抄録
Wind and wave data observed at a coastal tower are analyzed to investigate wave dependence
of the sea-surface wind stress. The eddy correlation method is utilized to derive the wind stress
from wind velocity components measured by a sonic anemometer. Only the data which satisfied
criteria for the near-neutral stratification, the local equilibrium between wind and waves, and the
aerodynamically rough flow, were selected.
In a composite data set collected from previous studies, there has existed lack of data at a range
of wave age between laboratory and open ocean waves. It is shown that the present data set fill the
gap and make it possible for us to discuss continuity from laboratory to open ocean. Distribution
of the data points shows consistent trend with the composite data set including data from labora
tory experiments to open sea observations, and also with proposed formula indicating positive
dependence of the wind stress on the wave age. Systematic differences from the formula indicat
ing negative dependence deduced from field data sets by previous studies are discernible.
