Abstract
The sensible and latent heat fluxes are estimated with the data of the aboard-ship observation on the Inland Sea in summer by the graphical technique of the bulk aerodynamic method based on Kondo's (1975) proposals except for the adoption of Charnock's law on the sea surface roughness. The estimated sensible and latent heat fluxes are large in the early morning and very small in the afternoon. The flux values derived here are checked with the foregoing studies.