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2015年东黄海海表温度季节变化分析
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摘要
本文利用MODIS反演的海表温度数据以及东黄海区表面温度历史数据等,对2015年在25°~40°N、120°~128°E范围内的东海及黄海部分海域表层水温状况进行了分析和研究。结果表明:1、2015年东黄海表层水温的最大值超过35℃,于8月出现在福建沿岸海域,表层水温的最小值于1月出现在黄海北部,约为-2~-1℃;2、2015年1-7月,大部分暖流代表区域海表温度略有偏低,而沿岸流代表区域偏高,8-9月各水团代表海域海表温度变化较小,10-12月大部分海域海表温度偏高,尤其在10月,暖流海域温度偏高约1.5℃,沿岸流海域温度偏高约3℃左右;3、研究海域在5-6月增温最快,温度上升迅速,是引发赤潮的重要原因之一。
In this paper, sea surface temperature(SST) in East China Sea(ECS) in 2015 retrieved from MODIS data and history data of SST in ECS were used to analyze the distribution of SST in25°~40°N, 120°~128°E. The results showed that: a) The maximum value of SST in ECS in2015 is over than 35℃, it appeared in the coast of Fujian. The minimum value of SST in ECS in2015 is-2~-1 ℃, it appeared in north of Yellow Sea in January. b) SST was slightly lower than normal in most of the warm currents while it was higher in coastal currents in January to July in2015.The change of SST for most water mass is smaller in August to September. SST was higher than normal in October to December,especially in October,the SST of warm current is about1.5 ℃ higher, and 3 ℃ higher for coastal current. c) SST rose rapidly in research area in May and June, it is one of the important reason of outbreaks of algal blooms.
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