are available on the course page. Student editor(s): Meghanrh (article contribs).

— Assignment last updated by Maeflowerbailey16 (talk) 14:14, 20 March 2023 (UTC)