Study on the effect of short-term variations in the upper ocean on the atmosphere

我们研究了日本周围西北太平洋上层海洋的短期变化及其对大气的影响。对卫星资料的分析表明，表层叶绿素a的快速增加和海面温度(SST)的快速下降往往发生在冲绳和本州以南，以及气旋经常经过的黑潮-Oyashio延伸区。我们还利用海-气耦合区域模式进行了数值试验，结果表明，海温的日变化可以改变百年降水和台风的强度。

We investigated short-term variations of the upper ocean and their impacts on the atmosphere in the northwestern Pacific Ocean around Japan. It was revealed from an analysis of satellite data that the surface chlorophyll-a quick increase events with quick sea surface temperature (SST) drop tended to occur south of Okinawa and Honshu, and in the Kuroshio-Oyashio Extention region, where cyclones often pass. We also performed numerical experiments by using an ocean-atmosphere coupled regional model, and shown that the diurnal variation of SST can modify precipitation in the Baiu season and the intensity of a typhoon.