subroutine SetAlbedoLandOceanContrast( xy_SurfCond, xy_SurfAlbedo )

    ! モジュール引用 ; USE statements
    !

    ! 格子点設定
    ! Grid points settings
    !
    use gridset, only: imax, jmax, kmax    ! 鉛直層数.
                               ! Number of vertical level


    integer , intent(in   ) :: xy_SurfCond  ( 0:imax-1, 1:jmax )
    real(DP), intent(inout) :: xy_SurfAlbedo( 0:imax-1, 1:jmax )

    ! 作業変数
    ! Work variables
    !
    integer:: i               ! 経度方向に回る DO ループ用作業変数
                              ! Work variables for DO loop in longitude
    integer:: j               ! 緯度方向に回る DO ループ用作業変数
                              ! Work variables for DO loop in latitude

    ! 初期化確認
    ! Initialization check
    !
    if ( .not. surface_properties_landoceancontrast_inited ) then
      call MessageNotify( 'E', module_name, 'This module has not been initialized.' )
    end if


    do j = 1, jmax
      do i = 0, imax-1

        if( xy_SurfCond(i,j) == 0 ) then
          xy_SurfAlbedo(i,j) = AlbedoOcean
        else
          xy_SurfAlbedo(i,j) = AlbedoLand
        end if

      end do
    end do


  end subroutine SetAlbedoLandOceanContrast

  subroutine SetRoughLenLandOceanContrast( xy_SurfCond, xy_RoughLen )

    ! モジュール引用 ; USE statements
    !

    ! 格子点設定
    ! Grid points settings
    !
    use gridset, only: imax, jmax, kmax    ! 鉛直層数.
                               ! Number of vertical level


    integer , intent(in   ) :: xy_SurfCond( 0:imax-1, 1:jmax )
    real(DP), intent(inout) :: xy_RoughLen( 0:imax-1, 1:jmax )

    ! 作業変数
    ! Work variables
    !
    integer:: i               ! 経度方向に回る DO ループ用作業変数
                              ! Work variables for DO loop in longitude
    integer:: j               ! 緯度方向に回る DO ループ用作業変数
                              ! Work variables for DO loop in latitude

    ! 初期化確認
    ! Initialization check
    !
    if ( .not. surface_properties_landoceancontrast_inited ) then
      call MessageNotify( 'E', module_name, 'This module has not been initialized.' )
    end if


    do j = 1, jmax
      do i = 0, imax-1

        if( xy_SurfCond(i,j) == 0 ) then
          xy_RoughLen(i,j) = RoughLenOcean
        else
          xy_RoughLen(i,j) = RoughLenLand
        end if

      end do
    end do


  end subroutine SetRoughLenLandOceanContrast

  subroutine SurfacePropertiesLandOceanContrastInit

    ! モジュール引用 ; USE statements
    !

    ! 種別型パラメタ
    ! Kind type parameter
    !
    use dc_types, only: STDOUT ! 標準出力の装置番号. Unit number of standard output

    ! ファイル入出力補助
    ! File I/O support
    !
    use dc_iounit, only: FileOpen

    ! NAMELIST ファイル入力に関するユーティリティ
    ! Utilities for NAMELIST file input
    !
    use namelist_util, only: namelist_filename, NmlutilMsg

    ! 作業変数
    ! Work variables
    !
    integer:: unit_nml        ! NAMELIST ファイルオープン用装置番号.
                              ! Unit number for NAMELIST file open
    integer:: iostat_nml      ! NAMELIST 読み込み時の IOSTAT.
                              ! IOSTAT of NAMELIST read

    ! NAMELIST 変数群
    ! NAMELIST group name
    !
    namelist /surface_properties_landoceancontrast_nml/ AlbedoLand, AlbedoOcean, RoughLenLand, RoughLenOcean

          ! デフォルト値については初期化手続 "surface_properties_landoceancontrast#SurfacePropertiesLandOceanContrastInit"
          ! のソースコードを参照のこと.
          !
          ! Refer to source codes in the initialization procedure
          ! "surface_properties_landoceancontrast#SurfacePropertiesLandOceanContrastInit" for the default values.
          !

    if ( surface_properties_landoceancontrast_inited ) return



    ! デフォルト値の設定
    ! Default values settings
    !

    AlbedoLand    = 0.3d0
    AlbedoOcean   = 0.1d0
    RoughLenLand  = 1.0d-1
    RoughLenOcean = 1.0d-4


    ! NAMELIST の読み込み
    ! NAMELIST is input
    !
    if ( trim(namelist_filename) /= '' ) then
      call FileOpen( unit_nml, namelist_filename, mode = 'r' ) ! (in)

      rewind( unit_nml )
      read( unit_nml, nml = surface_properties_landoceancontrast_nml, iostat = iostat_nml )
      close( unit_nml )

      call NmlutilMsg( iostat_nml, module_name ) ! (in)
      if ( iostat_nml == 0 ) write( STDOUT, nml = surface_properties_landoceancontrast_nml )
    end if


    ! 印字 ; Print
    !
    call MessageNotify( 'M', module_name, '----- Initialization Messages -----' )
    call MessageNotify( 'M', module_name, 'AlbedoLand    = %f', d = (/ AlbedoLand /) )
    call MessageNotify( 'M', module_name, 'AlbedoOcean   = %f', d = (/ AlbedoOcean /) )
    call MessageNotify( 'M', module_name, 'RoughLenLand  = %f', d = (/ RoughLenLand /) )
    call MessageNotify( 'M', module_name, 'RoughLenOcean = %f', d = (/ RoughLenOcean /) )
    call MessageNotify( 'M', module_name, '-- version = %c', c1 = trim(version) )


    surface_properties_landoceancontrast_inited = .true.

  end subroutine SurfacePropertiesLandOceanContrastInit