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openair (version 1.0)

Tools for the analysis of air pollution data

Description

Tools to analyse, interpret and understand air pollution data. Data are typically hourly time series and both monitoring data and dispersion model output can be analysed. Many functions can also be applied to other data, including meteorological and traffic data.

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Version

Install

install.packages('openair')

Monthly Downloads

6,880

Version

1.0

License

GPL (>= 2)

Maintainer

David Carslaw

Last Published

June 10th, 2014

Functions in openair (1.0)

Function to simplify and combine airbase data imports

Time series plot with categories shown as a stacked bar chart

conditionalQuantile

Conditional quantile estimates for model evaluation

Import data from King's College London networks

Calculate common model evaluation statistics

Diurnal, day of the week and monthly variation

Import monitoring site meta data for the AURN, KCL and SAQN networks

Tools for the analysis of air pollution data

Function to rapidly provide an overview of air quality data

Import pre-calculated airbase statistics

corrgram plot with conditioning

Kernel density plot for daily mean exceedance statistics

Function to calculate timeAverages for data frames

Taylor Diagram for model evaluation with conditioning

conditionalEval

Conditional quantile estimates with additional variables for model evaluation

AURN csv file data import for openair

Flexible scatter plots

Calculate summary statistics for air pollution data by year

Bivariate polarAnnulus plot

Import hourly data from the European Environment Agency airbase database

Function to split data in different ways for conditioning

Calculate nonparametric smooth trends

Plot time series

Estimate NO2/NOX emission ratios from monitoring data

Scale key handling for openair

Function to plot wind speed/direction frequencies and other statistics

Bivariate polar plot with smoothing

Subset a data frame based on date

Calculate percentile values from a time series

Automatic text formatting for openair

Calculate rollingMean values

Import pre-calculated HYSPLIT 96-hour back trajectories

K-means clustering of bivariate polar plots

Import data from the UK Automatic Urban and Rural Network (AURN)

Function to extract run lengths greater than a threshold

Plot time series values in convential calendar format

Linear relations between pollutants

Calculate clusters for back tracectories

Scottish Air Quality Network data import for openair

Function to plot percentiles by wind direction

Divide up a data frame by time

CERC Atmospheric Dispersion Modelling System (ADMS) data import function(s) for openair

airbaseFindCode

Helper function to find EEA airbase site codes

Get information about airbase sites and instruments

Generic data import for openair

Example data for openair

openair colours

Trajectory plots with conditioning

Tests for trends using Theil-Sen estimates

Traditional wind rose plot and pollution rose variation