Validation Experiment for Satellite Remote Sensing and Numerical Models of Low-Level Clouds : Shipboard Observation of YAMASE Clouds

摘要

[ABSTRACT] u27Yamase’ clouds are one of the typical marine boundary-layer clouds, and they appear over the North-Western Pacific Ocean east off the Sanriku area in early summer season under easterly cool winds, called Yamase, blown out from Okhotsk anti-cyclones. In order to validate numerical simulation and satellite remote sensing of Yamase clouds, we have carried out a few times of shipboard experiment in June of 2001, 2002, and 2003. Here we present an outline of the shipboard Yamase experiment and the preliminary results on atmospheric profiles and cloud structures for the Yamase event observed during 22 June through 24 June 2003.