Coastal Management
Coastal Management is the understanding of physical/natural processes that impact coastlands (such as erosion, transportation, and deposition), and the application of this knowledge for the sustainable preservation of these coastal zones. It is aimed at protecting our coastline from erosion and preserving the natural ecosystems within and around these coastal zones. The protection/management of coastlands is important because they are naturally flood prone areas which tend to be densely populated and possess economic potential to agriculture, tourism and other industries (“Internet Geography”, n.d).
The erosion of coastlines can also lead to the receding of cliffs and the degradation of beach materials. General objectives
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The disadvantages/cons of a hard engineering coastal management approach and their related structures are that they are generally expensive, last a limited amount of time, visually unattractive, unsustainable in some cases and they promote erosion in other areas further down the coast where these structures are noticeably absent. The advantages (pros) however, are that they generally absorb and deflect the impacts of waves very well (highly resistant) which significantly reduces coastland erosion; some are actually cheap and efficient structures for times when a quick fix is necessary to mitigate the impacts of erosion and flooding, and some also promote beach and/or cliff development. (“Internet Geography”, …show more content…
Relatively long lifespan (“Internet Geography”, n.d).
Cons
1. They are expensive
2. The wall receives direct impact and this weakens the structure over time
3. Waves scour the bases of the wall and they often need maintenance or re-development
4. The availability of adequate drainage behind the wall is necessary
5. Modern recurved walls may promote coastline erosion since they do not hinder longshore drift but act as a mere barrier
(Geography LWC, 2015)
• Rip Raps
Rip raps (also referred to as rock armours or boulder barriers) are large, heavy boulders of rocks strategically placed along coastlines which effectively dissipate wave impacts by absorbing its energy while significantly reducing the effects of erosion and impeding the movement of sediments. They essentially serve the same purpose as seawalls but are composed primarily of permeable structures. Rip raps are generally used in conjunction with other structures to fortify and further protect coastlands and is used mainly in this regard for extra fortification purposes or when finances are low and a quick and efficient structure is required for coastland protection. (FSC, 2015)
Pros
1. They do not suffer from wave scour like seawalls
2. They are cheap and efficient
However the walls are not the only things that are old and have a lot of history. The streets were built around the same time as the walls. They are not paved roads like what we have now. They are all crafted with stones. The stones were not cut to look the same as each other.
#1 - Time/Length When Emperor Qin had the idea of building the sheer size wall that was built to increase security, impress visitors, and enhance the glory of china came with patience and a long time. It took over 2,500 years to complete the construction of the wall! According to the background essay’s timeline, so many segments of the wall have been started by different dynasties. They were always being extended, or torn down to repair and built anew. The first dynasty to start the wall was the Qin.
Investigate the economic, social and environmental implications of changing land use around Sydney Harbour. As one of the most recognised icons in the world, Sydney Harbour has been fundamental to the history and the development of both Sydney and Australia as a whole. Although still the same size and location, there have been many changes in the use of the land in Sydney Harbour over the past thousands of years , in particular the Millers Point and Barangaroo precincts which lie among the southern side of the harbour. Through this change in land use, economic, social and environmental implications of the harbour have created many challenges for the government and community.
The Great Wall was constructed thousands of years ago. It was built over a span of 2,000 years and measures to be over 5,400 miles long. Over the 2,000 years of its construction, many dynasties would help construct it. Some of them were the Qin and Han dynasties. The wall would act as a barrier to help keep enemy’s out.
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In ancient China, each dynasty had contributed to building a wall to protect the borders. In the Qin dynasty, they built a 1,500-2500 miles long, part of the wall. This took from 221-206 BCE. Also, the Han dynasty had built a 4,000 mile long part of the wall. Which took from 206 BCE -220 CE (400 years).
Even though the wall was easy to get through, it was still partially effective as a defense, but all of its effectiveness was lost if there were no guards on the wall (Turnbull 2007, 36). These guards were expensive, and villages had to be set up in order to support them with food and a place to live; the villages became a vital part of the Great Wall (Turnbull 2007, 11). The Great Wall also required constant maintenance or else it would crumble and fall; this required a long-term commitment and drained a lot of resources (Turnbull 2007, 10). The wall required lots of work, but it still remained ineffective.
Exploitation of these essential fishes and pollution of the water could greatly destroy the bank systems and cause a rippling effect among the ecosystem. Knowing how important these bank systems are, they should receive additional protection through management zones. New management actions will help protect fish and stocks, to ensure the stability of recreational and commercial fisheries. To ensure a higher water quality and sustainable habitats, anchoring activities and vessel discharges will be restricted in the management zones. Some management zones containing sensitive wildlife habitats will be restricted to public
Elia Kazan’s 1954 film On the Waterfront is a crime drama starring legendary actor Marlon Brando as Terry Malloy, a former prize-fighting boxer turned dock worker employed by Johnny Friendly (portrayed by Lee J. Cobb), the corrupt leader of the local dock workers union. After witnessing the murder of a fellow co-worker and friend, Joey Doyle, Terry is faced with the difficult decision of speaking against Friendly, a long-time family friend and the boss of his older brother Charley, in court in relation to the mob-esque activities of the dockers union, or keeping his mouth shut in an effort to preserve the relationship, and also his own safety. Edie Doyle (portrayed by Eva Saint Marie), the sister of the deceased Joey Doyle, and the local Catholic priest Father Barry (a role performed by actor Karl Malden) make it their mission, along with the Waterfront Crime Commission, to encourage those to speak the truth against Friendly. Eventually, the Commission, Father Barry, and Edie zero in on Terry given that he was the only witness to the murder, and collectively act as the moral compass that tries to sway Terry into doing what is considered to be the just thing to do, even if that means going against family.
The wall is a continuous ridge for 40km. The wall rises 20 m above the basalt lava flows. The wall is an inflated lava flow, also called a lava-rise structure. Geological Historwas trapped deep in the Crust and probably took a very long was trapped deep in the Crust and probably took a very long
Wave Energy Wave energy is a great alternative energy to fossil fuels. When people think of waves, they usually think of surfing, the beach, waves crashing down on the shore, but most people don’t think of energy being converted through waves. This energy is very unique, and more people should know about it, and should definitely be used more. Ocean wave energy is a good alternative to fossil fuels, because is renewable, a powerful clean source, and there are multiple options of ways to harness it. How It Works
Although the Great Wall was built for protection, it did not do it’s job too well. The Xiongnu and Mongols from the north were able to build tall ladders, group together, and charge over a small section of the wall (Cope 163). However despite that fact, the Great Wall was still an important part of the Chinese because the Chinese Emperor was able to think of a method of a series of signal towers, which alerted from far away to the Chinese that a attack was coming and so they they were ready for it (Waldron 63). By having a pile of flammable black smoke powder, on each tower on the Great Wall, the Chinese Emperor was able to deceive an important strategy to make the Great Wall extremely useful (Waldron 64). When signs of a attack was coming,
“Always remember, you have within you the strength, the patience, and the passion…to change the world.” As a leading abolitionist, Harriet Tubman spent her life blazing new paths for freedom. She believed everyone has the potential to change the world. I stand determined change the world by pursuing my dream: lessening the devastation of natural disasters on the Gulf Coast. Witnessing the devastation of hurricanes cultivates my desire to devise strategies for hurricane-resistant structures.
Strategic purpose is something needed, because this allows the performance management to meet the organizational needs of revenue, or direct competition with their competitors. Administration purpose this allows the company to make important administrative decisions. Without and effective system, making salary, promotion, and retention decisions would be very hard. Finally, the three general purpose would be developmental purpose.