ET.BlaneyCriddle {Evapotranspiration} | R Documentation |

Implementing the Blaney-Criddle formulation for estimating reference crop evapotranspiration.

## S3 method for class 'BlaneyCriddle' ET(data, constants, ts="daily", solar="sunshine hours", height = F, message="yes", AdditionalStats="yes", save.csv="no", ...)

`data` |
A list of data which contains the following items (climate variables) required by Blaney-Criddle formulation: |

`constants` |
A list named |

`ts` |
Must be either |

`solar` |
Must be either |

`height` |
Must be |

`message` |
Must be either |

`AdditionalStats` |
"yes" or "no" indicating whether monthly averaged and annual averaged ET should be calculated. |

`save.csv` |
Must be either |

`...` |
Dummy for generic function, no need to define. |

The alternative calculation options can be selected through argument `solar`

, please see `Arguments`

for details.

Height adjustment for the estimations is available through argument `height`

, please see `Arguments`

for details.

The function generates a list containing the following components:

`ET.Daily` |
Daily aggregated estimations of Blaney-Criddle reference crop evapotranspiration. |

`ET.Monthly` |
Monthly aggregated estimations of Blaney-Criddle reference crop evapotranspiration. |

`ET.Annual` |
Annually ggregated estimations of Blaney-Criddle reference crop evapotranspiration. |

`ET.MonthlyAve` |
Monthly averaged estimations of daily Blaney-Criddle reference crop evapotranspiration. |

`ET.AnnualAve` |
Annually averaged estimations of daily Blaney-Criddle reference crop evapotranspiration. |

`ET_formulation` |
Name of the formulation used which equals to |

`ET_type` |
Type of the estimation obtained which is |

`message1` |
A message to inform the users about how solar radiation has been calculated by using which data. |

`message3` |
A message to inform the users about if height adjustment has been applied to calculated Blaney-Criddle reference crop evapotranspiration. |

Danlu Guo

McMahon, T., Peel, M., Lowe, L., Srikanthan, R. & McVicar, T. 2012. *Estimating actual, potential, reference crop and pan evaporation using standard meteorological data: a pragmatic synthesis*. Hydrology and Earth System Sciences Discussions, 9, 11829-11910.

Allen, R.G.Brockway, C.E. 1983, *Estimating consumptive use on a statewide basis*. Advances in Irrigation and Drainage@ sSurviving External Pressures, ASCE, pp. 79-89.

Allen, R. & Pruitt, W. 1986. *Rational Use of The FAO Blaney-Criddle Formula*. Journal of Irrigation and Drainage Engineering, 112, 139-155.

Frevert, D.K., Hill, R.W.Braaten, B.C. 1983, *Estimation of FAO evapotranspiration coefficients*, Journal of Irrigation and Drainage Engineering, vol. 109, no. 2, pp. 265-270.

`ET`

,`processeddata`

,`defaultconstants`

,`constants`

# Use processed existing data set and constants from kent Town, Adelaide data("processeddata") data("constants") # Call ET.BlaneyCriddle under the generic function ET results <- ET.BlaneyCriddle(processeddata, constants, ts="daily", solar="sunshine hours", height= FALSE, message="yes", AdditionalStats="yes", save.csv="no")

[Package *Evapotranspiration* version 1.15 Index]