The road_data dataset is provided as an example dataset as part of the
deweather package. The dataset contains hourly measurements of air
pollutant concentrations, wind speed and wind direction collected at the
Marylebone (London) air quality monitoring supersite between 1st January 1998
and 23rd June 2005.
Format
Data frame with 65533 observations (rows) and the following 10 variables:
- date
Observation date/time stamp in year-month-day hour:minute:second format (POSIXct).
- ws
Wind speed, in m/s, as numeric vector.
- wd
Wind direction, in degrees from North, as a numeric vector.
- nox
Oxides of nitrogen concentration, in ppb, as a numeric vector.
- no2
Nitrogen dioxide concentration, in ppb, as a numeric vector.
- o3
Ozone concentration, in ppb, as a numeric vector.
- pm10
Particulate PM10 fraction measurement, in ug/m3 (raw TEOM), as a numeric vector.
- so2
Sulfur dioxide concentration, in ppb, as a numeric vector.
- co
Carbon monoxide concentration, in ppm, as a numeric vector.
- pm25
Particulate PM2.5 fraction measurement, in ug/m3, as a numeric vector.
Examples
# basic structure
head(road_data)
#> # A tibble: 6 × 11
#> date nox no2 ethane isoprene benzene ws wd air_temp
#> <dttm> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>
#> 1 1998-01-01 00:00:00 546 74 NA NA NA 1 280 3.6
#> 2 1998-01-01 01:00:00 NA NA NA NA NA 1 230 3.5
#> 3 1998-01-01 02:00:00 NA NA NA NA NA 1.5 180 4.25
#> 4 1998-01-01 03:00:00 944 99 NA NA NA NA NA NA
#> 5 1998-01-01 04:00:00 894 149 NA NA NA 1.5 180 3.8
#> 6 1998-01-01 05:00:00 506 80 NA NA NA 1 190 3.5
#> # ℹ 2 more variables: RH <dbl>, cl <dbl>