timeAverage
(Package: openair) :
Function to calculate time averages for data frames
Function to flexibly aggregate or expand data frames by different time periods, calculating vector-averaged wind direction where appropriate. The averaged periods can also take account of data capture rates.
● Data Source:
CranContrib
● Keywords: methods
● Alias: timeAverage
●
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importMeta
(Package: openair) :
Import monitoring site meta data for the AURN, KCL and SAQN networks
Function to import meta data from UK air pollution monitoring sites
● Data Source:
CranContrib
● Keywords: methods
● Alias: importMeta
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timeVariation
(Package: openair) :
Diurnal, day of the week and monthly variation
Plots the diurnal, day of the week and monthly variation for different variables, typically pollutant concentrations. Four separate plots are produced.
● Data Source:
CranContrib
● Keywords: methods
● Alias: timeVariation
●
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airbaseFindCode
(Package: openair) :
Helper function to find EEA airbase site codes
Helper function to find airbase site codes
● Data Source:
CranContrib
● Keywords:
● Alias: airbaseFindCode
●
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aqStats
(Package: openair) :
Calculate summary statistics for air pollution data by year
Calculate a range of air pollution-relevant statistics by year and by site.
● Data Source:
CranContrib
● Keywords: methods
● Alias: aqStats
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importAirbase
(Package: openair) :
Import hourly data from the European Environment Agency airbase database
Import European Environment Agency airbase hourly air quality data
● Data Source:
CranContrib
● Keywords:
● Alias: importAirbase
●
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calendarPlot
(Package: openair) :
Plot time series values in convential calendar format
This function will plot one year of data by month laid out in a conventional calendar format. The main purpose is to help rapidly visualise potentially complex data in a familiar way. Users can also choose to show daily mean wind vectors if wind speed and direction are available.
● Data Source:
CranContrib
● Keywords: methods
● Alias: calendarPlot
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airbaseInfo
(Package: openair) :
Get information about airbase sites and instruments
Get information about airbase sites and instruments
● Data Source:
CranContrib
● Keywords:
● Alias: airbaseInfo
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trajCluster
(Package: openair) :
Calculate clusters for back tracectories
This function carries out cluster analysis of HYSPLIT back trajectories. The function is specifically designed to work with the trajectories imported using the openair importTraj function, which provides pre-calculated back trajectories at specific receptor locations.
● Data Source:
CranContrib
● Keywords: methods
● Alias: trajCluster
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splitByDate
(Package: openair) :
Divide up a data frame by time
Utility function to prepare input data for use in openair functions
● Data Source:
CranContrib
● Keywords: methods
● Alias: splitByDate
●
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