1991年1月奄美大島における下層雲と境界層の観測結果について

Abstract

To investigate the structure of subcloud layer of the maritime low-level clouds with interests on the process of formation and maintenance of these clouds, ground-based observation was made on Amami Island in January 1991. For the analyzed period (25-27 January), the variation of cloud amount, the height of mixed layer and the height of cloud base were observed. Furthermore, the feature of subcloud layer changed within these days. Especially on 26th, both standard deviation of vertical wind speed (σw) and wind shear (Su) increased abruptly.