Package index • BrazilMet

Downloading data

Tools for accessing and downloading weather and climate data from external sources.

download_AWS_INMET_daily(): Download of hourly data from automatic weather stations (AWS) of INMET-Brazil in daily aggregates

download_climate_normals(): Download climatological normals from Conventional weather stations (CWS) of Inmet

hourly_weather_station_download(): Download of hourly data from automatic weather stations (AWS) of INMET-Brazil

max_eto_grid_download(): Download maximum reference evapotranspiration (ETo) grids for Brazil

Atmospheric Parameter Calculations

Functions for computing atmosphere pressure Psychrometric constant.

Patm(): Atmospheric pressure (Patm)

psy_const(): Psychrometric constant

Evapotranspiration Estimation

Methods for calculating reference evapotranspiration using approaches like Penman-Monteith, or even design evapotranspiration.

daily_eto_FAO56(): 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*

eto_hs(): Hargreaves - Samani ETo

etp_thorntwaite(): Thorntwaite - Potential evapotranspiration

correction_etp_thornwaite(): Correction for Thorntwaite - Potential evapotranspiration

get_max_eto_at_location(): Get Max Reference Evapotranspiration Values by Geographic Location

design_eto(): Design reference evapotranspiration (Design ETo)

Radiation Parameter Estimation

functions for estimating incoming solar radiation and related radiation parameters.

ra_calculation(): Extraterrestrial radiation for daily periods (ra)

sr_ang_calculation(): Solar radiation based in Angstrom formula (sr_ang)

sr_tair_calculation(): Solar radiation data derived from air temperature differences

rso_calculation_1(): Clear-sky solar radiation with calibrated values available

rs_nearby_calculation(): Solar radiation data from a nearby weather station

rso_calculation_2(): Clear-sky solar radiation when calibrated values are not available

rns_calculation(): Net solar or net shortwave radiation (rns)

rnl_calculation(): Net longwave radiation (rnl)

rn_calculation(): Net radiation (rn)

radiation_conversion(): Conversion factors for radiation

Air Humidity & Wind Speed Parameters

Functions to compute relative humidity, saturation vapor pressure, and wind speed adjustments.

es_calculation(): Mean saturation vapour pressure (es)

ea_dew_calculation(): Actual vapour pressure (ea) derived from dewpoint temperature

ea_rh_calculation(): Actual vapour pressure (ea) derived from relative humidity data

es_ea_calculation(): Vapour pressure deficit (es - ea)

rh_calculation(): Relative humidity (rh) calculation

u2_calculation(): Wind speed at 2 meters high

Station Selection & Information

Tools for listing, filtering, and retrieving the weather stations of interest in Brazil.

see_stations_info(): Localization of the automatic weather station of INMET

selectAWSstations(): Select Automatic Weather Stations