Ocean front effects on development and maintenance of the synoptic low pressure and its feedback to the ocean surface layers.

本文研究了日本南部沿着黑潮-黑潮延伸区海表温度锋区的海气效应。在锋面上存在一个楔形的低海平面气压，沿锋面沿着有强烈的地面热通量。在数值试验中，由指定的SST和锋强迫的模式成功地再现了观测特征。相比之下，由平滑SST强迫的模型未能再现这些特征。这些观测和数值结果表明，海洋的热释放使低层大气升温，并在该区域形成海平面气压极小值，这是由于海洋的静力调整作用。

Ocean-to-atmosphere effects are examined in the sea surface temperature (SST) frontal region along Kuroshio-Kuroshio Extension south of Japan. A wedge-shaped low sea level pressure (SLP) is found over the region with intense surface heat fluxes along the front. In the numerical experiments, the model forced by the prescribed SST with the front successfully reproduced the observed features. By contrast, the model forced by the smoothed SST failed to reproduce the features. These observational and numerical results show that the heat release from the ocean warms up the lower atmosphere and then form SLP minimum over that region as the hydrostatic adjustments.