| 1 | MODULE ocealb |
|---|
| 2 | !!====================================================================== |
|---|
| 3 | !! *** MODULE ocealb *** |
|---|
| 4 | !! Ocean forcing: bulk thermohaline forcing of the ocean |
|---|
| 5 | !!===================================================================== |
|---|
| 6 | !! History : |
|---|
| 7 | !! NEMO 4.0 ! 2017-07 (C. Rousset) Split ocean and ice albedos |
|---|
| 8 | !!---------------------------------------------------------------------- |
|---|
| 9 | !! oce_alb : albedo for ocean (clear and overcast skies) |
|---|
| 10 | !!---------------------------------------------------------------------- |
|---|
| 11 | USE phycst ! physical constants |
|---|
| 12 | USE in_out_manager ! I/O manager |
|---|
| 13 | USE lib_mpp ! MPP library |
|---|
| 14 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
|---|
| 15 | |
|---|
| 16 | IMPLICIT NONE |
|---|
| 17 | PRIVATE |
|---|
| 18 | |
|---|
| 19 | PUBLIC oce_alb ! routine called by sbccpl |
|---|
| 20 | |
|---|
| 21 | !!---------------------------------------------------------------------- |
|---|
| 22 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
|---|
| 23 | !! $Id: ocealb.F90 10069 2018-08-28 14:12:24Z nicolasmartin $ |
|---|
| 24 | !! Software governed by the CeCILL license (see ./LICENSE) |
|---|
| 25 | !!---------------------------------------------------------------------- |
|---|
| 26 | CONTAINS |
|---|
| 27 | |
|---|
| 28 | SUBROUTINE oce_alb( palb_os , palb_cs ) |
|---|
| 29 | !!---------------------------------------------------------------------- |
|---|
| 30 | !! *** ROUTINE oce_alb *** |
|---|
| 31 | !! |
|---|
| 32 | !! ** Purpose : Computation of the albedo of the ocean |
|---|
| 33 | !!---------------------------------------------------------------------- |
|---|
| 34 | REAL(wp), DIMENSION(:,:), INTENT(out) :: palb_os ! albedo of ocean under overcast sky |
|---|
| 35 | REAL(wp), DIMENSION(:,:), INTENT(out) :: palb_cs ! albedo of ocean under clear sky |
|---|
| 36 | !! |
|---|
| 37 | REAL(wp) :: zcoef |
|---|
| 38 | REAL(wp) :: rmue = 0.40 ! cosine of local solar altitude |
|---|
| 39 | !!---------------------------------------------------------------------- |
|---|
| 40 | ! |
|---|
| 41 | zcoef = 0.05 / ( 1.1 * rmue**1.4 + 0.15 ) ! Parameterization of Briegled and Ramanathan, 1982 |
|---|
| 42 | palb_cs(:,:) = zcoef |
|---|
| 43 | palb_os(:,:) = 0.06 ! Parameterization of Kondratyev, 1969 and Payne, 1972 |
|---|
| 44 | ! |
|---|
| 45 | END SUBROUTINE oce_alb |
|---|
| 46 | |
|---|
| 47 | !!====================================================================== |
|---|
| 48 | END MODULE ocealb |
|---|
