抄録
Characteristics of sea-breeze fronts are investigated by field research and laboratory experiments. Field research was conducted at the Kasumigaura Lake where a sea-breeze front shows its plane figure through water surface ripples. Experiments were carried out using water tank with heating device below the inland part. Both front structures observed at the field and the laboratory water tank are closely similar to each other. A consideration is given to the celerity of sea-breeze front as a function of the initial density gradient and the density flux from the bottom.
