If vertical thermal diffusivity in neutrally stratified water 



l( von-Karman constant 



L reference length in the horizontal direction; 

 also Monin-Obukhov similarity length 



m integer 



m m ,m coefficients used in defining 41 ,4 , and 4 



1*23 123 



N Brunt-Vaisala period; also collision rate 



n Mannings' n 



n , n number density of sediment particles 



p pressure in water 



p atmospheric pressure 



Pr Prandtl number 



Pr vertical Prandtl number 



q square root of twice the turbulent kinetic energy 



r radius of particles 



Pj. critical radius of particles 



r radius of collision cylinder 



Rj, hydrodynamic resistance to deposition 



Rg sublayer resistance 



Ri Richardson number 



Ro Rossby number 



S salinity; also source term 



Sc Schmidt number 



XV 



