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parcel homogeneous freezing is linear by default #371

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Apr 16, 2024
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parcel homogeneous freezing is linear by default #371

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13 changes: 1 addition & 12 deletions parcel/ParcelTendencies.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -169,18 +169,7 @@ function homogeneous_freezing(params::ABHOM, PSD, state)
e = eᵥ(qᵥ, p_air, R_air, Rᵥ)

Δa_w = CMO.a_w_eT(tps, e, T) - CMO.a_w_ice(tps, T)

if Δa_w < ips.homogeneous.Δa_w_min
@warn(
"Δa_w for Homogeneous freezing less than minimum. No freezing will occur."
)
return FT(0)
elseif Δa_w > ips.homogeneous.Δa_w_max
@warn("Clipping Δa_w to max Δa_w for Homogeneous freezing.")
Δa_w = ips.homogeneous.Δa_w_max
end

J = CMI_hom.homogeneous_J_cubic(ips.homogeneous, Δa_w)
J = CMI_hom.homogeneous_J_linear(ips.homogeneous, Δa_w)

return min(max(FT(0), J * Nₗ * PSD.Vₗ), Nₗ / const_dt)
end
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