Beach Erosion

By:Kennedy Ballard and Cullen Yates

To determine the relative role of sea level rise on beach erosion within the islands of Hawaii, researchers at the University of Hawaii first compared erosion rates on Maui and Oahu, based on a combination of aerial photographs and seafloor topography data from within the past century. These analyses showed that Maui has eroded far more than Oahu has over this time period, retreating at an average rate of about 5 inches (13 centimeters) per year compared with Oahu's average rate of about 1 inch (3 cm) per year.




Big image
Big image
Big image
Big image
Big image

In addition to these local effects, global sea level rose an average of 2 millimeters (less than a tenth of an inch) per year over the past century, and has been implicated in beach erosion rates elsewhere in the world, including the East Coast of the United States. In recent years, this rate has accelerated to about 3 millimeters (0.1 inch) per year, potentially due to increasing sea surface temperatures induced by anthropogenic, or human-induced, climate change. This global increase in sea level is expected to compound the local rates of sea level rise in Hawaii in the coming century, posing increasing risks to coastal communities there, Romine said.

One main issue with beach erosion is that it gradully decreases the amount of beaches left due to ocean currents and wind. With the sand being swept away by the tide it leaves no stability for palm trees or other plants. Beach erosion has most affect on the West coast and in Florida. Crustaceans are affected greatly by beach erosion. Beach erosion has not affected the League City area very much. People are partially affected by beach erosion because they dont have room on the beach to do the activities that we like to do at the beach. To prevent this from happening, people have built seawalls. An idea that could be implemented is to built a dam-like curb before you enter the water.