knitr::opts_chunk$set(
collapse = TRUE,
message = FALSE,
warning = FALSE,
dev = "ragg_png",
tidy = "styler",
comment = "#>",
dpi = 300,
fig.path = "man/figures/README-",
out.width = "100%"
)
The goal of climaemet is to serve as an interface to download the climatic data of the Spanish Meteorological Agency (AEMET) directly from R using their API and create scientific graphs (climate charts, trend analysis of climate time series, temperature and precipitation anomalies maps, "warming stripes" graphics, climatograms, etc.).
Browse manual and vignettes at https://ropenspain.github.io/climaemet/.
AEMET OpenData is a REST API developed by AEMET that allows the dissemination and reuse of the Agency's meteorological and climatological information. To see more details visit: https://opendata.aemet.es/centrodedescargas/inicio
Information prepared by the Spanish Meteorological Agency (© AEMET). You can read about it here.
A summary for the usage of the data could be interpreted as:
People can use freely this data. You should mention AEMET as the collector of the original data in every situation except if you are using this data privately and individually. AEMET makes no warranty as to the accuracy or completeness of the data. All data are provided on an "as is" basis. AEMET is not responsible for any damage or loss derived from the interpretation or use of this data.
You can install the released version of climaemet from CRAN with:
install.packages("climaemet")
You can install the developing version of climaemet using the r-universe:
# Install climaemet in R:
install.packages("climaemet",
repos = c("https://ropenspain.r-universe.dev", "https://cloud.r-project.org")
)
Alternatively, you can install the developing version of climaemet with:
library(remotes)
install_github("ropenspain/climaemet")
To be able to download data from AEMET you will need a free API key which you can get here.
library(climaemet)
## Get api key from AEMET
browseURL("https://opendata.aemet.es/centrodedescargas/obtencionAPIKey")
## Use this function to register your API Key temporarly or permanently
aemet_api_key("MY API KEY")
Now the apikey
parameter on the functions have been deprecated. You may need
to set your API Key globally using aemet_api_key()
. Note that you would need
also to remove the apikey
parameter on your old codes.
From v1.0.0
onward, climaemet provides its results in tibble
format. Also, the functions try to guess the
correct format of the fields (i.e. something as a Date/Hour now is an hour,
numbers are parsed as double, etc.).
library(climaemet)
# See a tibble in action
aemet_last_obs("9434")
The package provides several functions to access the data of the API. Here you can find some examples:
## Get AEMET stations
stations <- aemet_stations() # Need to have the API Key registered
knitr::kable(head(stations))
station <- "9434" # Zaragoza Aeropuerto
## Get last observation values for a station
data_observation <- aemet_last_obs(station)
knitr::kable(head(data_observation))
## Get daily/annual climatology values for a station
data_daily <- aemet_daily_clim(station,
start = "2022-01-01",
end = "2022-06-30"
)
knitr::kable(head(data_daily))
## Get monthly/annual climatology values for a station
data_monthly <- aemet_monthly_clim(station, year = 2022)
knitr::kable(head(data_monthly))
## Get recorded extreme values of temperature for a station
data_extremes <- aemet_extremes_clim(station, parameter = "T")
knitr::kable(head(data_extremes))
We can also draw a "warming stripes" graph with the downloaded data from a weather station. These functions returns ggplot2 plots:
# Plot a climate stripes graph for a period of years for a station
library(ggplot2)
# Example data
temp_data <- climaemet::climaemet_9434_temp
ggstripes(temp_data, plot_title = "Zaragoza Airport") +
labs(subtitle = "(1950-2020)")
Furthermore, we can draw the well-known Walter & Lieth climatic diagram for a weather station and over a specified period of time:
# Plot of a Walter & Lieth climatic diagram for a station
# Example data
wl_data <- climaemet::climaemet_9434_climatogram
ggclimat_walter_lieth(wl_data,
alt = "249", per = "1981-2010",
est = "Zaragoza Airport"
)
Additionally, we may be interested in drawing the wind speed and direction over a period of time for the data downloaded from a weather station.:
# Plot a windrose showing the wind speed and direction for a station
# Example data
wind_data <- climaemet::climaemet_9434_wind
speed <- wind_data$velmedia
direction <- wind_data$dir
ggwindrose(
speed = speed, direction = direction,
speed_cuts = seq(0, 16, 4), legend_title = "Wind speed (m/s)",
calm_wind = 0, n_col = 1, plot_title = "Zaragoza Airport"
) +
labs(subtitle = "2000-2020", caption = "Source: AEMET")
Another major change in v1.0.0
is the ability of return information on spatial
sf
format, using return_sf = TRUE
. The coordinate reference system (CRS)
used is EPSG 4326, that correspond to the World Geodetic System (WGS)
and return coordinates in latitude/longitude (unprojected coordinates):
# You would need to install `sf` if not installed yet
# run install.packages("sf") for installation
library(ggplot2)
library(dplyr)
all_stations <- aemet_daily_clim(
start = "2021-01-08", end = "2021-01-08",
return_sf = TRUE
)
ggplot(all_stations) +
geom_sf(aes(colour = tmed), shape = 19, size = 2, alpha = 0.95) +
labs(
title = "Average temperature in Spain",
subtitle = "8 Jan 2021",
color = "Max temp.\n(celsius)",
caption = "Source: AEMET"
) +
scale_colour_gradientn(
colours = hcl.colors(10, "RdBu", rev = TRUE),
breaks = c(-10, -5, 0, 5, 10, 15, 20),
guide = "legend"
) +
theme_bw() +
theme(
panel.border = element_blank(),
plot.title = element_text(face = "bold"),
plot.subtitle = element_text(face = "italic")
)
Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.
Using climaemet for a paper you are writing?. Consider citing it:
print(citation("climaemet")[1], style = "html")
A BibTeX entry for LaTeX users is:
toBibtex(citation("climaemet")[1])