Description Usage Arguments Author(s) References See Also

View source: R/water_netRadiation.G.R

This function estimates the long wave incoming radiation using the Stefan-Boltzmann equation. In addition, empirical equation of Bastiaanssen (1995) with coefficients developed by Allen (2000) are used to estimate the effective atmospheric emissivity.

1 | ```
incLWradiation(WeatherStation, DEM, solar.angles, Ts)
``` |

`WeatherStation` |
Weather Station data |

`DEM` |
digital elevation model in meters. |

`solar.angles` |
rasterStack with latitude, declination, hour.angle, incidence.hor and incidence.rel. See solarAngles() |

`Ts` |
Land surface temperature. See surfaceTemperature() |

Guillermo Federico Olmedo

Fonseca-Luengo, David

R. G. Allen, M. Tasumi, and R. Trezza, "Satellite-based energy balance for mapping evapotranspiration with internalized calibration (METRIC) - Model" Journal of Irrigation and Drainage Engineering, vol. 133, p. 380, 2007

Bastiaanssen W. Regionalization of surface flux densities and moisture indicators in composite terrain: A remote sensing approach under clear skies in Mediterranean climates. Ph.D. dissertation, CIP Data Koninklijke Bibliotheek, Den Haag, The Netherlands, 1995, p273

Allen R. RAPID long-wave radiation calculations and model comparisons Internal report, University of Idaho, Kimberly, Idaho, 2000

Other net radiation related functions: `LAI`

,
`METRICtopo`

, `SWtrasmisivity`

,
`albedo`

, `incSWradiation`

,
`netRadiation`

, `outLWradiation`

,
`soilHeatFlux`

, `solarAngles`

,
`surfaceTemperature`

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