Cloud drop effective radius
The cloud drop effective radius (alternatively cloud effective radius or effective radius) is a weighted mean of the size distribution of cloud droplets. The term was defined in 1974 by James E. Hansen and Larry Travis as the ratio of the third to the second moment of a droplet size distribution to aid in the inversion of remotely sensed data. Physically, it is an area weighted radius of the cloud drop particles.
Mathematically, this can be expressed as .
- "Cloud Effective Radius". Goddard Earth Sciences Data and Information Services Center. Retrieved 3 August 2009.[dead link]
- Hansen., J.E and L.D. Travis (1974). "Light scattering in planetary atmospheres". Space Science Reviews (Springer Netherlands) 16 (4): 527–610. Bibcode:1974SSRv...16..527H. doi:10.1007/BF00168069.
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