Open AccessSea level variations of Zhejiang province, China
Author(s) -
Hanjie Zhu,
M. V. Subrahmanyam,
Qiyan Ji
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/6/062051
Subject(s) - china , bay , sea surface temperature , climatology , environmental science , geography , positive correlation , negative correlation , oceanography , physical geography , geology , archaeology , medicine
This paper shows the sea level variations (SL) over zhejiang province, china. Using Sea surface height data which obtained from the European Centre for Medium-Range Weather Forecasting (ECMWF) and Sea surface temperature (SST) data to validate the correlation of them. Monthly, seasonal, annual and decadal variations of SL over ZJ and its subareas are presented and discussed in this research. SL shows an increasing trend on the whole. However, there is a decreasing trend between the years of 1975 and 1987, then SL shows increase. Over the ZJ province, the rising rate of SL is 0.343cm/a from the year of 1958 to 1975 and the rising rate of SL is 0.238cm/a after the year of 1987. The overall rising rate of SL in the ZJ province is 0.172cm/a from the year of 1958 to 2015, then we can also find that the dropping rate is 0.264cm/a from the year of 1975 to 1987. The Maximum SL height of ZJ province is in 2012. Further SL variations have been done over the ZJ province which includes Hangzhou Bay (HZB), Ningbo (NB), Zhoushan (ZS), Shengsi (SS) and Wenzhou (WZ) areas. We have checked the steric effect with SST on SL. It was found that there was a positive correlation (CC = 0.77) between SL and sea surface temperature (SST), and the same correlation was observed in other areas of Zhejiang Province.