AttenuationScatCoeff
Scattering coefficient of a spherical
particle. From Doviak and Zrnic (1993), Eqn 3.14a or Battan (1973), Eqn 6.5
AttenuationScatCoeff(D, lam, m)
Doviak, R.J. and Zrnić, D.S., 1993 Doppler radar and weather observations, Academic Press
Louis J. Battan, 1973 Radar Observation of the Atmosphere University of Chicago Press