β Scribed by Ramalingam Norris
No coin nor oath required. For personal study only.
The problem of evaporation from large expanses of water is of fundamental importance. The evaporation from oceans is of importance in studying the amount of water vapour which an air mass receives while flowing over the ocean. Among recent investigations on the problem of evaporation may be mentioned in particular those of Sverdrup (1936), Millar (1937), and Montgomery (1940). But the final conclusive results of these authors differ very much from each other. For instance, Sverdrup (1937β8) concludes that the evaporation from a hydrodynamically rough surface must be twice as great as that from a smooth surface, while Montgomery infers it to be about the same in both cases. The question is reconsidered below, the work of these authors being followed to a certain extent, but not entirely. The differences are emphasised wherever necessary. The present investigation leads to the result that the evaporation from a hydrodynamically rough surface must be about four times as great as that to be expected from a smooth surface of water.
π SIMILAR VOLUMES
IN THIS note, an investigation of the mechanism and rate of evaporation of water drops from a "Teflon" surface is reported. The drop was placed on an adjustable stage in a transparent plastic chamber which was maintained at constant humidity by means of salt solutions. A parallel light beam illumina
A laboratory system has been developed to simulate wave-induced irradiance fluctuations that occur in the top few metres of the sea under sunny surface conditions. A principle of operation is that the fluctuations are produced after refraction of light by water waves generated in the tank. Simulated