! This SUBROUTINE estimateis Sea Salt emission fluxes over
! Oceanic surfaces.
!
SUBROUTINE seasalt(v_10m, u_10m, pct_ocean, lmt_sea_salt)

  USE dimphy
  IMPLICIT NONE
  !
  INCLUDE "dimensions.h"
  INCLUDE "chem.h"
  INCLUDE "chem_spla.h"
  INCLUDE "YOMCST.h"
  INCLUDE "YOECUMF.h"
  !
  INTEGER :: i, bin                 !local variables
  REAL :: pct_ocean(klon)           !hfraction of Ocean in each grid
  REAL :: v_10m(klon), u_10m(klon)  !V&H components of wind @10 m
  REAL :: w_speed_10m(klon)         !wind speed at 10m from surface
  REAL :: lmt_sea_salt(klon, ss_bins)!sea salt emission flux - mg/m2/s
  REAL :: sea_salt_flux(ss_bins)    !sea salt emission flux per unit wind speed

  REAL :: wind, ocean
  !
  !------Sea salt emission fluxes for each size bin calculated
  !------based on on parameterisation of Gong et al. (1997).
  !------Fluxes of sea salt for each size bin are given in mg/m^2/sec
  !------at wind speed of 1 m/s at 10m height (at 80% RH).
  !------Fluxes at various wind speeds (@10 m from sea
  !------surfaces are estimated using relationship: F=flux*U_10^3.14
  !
  !nhl for size bin of 0.03-0.5 and 0.5-20
  DATA sea_salt_flux/4.5E-09, 8.7E-7/

  DO i = 1, klon
    w_speed_10m(i) = (v_10m(i)**2.0 + u_10m(i)**2.0)**0.5
  ENDDO
  !
  DO bin = 1, ss_bins
    wind = 0.0
    ocean = 0.0
    DO i = 1, klon
      lmt_sea_salt(i, bin) = sea_salt_flux(bin) * (w_speed_10m(i)**3.41) &
              * pct_ocean(i) * 1.e-4 * 1.e-3                       !g/cm2/s
      wind = wind + w_speed_10m(i)
      ocean = ocean + pct_ocean(i)
    ENDDO
    ! print *,'Sea Salt flux = ',sea_salt_flux(bin)
  ENDDO
  ! print *,'SUM OF WIND = ',wind
  ! print *,'SUM OF OCEAN SURFACE = ',ocean

END SUBROUTINE seasalt