Accession Number : AD0654993

Title :   SPACIAL AND TEMPORAL DISTRIBUTION OF THE GRADIENT RICHARDSON NUMBER IN THE SURFACE AND PLANETARY LAYERS,

Corporate Author : ATMOSPHERIC SCIENCES LAB WHITE SANDS MISSILE RANGE N MEX

Personal Author(s) : Hansen,Frank V.

Report Date : MAY 1967

Pagination or Media Count : 30

Abstract : The Richardson number (Ri) as a function of height, time and stability classification method has been investigated by the use of wind and temperature profiles observed in the surface and planetary boundary layers. It was found that a reference height of three to six meters above the surface provides the best estimate of the Richardson number in respect to the energy balance of the air-earth interface. Further investigation revealed that nearly all boundary layer processes can be related to the Richardson number including a hypothesis in the form of wind and temperature profiles for a diabatic surface boundary layer. (Author)

Descriptors :   (*ATMOSPHERIC MOTION, TURBULENCE), BOUNDARY LAYER, STABILITY, WIND, ATMOSPHERIC TEMPERATURE, MATHEMATICAL ANALYSIS

Subject Categories : Atmospheric Physics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE