CanopyRadiativeTransfer

lidf_cdf(lidf::VerhoefLIDF{FT}, θ::FT) where {FT<:AbstractFloat}

Return the cumulative distribution frequency, given

• lidf VerhoefLIDF type algorithm
• θ Leaf inclination angle in [°]

inclination_angles!(can::Union{BroadbandSLCanopy{FT}, HyperspectralMLCanopy{FT}}, lidf::VerhoefLIDF{FT}) where {FT<:AbstractFloat}

Update the frequency of leaf inclination angles, given

• can HyperspectralMLCanopy type multiple layer canopy
• lidf VerhoefLIDF type algorithm

clumping_index!(can::HyperspectralMLCanopy, angles::SunSensorGeometry{FT}) where {FT<:AbstractFloat}

Update the clumping index, given

• can HyperspectralMLCanopy type canopy
• angles SunSensorGeometry type angles

soil_albedo!(can::HyperspectralMLCanopy{FT}, soil::Soil{FT}) where {FT<:AbstractFloat}

Updates lower soil boundary reflectance, given

• can HyperspectralMLCanopy type struct
• soil Soil type struct

This function compute the extinction coefficients for direct and diffuse radiation for given leaf inclination. Supported methods are to

• Compute the coefficient for given direct solar zenith angle (SZA) and leaf inclination angle (LIA)
• Compute the coefficient for diffuse light at given LIA
• Compute the coefficients for given sun-sensor geometry

extinction_coefficient(sza::FT, lia::FT) where {FT<:AbstractFloat}

Return the extinction coefficient for direct radiation, given

• sza Solar zenith angle in °
• lia Leaf inclination angle in °

extinction_coefficient(lia::FT) where {FT<:AbstractFloat}

Return the extinction coefficient for diffuse radiation (unifrom 18 average angles from 2.5° to 87.5°), given

• sza Solar zenith angle in °

extinction_coefficient(sza::FT, vza::FT, raa::FT, lia::FT) where {FT<:AbstractFloat}

Return the extinction and scattering coefficients (extinction coefficients from solar and viewing directions, and scattering coefficients for backward and forward directions, and some sin and cos products: _Co, _Cs, _So, _Ss), given

• sza Solar zenith angle in °
• vza Viewing zenith angle in °
• raa Relative azimuth angle in °
• lia Leaf inclination angle in °

This function updates the extinction (and scattering) coefficients for canopy. Supported methods are to

• Update coefficients for broadband single layer canopy
• Update coefficients for hyperspectral mutiple layers canopy

extinction_scattering_coefficients!(can::BroadbandSLCanopy{FT}, angles::SunSensorGeometry{FT}) where {FT<:AbstractFloat}

Update the extinction and scattering coefficients, given

• can BroadbandSLCanopy type canopy
• angles SunSensorGeometry type angles

extinction_scattering_coefficients!(can::HyperspectralMLCanopy{FT}, angles::SunSensorGeometry{FT}) where {FT<:AbstractFloat}

Update the extinction and scattering coefficients, given

• can HyperspectralMLCanopy type canopy
• angles SunSensorGeometry type angles

This function updates canopy optical properties for canopy. The supported methods are to

• Update the extinction coefficients
• Update the soil boundary conditions (not public function)
• Update scattering coefficient matrices

canopy_optical_properties!(can::HyperspectralMLCanopy{FT}, angles::SunSensorGeometry{FT}) where {FT<:AbstractFloat}

Updates canopy optical properties (extinction coefficients for direct and diffuse light) based on the SAIL model, given

• can HyperspectralMLCanopy type struct
• angles SunSensorGeometry type struct

canopy_optical_properties!(can::HyperspectralMLCanopy{FT}, albedo::BroadbandSoilAlbedo{FT}) where {FT<:AbstractFloat}
canopy_optical_properties!(can::HyperspectralMLCanopy{FT}, albedo::HyperspectralSoilAlbedo{FT}) where {FT<:AbstractFloat}

Updates lower soil boundary reflectance, given

• can HyperspectralMLCanopy type struct
• albedo BroadbandSoilAlbedo or HyperspectralSoilAlbedo type soil albedo

canopy_optical_properties!(can::HyperspectralMLCanopy{FT}, leaves::Vector{Leaves2D{FT}}, soil::Soil{FT}) where {FT<:AbstractFloat}

Updates canopy optical properties (scattering coefficient matrices), given

• can HyperspectralMLCanopy type struct
• leaves Vector of Leaves2D
• soil Bottom soil boundary layer

This function updates canopy radiation profiles. The supported methods are to

• Update shortwave radiation profile for broadband or hyperspectral canopy
• Updates soil shortwave radiation profiles
• Update longwave radation profile for broadband or hyperspectral canopy
• Update radiation profile for SPAC

canopy_radiation!(can::BroadbandSLCanopy{FT}, leaf::Leaves1D{FT}, rad::BroadbandRadiation{FT}, soil::Soil{FT}) where {FT<:AbstractFloat}
canopy_radiation!(can::BroadbandSLCanopy{FT}, leaf::Leaves1D{FT}, rad::FT, soil::Soil{FT}) where {FT<:AbstractFloat}

Updates shortwave or longwave radiation profiles, given

• can HyperspectralMLCanopy type struct
• leaf Leaves1D type struct
• rad Broadband shortwave or longwave radiation
• soil Soil type struct

canopy_radiation!(can::HyperspectralMLCanopy{FT}, albedo::BroadbandSoilAlbedo{FT}) where {FT<:AbstractFloat}
canopy_radiation!(can::HyperspectralMLCanopy{FT}, albedo::HyperspectralSoilAlbedo{FT}) where {FT<:AbstractFloat}

Updates soil shortwave radiation profiles, given

• can HyperspectralMLCanopy type struct
• albedo BroadbandSoilAlbedo or HyperspectralSoilAlbedo type soil albedo

canopy_radiation!(can::HyperspectralMLCanopy{FT}, leaves::Vector{Leaves2D{FT}}, rad::HyperspectralRadiation{FT}, soil::Soil{FT}; APAR_CAR::Bool = true) where {FT<:AbstractFloat}
canopy_radiation!(can::HyperspectralMLCanopy{FT}, leaves::Vector{Leaves2D{FT}}, rad::FT, soil::Soil{FT}) where {FT<:AbstractFloat}

Updates canopy radiation profiles for shortwave or longwave radiation, given

• can HyperspectralMLCanopy type struct
• leaves Vector of Leaves2D
• rad Incoming shortwave or longwave radiation
• soil Bottom soil boundary layer
• APAR_CAR Whether carotenoid absorption is counted in PPAR, default is true

canopy_radiation!(spac::Union{MonoMLGrassSPAC{FT}, MonoMLPalmSPAC{FT}, MonoMLTreeSPAC{FT}}) where {FT<:AbstractFloat}

Updates canopy radiation profiles for shortwave and longwave radiation, given

• spac MonoMLGrassSPAC, MonoMLPalmSPAC, MonoMLTreeSPAC type SPAC

canopy_fluorescence!(spac::Union{MonoMLGrassSPAC{FT}, MonoMLPalmSPAC{FT}, MonoMLTreeSPAC{FT}}) where {FT<:AbstractFloat}

Updates canopy fluorescence, given

• spac MonoMLGrassSPAC, MonoMLPalmSPAC, MonoMLTreeSPAC type SPAC

This function interpolate the spectrum to give values at the target wavelength bin(s). The supported methods include

• Interpolate the spectrum at a given wavelength
• Interpolate the spectrum in a given wavelength range

read_spectrum(x::Vector{FT}, y::Vector{FT}, target::FT) where {FT<:AbstractFloat}

Return the spectrum value at target wavelength bin, given

• x X-axis of the spectrum
• y Y-axis of the spectrum
• target Target x value

read_spectrum(x::Vector{FT}, y::Vector{FT}, x₁::FT, x₂::FT; steps::Int = 2) where {FT<:AbstractFloat}

Return the spectrum value at target wavelength bin, given

• x X-axis of the spectrum
• y Y-axis of the spectrum
• x₁ Lower x boundary
• x₂ Upper x boundary
• steps The incremental Δx is (x₂ - x₁) / steps

MODIS_EVI(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return EVI for MODIS setup, given

• can HyperspectralMLCanopy type canopy

MODIS_EVI2(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return EVI2 for MODIS setup, given

• can HyperspectralMLCanopy type canopy

MODIS_LSWI(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return LSWI for MODIS setup, given

• can HyperspectralMLCanopy type canopy

MODIS_NDVI(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return NDVI for MODIS setup, given

• can HyperspectralMLCanopy type canopy

MODIS_NIRv(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return NIRv for MODIS setup, given

• can HyperspectralMLCanopy type canopy

OCO2_SIF759(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 759 nm for OCO2 setup, given

• can HyperspectralMLCanopy type canopy

OCO2_SIF770(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 770 nm for OCO2 setup, given

• can HyperspectralMLCanopy type canopy

OCO3_SIF759(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 759 nm for OCO3 setup, given

• can HyperspectralMLCanopy type canopy

OCO3_SIF770(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 770 nm for OCO3 setup, given

• can HyperspectralMLCanopy type canopy

TROPOMI_SIF683(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 682.5 nm for TROPOMI setup, given

• can HyperspectralMLCanopy type canopy

TROPOMI_SIF740(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 740 nm for TROPOMI setup, given

• can HyperspectralMLCanopy type canopy

TROPOMI_SIF747(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 746.5 nm for TROPOMI setup, given

• can HyperspectralMLCanopy type canopy

TROPOMI_SIF751(can::HyperspectralMLCanopy{FT}) where {FT<:AbstractFloat}

Return SIF @ 750.5 nm for TROPOMI setup, given

• can HyperspectralMLCanopy type canopy