Description Usage Arguments Details Value Author(s) References See Also Examples
View source: R/Evapotranspiration.R
Implementing the Makkink formulation for estimating reference crop evapotranspiration.
1 2 3 |
data |
A list of data which contains the following items (climate variables) required by Makkink formulation: |
constants |
A list named |
ts |
Must be either |
solar |
Must be either |
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.
The function generates a list containing the following components:
ET.Daily |
Daily aggregated estimations of Makkink reference crop evapotranspiration. |
ET.Monthly |
Monthly aggregated estimations of Makkink reference crop evapotranspiration. |
ET.Annual |
Annually aggregated estimations of Makkink reference crop evapotranspiration. |
ET.MonthlyAve |
Monthly averaged estimations of daily Makkink reference crop evapotranspiration. |
ET.AnnualAve |
Annually averaged estimations of daily Makkink 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. |
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.
De Bruin, H. 1981, The determination of (reference crop) evapotranspiration from routine weather data. Evaporation in relation to hydrology, pp. 25-37.
ET
,processeddata
,defaultconstants
,constants
1 2 3 4 5 6 7 | # Use processed existing data set and constants from kent Town, Adelaide
data("processeddata")
data("constants")
# Call ET.Makkink under the generic function ET
results <- ET.Makkink(processeddata, constants, ts="daily", solar="sunshine hours",
message="yes", AdditionalStats="yes", save.csv="no")
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