README.md

In cptec: An Interface to the 'CPTEC/INPE' API

cptec

The goal of cptec is to allows the user to retrieve data from the CPTEC/INPE weather forecast API. CPTEC stands for 'Centro de Previsão de Tempo e Estudos Climáticos' and INPE for 'Instituto Nacional de Pesquisas Espaciais'. CPTEC is the most advanced numerical weather and climate forecasting center in Latin America, with high-precision short and medium-term weather forecasting since the beginning of 1995. See https://www.cptec.inpe.br/ for more information.

Installation

Install the release version from CRAN:

install.packages("cptec")

or the development version from github

# install.packages("devtools")
devtools::install_github("rpradosiqueira/cptec")

Functions

The "cptec" package contains the functions:

prev4dias          It retrieve 4 days weather forecast data
                   according to the 'id' provided

prev7dias          It retrieve 7 days weather forecast data
                   according to the 'id' provided

listaCidades       It allows the user to discover which are
                   the city`s ID of interest

metar              It allows the user to retrieve data from
                   airport surface stations

ondas              It allows the user to retrieve data from
                   sea waves

prevEstendida      It retrieve 14 days weather forecast data
                   according to the 'id' provided

prevLatLon         It retrieve 7 days weather forecast data
                   according to the latitude/longitude provided

estendidaLatLon    It retrieve 14 days weather forecast data
                   according to the latitude/longitude provided

iuv                It retrieve the last updated data from CPTEC/INPE
                   ultra violet index for a determined city

estacoes_metar     List "Metar" initials and descriptions

condicoes_tempo    List "tempo" descriptions

capitais           It allows the user to retrieve data from
                   current weather conditions of capitals

Example

Let's assume that we want the next 7 days weather forecast for the city of Rio de Janeiro/RJ. To do this simply execute:

library(cptec)

prev7dias(id = 241)
#>           cidade uf atualizacao        dia tempo maxima minima iuv
#> 1 Rio de Janeiro RJ  2017-09-21 2017-09-22    vn     33     17   9
#> 2 Rio de Janeiro RJ  2017-09-21 2017-09-23    pn     33     18   9
#> 3 Rio de Janeiro RJ  2017-09-21 2017-09-24    vn     35     17   9
#> 4 Rio de Janeiro RJ  2017-09-21 2017-09-25    pn     27     17   9
#> 5 Rio de Janeiro RJ  2017-09-21 2017-09-26    vn     31     17   9
#> 6 Rio de Janeiro RJ  2017-09-21 2017-09-27    vn     32     17   9

cptec documentation built on June 8, 2022, 1:06 a.m.