| [4213] | 1 | !---------------------------------------------------------------------- |
|---|
| 2 | ! NEMO system team, System and Interface for oceanic RElocable Nesting |
|---|
| 3 | !---------------------------------------------------------------------- |
|---|
| 4 | ! |
|---|
| 5 | ! DESCRIPTION: |
|---|
| 6 | !> @brief This module defines physical constant. |
|---|
| [12080] | 7 | !> |
|---|
| [4213] | 8 | !> @author |
|---|
| 9 | !> J.paul |
|---|
| 10 | ! REVISION HISTORY: |
|---|
| [5037] | 11 | !> @date November, 2013 - Initial Version |
|---|
| [6393] | 12 | !> @date September, 2015 |
|---|
| 13 | !> - add physical constant to compute meshmask |
|---|
| [12080] | 14 | !> @date January, 2019 |
|---|
| 15 | !> - half reduce epsilon value |
|---|
| 16 | !> |
|---|
| 17 | !> @note Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
|---|
| [4213] | 18 | !---------------------------------------------------------------------- |
|---|
| 19 | MODULE phycst |
|---|
| [12080] | 20 | |
|---|
| [4213] | 21 | USE kind ! F90 kind parameter |
|---|
| 22 | |
|---|
| 23 | IMPLICIT NONE |
|---|
| 24 | ! NOTE_avoid_public_variables_if_possible |
|---|
| 25 | |
|---|
| [5037] | 26 | PUBLIC :: dp_pi !< pi |
|---|
| 27 | PUBLIC :: dp_eps !< epsilon value |
|---|
| [6393] | 28 | PUBLIC :: dp_rearth !< earth radius [m] |
|---|
| [13369] | 29 | PUBLIC :: dp_deg2rad !< degree to radian ratio |
|---|
| 30 | PUBLIC :: dp_rad2deg !< radian to degree ratio |
|---|
| 31 | PUBLIC :: dp_delta !< |
|---|
| 32 | PUBLIC :: dp_omega !< earth rotation parameter [s-1] |
|---|
| [6393] | 33 | PUBLIC :: dp_day !< day [s] |
|---|
| 34 | PUBLIC :: dp_siyea !< sideral year [s] |
|---|
| 35 | PUBLIC :: dp_siday !< sideral day [s] |
|---|
| [4213] | 36 | |
|---|
| [7646] | 37 | REAL(dp), PUBLIC :: rday = 24.*60.*60. !: day [s] |
|---|
| 38 | REAL(dp), PUBLIC :: rsiyea !: sideral year [s] |
|---|
| 39 | REAL(dp), PUBLIC :: rsiday !: sideral day [s] |
|---|
| [6393] | 40 | |
|---|
| [5037] | 41 | REAL(dp), PARAMETER :: dp_pi = 3.14159274101257_dp |
|---|
| [7646] | 42 | REAL(dp), PARAMETER :: dp_eps = 0.5 * EPSILON(1._dp) |
|---|
| [12080] | 43 | REAL(dp), PARAMETER :: dp_rearth = 6371229._dp !m |
|---|
| [5037] | 44 | REAL(dp), PARAMETER :: dp_deg2rad = dp_pi/180.0 |
|---|
| [5609] | 45 | REAL(dp), PARAMETER :: dp_rad2deg = 180.0/dp_pi |
|---|
| [5037] | 46 | |
|---|
| [13369] | 47 | REAL(dp), PARAMETER :: dp_day = 24.*60.*60. |
|---|
| [7646] | 48 | REAL(dp), PARAMETER :: dp_siyea = 365.25_dp * dp_day * & |
|---|
| 49 | & 2._dp * dp_pi / 6.283076_dp |
|---|
| 50 | REAL(dp), PARAMETER :: dp_siday = dp_day / ( 1._dp + dp_day / dp_siyea ) |
|---|
| [6393] | 51 | |
|---|
| [12080] | 52 | REAL(dp), PARAMETER :: dp_delta=1.e-6 |
|---|
| [6393] | 53 | REAL(dp), PARAMETER :: dp_omega= 2._dp * dp_pi / dp_siday |
|---|
| [12080] | 54 | |
|---|
| [4213] | 55 | END MODULE phycst |
|---|
| 56 | |
|---|
