mo_gas_optics_constants Module
Physical and mathematical constants used in RRTMGP gas optics calculation
If the host model in which RRTGMP is embedded has defined these constants elsewhere
the model definitions can be used instead by renaming. For example,
use mo_model_constants, only k_boltz => boltzman_k, ...
where the syntax is local_name => original_name
and all the local names need to be defined
"Constants" specific to the earth's atmosphere should also be made consistent with the
host model but may be changed in a call to init_constants(), normally at initialization
Uses
-
- mo_rte_kind
-
Variables
| Type | Visibility | Attributes | Name | Initial | |||
|---|---|---|---|---|---|---|---|
| real(kind=wp), | public, | parameter | :: | R_univ_gconst | = | avogad*k_boltz | |
| real(kind=wp), | public, | parameter | :: | avogad | = | 6.02214076e23_wp | |
| real(kind=wp), | public, | parameter | :: | k_boltz | = | 1.380649e-23_wp | |
| real(kind=wp), | public, | parameter | :: | m_h2o | = | 0.018016_wp |
Subroutines
public subroutine init_constants(gravity, mol_weight_dry_air, heat_capacity_dry_air)
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=wp), | intent(in), | optional | :: | gravity | Planetary and atmospheric values used by RRTMGP in computing gas optical properties Default values reflect modern Earth but these can be changed using this routine |
|
| real(kind=wp), | intent(in), | optional | :: | mol_weight_dry_air | Planetary and atmospheric values used by RRTMGP in computing gas optical properties Default values reflect modern Earth but these can be changed using this routine |
|
| real(kind=wp), | intent(in), | optional | :: | heat_capacity_dry_air | Planetary and atmospheric values used by RRTMGP in computing gas optical properties Default values reflect modern Earth but these can be changed using this routine |