Summation Layer Amount: The amount of sky cover for each layer is given in eighths of sky cover attributable to clouds or obscurations. The summation amount for any given layer is equal to the sum of the sky cover for the layer being evaluated plus the sky cover for all lower layers, including partial obscuration. A summation amount for a layer can not exceed 8/8ths.

 

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Summation Layer Amount: The amount of sky cover for each layer is given in eighths of sky cover attributable to clouds or obscurations. The summation amount for any given layer is equal to the sum of the sky cover . . . View Full Definition

QuickTime Player: A multimedia technology developed by Apple Computer. Developed to display video, sound, animation, graphics, text, music and 360 degree virtual reality (VR) scenes. Apple makes its QuickTime . . . View Full Definition

Real Player: Developed by RealNetworks, this is a cross-platform multi-media player.

Seamount: A mountain on the sea floor that has at least 1000 meters of local relief. Most seamounts are shield volcanoes. (See also Guyot.)