@article{oai:ir.kagoshima-u.ac.jp:00004852, author = {TAKAHASHI, Tadao}, journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University}, month = {2016-10-28}, note = {Observed data — wind speed, temperature, and vapour pressure at 5 levels above the sea surface up to the 400cm height, evaporation from the sea surface, and wind wave elements — obtained at Kagoshima Bay during 1953-1956 are given in Part I. In Part II, it is concluded that the layer of hydrodynamically smooth flow, surmounted with the hydrodynamically rough flow of land origin, exsists always near by the sea surface, and that the thickness (h) of the lower layer of smooth flow can be expressed by a rough empirical formula of h≒a√t, where t is progressive time (ratio of fetch and wind speed at 400cm height) and a is a constant depending upon stability condition, i.e. a=3.1 (under stable condition)~20.0 (under strong instability). The critical values of friction velocity for the first formation of wind waves and the generation of whitecaps are determined empirically as 3.7cm/sec and 17cm/sec respectively in Part III ; and humidity profiles and evaporation from the sea surface are discussed in Part IV.}, pages = {1--46}, title = {Micro-meteorological Observations and Studies over the Sea}, volume = {6}, year = {} }