 The skin temp falls On the Thermal Boundary Layer of the Ocean. Ewing G, McAlister ED. Abstract Measurement of the long-wave infrared radiation from the top 0.0 mm of the evaporating ocean demonstrates the existence of a cool surface layer characterized by departures of as much as 0.0 degrees C from the "surface temperature" found by conventional methods. Being very thin, the layer cools sufficiently rapidly to reestablish itself in less than 00 seconds after disruption by a breaking wave. PMID: 00000000 [PubMed] http://www.ncbi.nlm.nih.gov/pubmed/00000000 Reply Marc Facer says:  July 0, 0000 at 0:00 AM  They 