The polar_data dataset is provided as an example dataset as part of
the openairmaps package. The dataset contains hourly measurements of
air pollutant concentrations, location and meteorological data.
Format
Data frame with example data from four sites in London in 2009.
- date
The date and time of the measurement
- nox, no2, pm2.5, pm10
Pollutant concentrations
- site
The site name. Useful for use with the
popupandlabelarguments inopenairmapsfunctions.- latitude, longitude
Decimal latitude and longitude of the sites.
- site.type
Site type of the site (either "Urban Traffic" or "Urban Background").
- wd
Wind direction, in degrees from North, as a numeric vector.
- ws
Wind speed, in m/s, as numeric vector.
- visibility
The visibility in metres.
- air_temp
Air temperature in degrees Celcius.
Source
polar_data was compiled from data using the
openair::importAURN() function from the openair package with
meteorological data from the worldmet package.
Details
polar_data is supplied with the openairmaps package as an
example dataset for use with documented examples.
Examples
# basic structure
head(polar_data)
#> # A tibble: 6 × 13
#> date nox no2 pm2.5 pm10 site lat lon site_type wd
#> <dttm> <dbl> <dbl> <dbl> <dbl> <chr> <dbl> <dbl> <chr> <dbl>
#> 1 2009-01-01 00:00:00 113 46 42 46 Lond… 51.5 -0.126 Urban Ba… 58.9
#> 2 2009-01-01 01:00:00 40 32 45 49 Lond… 51.5 -0.126 Urban Ba… 74.5
#> 3 2009-01-01 02:00:00 48 36 43 46 Lond… 51.5 -0.126 Urban Ba… 30
#> 4 2009-01-01 03:00:00 36 29 37 NA Lond… 51.5 -0.126 Urban Ba… 45
#> 5 2009-01-01 04:00:00 40 32 36 38 Lond… 51.5 -0.126 Urban Ba… 70
#> 6 2009-01-01 05:00:00 50 36 33 32 Lond… 51.5 -0.126 Urban Ba… 46.6
#> # ℹ 3 more variables: ws <dbl>, visibility <dbl>, air_temp <dbl>