lw_solver_2stream Interface
interface
Longwave two-stream calculation: - combine RRTMGP-specific sources at levels - compute layer reflectance, transmittance - compute total source function at levels using linear-in-tau - transport
public subroutine lw_solver_2stream(ncol, nlay, ngpt, top_at_1, tau, ssa, g, lay_source, lev_source, sfc_emis, sfc_src, inc_flux, flux_up, flux_dn) bind(C, name="0")
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer, | intent(in) | :: | ncol | Number of columns, layers, g-points |
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| integer, | intent(in) | :: | nlay | Number of columns, layers, g-points |
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| integer, | intent(in) | :: | ngpt | Number of columns, layers, g-points |
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| logical(kind=wl), | intent(in) | :: | top_at_1 | ilay = 1 is the top of the atmosphere? |
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| real(kind=wp), | intent(in), | dimension(ncol,nlay, ngpt) | :: | tau | Optical thickness, single-scattering albedo, asymmetry parameter [] |
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| real(kind=wp), | intent(in), | dimension(ncol,nlay, ngpt) | :: | ssa | Optical thickness, single-scattering albedo, asymmetry parameter [] |
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| real(kind=wp), | intent(in), | dimension(ncol,nlay, ngpt) | :: | g | Optical thickness, single-scattering albedo, asymmetry parameter [] |
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| real(kind=wp), | intent(in), | dimension(ncol,nlay, ngpt) | :: | lay_source | Planck source at layer average temperature [W/m2] |
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| real(kind=wp), | intent(in), | dimension(ncol,nlay+1,ngpt) | :: | lev_source | Planck source at layer edge for radiation [W/m2] |
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| real(kind=wp), | intent(in), | dimension(ncol, ngpt) | :: | sfc_emis | Surface emissivity [] |
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| real(kind=wp), | intent(in), | dimension(ncol, ngpt) | :: | sfc_src | Surface source function [W/m2] |
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| real(kind=wp), | intent(in), | dimension(ncol, ngpt) | :: | inc_flux | Incident diffuse flux, probably 0 [W/m2] |
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| real(kind=wp), | intent(out), | dimension(ncol,nlay+1,ngpt) | :: | flux_up | Fluxes [W/m2] |
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| real(kind=wp), | intent(out), | dimension(ncol,nlay+1,ngpt) | :: | flux_dn | Fluxes [W/m2] |