Evaluation of Wind and Solar Insolation Influence on Ocean Near-Surface Temperature from In Situ Observations and the Geostationary Himawari-8 Satellite

The skin sea surface temperature (SST) observed by the geostationary Himawari-8 satellite and bulk SST, including four in situ observations from ships, drifters, Argo, buoys constitute more than 90,000 SST pairs used to analyze near-surface variations. From July 2015 May 2022, an average bias of 0.10 °C root mean square error 0.99 were waters adjacent Taiwan. This study effectively that effect generated ocean wind solar shortwave radiation caused occurrence a cool layer diurnal warm (DWL), 90% was range −1.55~1.71 °C. In daytime, received radiation, thus increasing causing DWL. With increase insolation, DWL became obvious. During winter, strong wind, or low may disappear turn into layer. At night, dominated effect, but daytime would remain if speed weak. However, different hydrological characteristics observation position its distance coast could affect results effect. Whether there is rapid change stratification spatial grid nearly kilometers needs be explored future.