daily_eto_FAO56: ETo calculation based on FAO-56 Penman-Monteith methodology,...

In BrazilMet: Download and Processing of Automatic Weather Stations (AWS) Data of INMET-Brazil

ETo calculation based on FAO-56 Penman-Monteith methodology, with data from automatic weather stations (AWS) downloaded and processed in function *daily_download_AWS_INMET*

Description

This function will calculate the reference evapotranspiration (ETo) based on FAO-56 (Allen et al., 1998) with the automatic weather stations (AWS) data, downloaded and processed in function *daily_download_AWS_INMET*.

Usage

daily_eto_FAO56(lat, tmin, tmax, tmean, Rs, u2, Patm, RH_max, RH_min, z, date)

Arguments

lat	A numeric value of the Latitude of the AWS (decimal degrees).
tmin	A dataframe with Minimum daily air temperature (Celsius).
tmax	A dataframe with Maximum daily air temperature (Celsius).
tmean	A dataframe with Mean daily air temperature (Celsius).
Rs	A dataframe with mean daily solar radiation (MJ m-2 day-1).
u2	A dataframe with Wind speed at two meters high (m s-2).
Patm	A dataframe with atmospheric Pressure (mB).
RH_max	A dataframe with Maximum relative humidity (percentage).
RH_min	A dataframe with Minimum relative humidity (percentage).
z	A numeric value of the altitude of AWS (m).
date	A data.frame with the date information (YYYY-MM-DD).

Value

Returns a data.frame with the AWS data requested

Author(s)

Roberto Filgueiras, Luan P. Venancio, Catariny C. Aleman and Fernando F. da Cunha

Examples

## Not run: 
eto <- daily_eto_FAO56(lat, tmin, tmax, tmean, Rs, u2, Patm, RH_max, RH_min, z, date)

## End(Not run)

BrazilMet documentation built on June 8, 2025, 11 a.m.