Clustering Analysis of Hydrologic Type in Coastal Zone

Abstract

By the analyzing of Q cluster and characteristic factor matrix, coastal hydrological types and their distributions are found by selecting 7 characteristic factors in 26 districts of the China coastal zone. In the view of environmental hydrology and marine engineering, the distribution types of coastal zone are mainly divided into sedimentary coast (including sandy coast, muddy coast, strongly hydrodynamic coast) and rocky coast (including massive bedrock coast, grit bedrock coast, bank slope and platform coast). The formation, development and evolution of the coastal zone are mainly controlled by the land geologic actions, particularly by tectonism and hydraulic condition, and the ocean geologic actions only take part in the modification of the coastal features. The topography and lithology are mainly controlled by distribution of land water flow in coastal zone.