The Inversion Thermocline in the Western South Yellow Sea in April 2007
SU Jie
XIONG Xue-jun
LIU Hao
LU De-jie
Abstract：The 'five points and three elements' of inversion thermocline are obtained and the horizontal distribution of strength factors is plotted by using the temperature and salinity data measured in the western South Yellow Sea in April,2007 and by means of the marine stratification spectrum representation and the adaptive recognition.The analysis indicates that the occurrence of the inversion thermocline in the werstern South Yellow Sea is directly related to the water of the Yellow Sea Warm Current: 1) The surface cooling that the water of the Yellow Sea Warm Current was subjected to in April is still the universal reason that causes the formation of the inversion thermocline.In the study area,such kind of inversion thermocline occurs in the areas where the Yellow Sea Warm Current extends to the north and expands both sides and the position of the thermocline is shallow;2) In the main area of the Yellow Sea Warm Current further to the south,however,the effect caused by the sea surface cooling is offset by the heat supplement and the inversion thermocline becomes very weak and even disappears.This is the reason why the area of the inversion thermocline retreats northward and becomes absent near the southern central region in the month of April;3) The overlying of the southward cold water of the Lubei Coastal Current over the warm water of the Yellow Sea Warm Current makes the inversion thermocline strengthen,thus making the area of cold and warm water action become a strong inversion thermocline area;4) The front ends of both the cold coastal current water and the cold water located respectively at the left side and the right side of the Yellow Sea Warm Current wedge to the Yellow Sea Warm Current and often overlay above the high temperature and high salt water of the Yellow Sea Warm Current,forming a lower inversion thermocline.Thereby,a kind of double inversion thermocline forms.All these characteristics are more objective,comprehensive,detailed and accurate than what we have known before.
Keywords：marine stratification spectrum representation and adaptive recognitioninversion thermoclinethe Yellow Sea Warm Currenctstrong inversion thermoclinedouble inversion thermocline
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：11( 1-11 )