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Merge pull request #41 from CliMA/he/isdac
ISDAC forcing
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,67 @@ | ||
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| # 825m: base of initial inversion | ||
| # 2045m: nominal domain top | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| function ISDAC_q_tot(::Type{FT}) where {FT} | ||
| z -> FT(if z < 400 | ||
| 1.5 - 0.00075 * (z - 400) | ||
| elseif 400 ≤ z < 825 | ||
| 1.5 | ||
| elseif 825 ≤ z < 2045 | ||
| 1.2 | ||
| else #2045 ≤ z | ||
| 0.5 - 0.000075 * (z - 2045) | ||
| end / 1000) # kg/kg | ||
| end | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| function ISDAC_θ_liq_ice(::Type{FT}) where {FT} | ||
| z -> FT(if z < 400 | ||
| 265 + 0.004 * (z - 400) | ||
| elseif 400 ≤ z < 825 | ||
| 265 | ||
| elseif 825 ≤ z < 2045 | ||
| 266 + (z - 825)^0.3 | ||
| else #2045 ≤ z | ||
| 271 + (z - 2000)^0.33 | ||
| end) # K | ||
| end | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| ISDAC_u(::Type{FT}) where {FT} = z -> FT(-7) # m/s | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| ISDAC_v(::Type{FT}) where {FT} = z -> FT(-2 + 0.003z) # m/s | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| ISDAC_subsidence(::Type{FT}) where {FT} = | ||
| z -> FT(z < 825 ? -5e-6z : -0.4125e-2) # m/s | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| ISDAC_tke(::Type{FT}) where {FT} = z -> FT(0.1) # m²/s² | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| function ISDAC_inv_τ_scalar(::Type{FT}) where {FT} | ||
| z₁ = 1200 # m | ||
| z₂ = 1500 # m | ||
| hr = 3600 # s | ||
| z -> FT(if z < z₁ | ||
| 0 | ||
| elseif z₁ ≤ z ≤ z₂ | ||
| 1 / hr * (1 - cos(π * (z - z₁) / (z₂ - z₁))) / 2 | ||
| else #z > z₂ | ||
| 1 / hr | ||
| end) # s⁻¹ | ||
| end | ||
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| """ [ovchinnikov_intercomparison_2014](@cite) """ | ||
| function ISDAC_inv_τ_wind(::Type{FT}) where {FT} | ||
| zᵤᵥ = 825 # m | ||
| hr = 3600 # s | ||
| z -> FT(if z ≤ zᵤᵥ | ||
| 1 / 2hr * (1 - cos(π * z / zᵤᵥ)) / 2 | ||
| else #z > zᵤᵥ | ||
| 1 / 2hr | ||
| end) # s⁻¹ | ||
| end |