STRUCTURE OF THE TROPICAL BOUNDARY LAYER

Abstract

The temperature, humidity and wind fields of the tropical oceanic boundary layer are investi-gated by lower troposphere radiosondes (LTS). The experiment is a part of the MonsoonExperiment (MONEX) carried out on the R. V. Hakuho-Maru for two weeks in May, 1979.Two different weather situations, I.e., the disturbed and undisturbed periods were chosen toanalyze. The depth of the mixed layer is found to depend on the weather conditions. It developedup to several hundred meters under the undisturbed situations, but reached only a few hundredmeters during the disturbed period. The horizontal wind peak appeared in the stable layer rightabove the mixed layer. The latitudinal variations are also investigated.The temperature, humidity and wind fields of the tropical oceanic boundary layer are investi-gated by lower troposphere radiosondes (LTS). The experiment is a part of the MonsoonExperiment (MONEX) carried out on the R. V. Hakuho-Maru for two weeks in May, 1979.Two different weather situations, I.e., the disturbed and undisturbed periods were chosen toanalyze. The depth of the mixed layer is found to depend on the weather conditions. It developedup to several hundred meters under the undisturbed situations, but reached only a few hundredmeters during the disturbed period. The horizontal wind peak appeared in the stable layer rightabove the mixed layer. The latitudinal variations are also investigated