Table of Contents
Introduction 4
Research Methodology 5
Study Area 6
Research Findings 9
Q2 – Human Activities and Natural processes. 9
Introduction
The coastal environment of one of Australia’s most inhabited places on our land. Currently 85% of Australia’s population lives along the east coast of Australia and people are uneducated about the impacts that they are having along the coastline. With the population increasing everyday the coastline is receive huge pressure to sustain, and further develop the area. Many management plans have been put into place along the coastal areas around Narrabeen Lagoon and beach. These include dune rehabilitation,
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The report has also been accompanied with information learnt and known beforehand and after the excursion. The field trip entailed us going to sites such as, Narrabeen lagoon and beach, Collaroy beach, Long Reef Headland and Fisherman’s beach, which where able to show us what sort of human and natural processes have taken place, especially over the time of the recent storm due to the easterly low. At Narrabeen lagoon we learnt about the rock-training wall and the process it has in assisting with water flow. We walked up to a viewing point that gave us a look at Birdwood Park and the re-built and re-vegetated sand …show more content…
Currently 85% of Australia’s population lives along the east coast of Australia and people are uneducated about the impacts that they are having along the coastline. With the population increasing everyday the coastline is receive huge pressure to sustain, and further develop the area. Many management plans have been put into place along the coastal areas around Narrabeen Lagoon and beach. These include dune rehabilitation, sand replenishment and the introduction of the rock-training wall in 1982.
This report will be based upon fieldwork conducted on the 5th of May 2015, along the Narrabeen coastline. It will cover questions such as what has been done to stabilise and reduce the effects of natural processes.
1. Destructive waves causing the largest wave cut platform in the Southern Hemisphere along Long Reef Beach
2. What has the Warringah Council has done with the addition of hard engineering and the process of dune rehabilitation with the plantation of spinifex grass and mass movement of grass.
Throughout this report, I hope that there will be conclusive evidence that the questions raised will be answered with thorough
However, if any action is taken to defend the coastline, if you hinder in nature's course of beach erosion, there will always be after effects resulting from unnatural intrusion. This proves that any sea defence could prove a problem especially with the land owned by Nation Trust. Nevertheless if you could prove to the owners of the land to the extent of which erosion is taken place and show them how much LSD is affecting the area, action may well become a better option.
There are many things working together to ensure Dune stabilization. These include; re-vegetation, fences, poly-mesh fencing, planked walkways, and controlled pedestrian access. This method is a softer option than the rip-rap wall and is used because human land-use, which at this place consists mainly of recreational buildings, is far away from the ocean. Deposition is also being managed at North Cronulla beach. Dune stabilization is being used to prevent deposited material from being eroded away.
Semaphore is a classic Adelaide beach supporting many facilities. However, this would not be the case if coastal management was not put into progress. Coastal management is a way of supporting the world’s coasts, by using many techniques from construction of structures in which prevents wave energy from reaching the shore to planned strategies. Factors of this includes; rising sea levels, erosion, long and short term drift, sand movement and marine biology. The importance of coastal management is quite significant as it will help to prevent coastal erosion. In addition to this, without coastal management the world will be affect economically, environmentally as well as socially. Without the strategies involving the management of the coast,
The question that needs to be asked is, should local councils protect the coast, or leave it to nature? And how does protection affect the people the environment and the future of Dawlish Warren? I will observe the laws, which have been enforced to ensure the nature of the reserve is protected and the ecological and economical value of Dawlish Warren is looked after. Fig A shows where my investigation is based Dawlish warren incorporates a fantastic amenity- a nature reserve that covers 204 hectares or 505 acres. It is essentially a mile-and a half length of sand spit, extending around the mouth of the River Exe and positively teeming with flora and fauna, so much that not only has it been designated local nature reserve since 1978 but it is also an international one as well.
... consider some ideas of what can be done to further enhance the management of the coastal issue. Using the research action plan, I aim to acquire a sophisticated understanding of longshore drift, coastal management and implementations of coastal issues, through the research action plan. Most importantly, I will include various diagrams explaining how the process of longshore drift occurs and what implementations it has on coastal environments, accompanied by an explanation of how the issue is being managed, a detailed outline of the geographical processes involved and a discussion of the impacts of the issue and why it is important.
cut back on the problems in the Bay. Scientists have given an unthinkable amount of attention to the Bay of the past several years and researchers from countless numbers of agencies and institutions have dove deep into the issues and studying every nook and cranny to create answers to every politicians’ questions. The biggest concern with the Bay, and the most concentrated ...
