!----------------------------------------------------------------------- &nambfr ! bottom friction !----------------------------------------------------------------------- nn_bfr = 1 ! type of bottom friction : = 0 : free slip, = 1 : linear friction ! = 2 : nonlinear friction rn_bfri1 = 4.e-4 ! bottom drag coefficient (linear case) rn_bfri2 = 1.e-3 ! bottom drag coefficient (non linear case). Minimum coeft if ln_loglayer=T rn_bfri2_max = 1.e-1 ! max. bottom drag coefficient (non linear case and ln_loglayer=T) rn_bfeb2 = 2.5e-3 ! bottom turbulent kinetic energy background (m2/s2) rn_bfrz0 = 3.e-3 ! bottom roughness [m] if ln_loglayer=T ln_bfr2d = .false. ! horizontal variation of the bottom friction coef (read a 2D mask file ) rn_bfrien = 50. ! local multiplying factor of bfr (ln_bfr2d=T) rn_tfri1 = 4.e-4 ! top drag coefficient (linear case) rn_tfri2 = 2.5e-3 ! top drag coefficient (non linear case). Minimum coeft if ln_loglayer=T rn_tfri2_max = 1.e-1 ! max. top drag coefficient (non linear case and ln_loglayer=T) rn_tfeb2 = 0.0 ! top turbulent kinetic energy background (m2/s2) rn_tfrz0 = 3.e-3 ! top roughness [m] if ln_loglayer=T ln_tfr2d = .false. ! horizontal variation of the top friction coef (read a 2D mask file ) rn_tfrien = 50. ! local multiplying factor of tfr (ln_tfr2d=T) ln_bfrimp = .true. ! implicit bottom friction (requires ln_zdfexp = .false. if true) ln_loglayer = .false. ! logarithmic formulation (non linear case) /