1 subroutine da_radzicevar_sigma_in_abc(qg,fw,gsflag,sigma_in_abc)
2 !----------------------------------------------------------------------
3 ! purpose: calculate the standard deviation of canting angle
4 !----------------------------------------------------------------------
9 real,parameter :: pi=3.1415926
12 if(gsflag==1) then ! for snow
14 elseif(gsflag==2) then ! for graupel
16 sigma_in_abc=60.*a2a*(1-0.8*fw)
18 sigma_in_abc=60.*a2a*(1-4.*qg*1e3*fw)
22 end subroutine da_radzicevar_sigma_in_abc