The Coorong National Park is a protected area located in South Australia 156kms southeast of Adelaide. (See Figure 1) It forms part of the Murray Darling river system and is situated close by to Lake Alexandrina and Lake Albert. The Coorong stretches for more than 130kms and protects many saltwater lagoons of which are sheltered from the pounding surf of the Southern Ocean, by the sand dunes of the Younghusband Peninsula. The Coorong, Lower Lakes and Murray Mouth all form part of a unique wetland environment, consisting of 23 different wetland types ranging from freshwater to hypersaline, dense vegetation to open water and temporary to permanently inundated land. These features contribute to the Coorong, area meeting 8 of the 9 criteria for classification as a ‘Ramsar Wetland’ (See Appendix 1) The Coorong area is classified as a Mediterranean Warm biome with a Mediterranean climate featuring temperatures ranging
Surfers, swimmers and sunbathers use beaches for recreation. People fish off beaches for food. Since many people take their vacations at the beach, lots of beaches in tropical locations are important to their country’s economy. Entire cities, regions and countries depend on the money tourists spend while visiting the beach. Beaches are naturally very dynamic places, but people try to control them and build permanent structures, such as houses, restaurants, shops and hotels, on or near the shore. The natural erosion and deposition of beaches becomes a problem. Beaches con disappear over time, or even over night during severe storms. Beaches are areas of loose sediment (sand, gravel, cobbles) controlled by ocean processes. Most beaches have several characteristic features. First are offshore bars, which help protect beaches from erosion. Next is the foreshore, which rises from the water toward the crest of the next feature; a berm. On low-lying shores, dunes form behind beaches. Dunes look like rolling hills of sand and are blown into place by the wind. New, smaller dunes are often changing shape as the wind continues to affect them. Waves and currents move the accumulated sediment constantly creating, eroding and changing the coastlines.
Lee, S. Y., Dunn, R. K., Young, R. A., Connolly, R. M., Dale, P. R., Dehayr, R. R., & ... Welsh, D. T. (2006). Impact of urbanization on coastal wetland structure and function. Austral Ecology, 31(2), 149-163. doi:10.1111/j.1442-9993.2006.01581.x
Landscapes that have been naturally formed include the Main Beach, sand dunes and grassland/bushland. Fundamental in preserving the natural beauty of the Spit from erosion and weathering are human management development. The Sand Bypass System, which was constructed in 1986, pumps an estimated 500 000 cubic metres of sand along the southeast Queensland coast annually. (Technology, 2017) The Southport Seaway, which was implemented to allow a safer method for boats to travel onshore, it additionally protects inland from the weathering and deposition of the wind and waves. The Federation Walk is a tourist attraction that helps tourist understand the cultural importance of the Spit and its beauty. Other development that boosts the Spit’s annual tourist attraction consists of theme parks, accomodation facilities, shopping centres and etc. (Ltd,
One such location is Cardiff Reef in northern San Diego County. The wave is shaped by a composite reef of rocks covered in eel grass and surf grass. This reef and the kelp forest outside of the reef are sensitive biodiverse marine environments facing threats from rising ocean temperatures, overfishing, and other damaging human activities. Garth Murphy, a former member of the California Department of Fish and Game’s Marine Life Protection Act Initiative Regional Stakeholder Group and surfer, explains “Over-exploitation and depletion or collapse of important food web components causes imbalances that degrade marine ecosystems…diminishing water quality and habitat suitability for marine life and surfers.” In addition rising sea levels could negatively impact the surf and habitat by causing the reef to be in deeper water.
The rivers and creeks along the wet tropics in far North Queensland are followed by massive amounts of banana farms. These farms run across 1500 kilometres of the Queensland coastline. During heavy rainfall, which is plentiful in the area, sediment and nutrients run off into the rivers and eventually end up in the Great Barrier Reef. One of the biggest threats to the Reef is Johnstone River, as it is one of the closest rivers to the Reef, and the farms along its coast are producing the highest yields. Banana farms are used very intensely and combined with the plentiful floods in the area, sediment runoff from the farms is at an all-time
Coastal Erosion, Coastal Transportation and Coastal Deposition are natural processes that have occurred at Muriwai's coastal geographic environment. These processes outlined have formed such phenomena as Motutara Island (stack), Otakamiro Point (headland/cliff), Fisherman's Rock (shore-platform), cave and the blowhole.
While those traveling from afar have always known Australia for its beaches, her outback regions and the great metropolitan centers of Sydney and Melbourne, few have experienced the wonders of Lake Macquarie. Being flanked on all sectors by beautiful sandy white beaches, majestic mountains and the deep blue sea, a near perfect sub-tropical climate makes this a destination of choice for native Aussies and foreign visitors alike. Visitor Information Situated in the Hunter Region of New South Wales, an area of 110 square kilometres, or 42.5 square miles, connects it to the Tasman Sea by a short channel. This proximity to open waterways makes it most convenient for the residents of the City of Lake Macquarie that live near the shores of the lake.
People from all over the world go to beautiful beaches that are filled with water as clear as ice or as beautiful as diamonds. But, what will happen if we do not conserve the appealing sites that draw attraction to the public? Contaminated beaches has become a controversial issue to the public because of the causal problem, the harm to the people and marine animals, the government agencies supporting or opposing pollution, and the industries involved in creating such unlawful decisions. To create and find a solution, we must first find the core to the problem.