Journal of Tropical Oceanography ›› 2012, Vol. 31 ›› Issue (2): 41-46.doi: 10.11978/j.issn.1009-5470.2012.02.006cstr: 32234.14.j.issn.1009-5470.2012.02.006

• Marine Geomorphology • Previous Articles     Next Articles

Current situation and causes of coastal erosion in eastern Moyang River Estuary

ZHANG Fan1,2, ZHAN Wen-huan1, YAO Yan-tao1, SUN Jie1, ZHAN Mei-zhen1,2   

  1. 1. Key Laboratory of Marginal Sea Geology of Chinese Academy of Sciences , South China Sea Institute of Oceanology , Guangzhou 510301, China 2. Graduate University of Chinese Academy of Sciences , Beijing 100049, China
  • Received:2010-10-20 Revised:2010-12-24 Online:2012-06-05 Published:2012-06-05

Abstract: This paper deals with the coastal erosion problems around the eastern Moyang River Estuary. The changes of coastline and coastal landforms were studied by comparing old and new aerial photographs and topographic maps, as well as through repeated field observations and local measurements regarding erosion processes. From these studies, the coastline of eastern Moyang River Estuary subjects to serious coastal erosion at an average annual rate of 15 m. The dynamic change of the coastal landforms profiles shows that the erosion or deposition differs from season to season. After the landfall of Typhoon Hagupit, the coastline retreated dramatically and the topography was changed. Through the analysis of characters of costal erosion, it was concluded that the storm surge had serious implications for coastal erosion of this area, and that the condition of erosion or deposition responded to the change of seasons as well.

Key words: coastal erosion, coastal landform, storm, Moyang River

CLC Number: 

  • P737.1