Coastal Erosion and Defence in White Cliffs Country

White cliff coastal erosion and defense country's profile The coastline is a dynamic system that maintains a stable state despite continued movement of waves, tides, winds and sediments. The current coastline structure is managed by various coastal defenses that have been implemented in the past 100-200 years. These stop or slow down the transport of sediments and reduce the ability of coastlines to respond to natural forcing factors.

For decades, the rapid coastal eroding method was to establish coastal defense, trying to delay or even stop the erosion. The first attempt was considered successful, but after several years of effort, people have realized that the power of the ocean and waves can overcome human attempts. If you have to deal with enormous costs, only protection can succeed. Many ways in the British Isles occurred with many failures in the last 50 years. After defensive measures are taken, it is difficult to find a coastline, indicating that the erosion rate has declined over the years. Indeed, defense seems to accelerate the erosion process. Coastal erosion is a natural process of erosion, migration, and sedimentation that can cause increased erosion in coastal areas in some areas.

Coastal erosion, coastal transport, coastal sedimentation are the natural processes occurring in Muriwai's coastal topography. These outlined processes form phenomena like Motutara Island (stacking), Otakamiro Point (horn / cliff), fisherman's rock (coast), cave and pore.

Global sea level rise had a major impact on coastal erosion. There are many countermeasures for coastal erosion control in the eastern coastal area of ​​the United States. Places like Florida are aware of the increase in coastal erosion. To deal with these increases, Florida and its county have increased their budget to compensate for sand erosion that erodes tourists in Florida and helps support its billions of dollar sightseeing. The hard corrosion control method provides a more durable solution than the soft corrosion control method. Revetment and breakwaters are semi-permanent infrastructure. These structures are not protected from normal wear and must be refurbished or rebuilt. The average life expectancy of the revetment is estimated to be 50 to 100 years, while the average life span of the revetment is 30 to 40 years. Because of their relative durability, these structures are believed to be the ultimate solution to erosion.