Von Karman Eddies are counter-rotating cloud arrangements 

 do^vnwind from islands. As with Benard, use of von Karman' s name is a 

 convenient identification of the phenomenon. 



Bow Waves are the cloud distribution patterns resulting from 

 the clouds passing close to an island and are similar to waves produced 

 from the bow of a ship. 



Contrails are the distinct linear cloudlike features frequently 

 formed behind aircraft. 



The standard 8 x 10 inch, black and white photograph has 

 proven useful for distinguishing most features, however, the color 

 photograph is imperative for sun glitter, turbid water, or underwater 

 structure feature definition. Color and black and white prints both are 

 suitable for casual inspection and interpretation. Contact transparencies 

 of the 70-mm film are used for more detailed examination. These 

 transparencies can be viewed satisfactorily using a binocular microscope 

 magnifying up to about 15 diameters. 



A photograph depicting oceanographic features is included in 

 Section I of this Index for each of the Gemini flights and may be found 



VI 



