NYdata {spTimer}

Observations of ozone concentration levels, maximum temperature and wind speed.

Description

This data set contains values of daily 8-hour maximum average ozone concentrations (parts per billion (ppb)), maximum temperature (in degree Celsius), wind speed (knots), and relative humidity, obtained from 28 monitoring sites of New York, USA.

NYgrid: This dataset contains total 6200 rows for 62 days of observations for 10x10 = 100 grid points.

Usage

NYdata

Format

Columns for NYdata: each contains 1798 observations.

• 1st col = Site index (s.index),

• 2nd col = Longitude,

• 3rd col = Latitude,

• 4th col = Year,

• 5th col = Month,

• 6th col = Day,

• 7th col = Ozone (o8hrmax),

• 8th col = Maximum temperature (cMAXTMP),

• 9th col = Wind speed (WDSP).

• 10th col = Relative humidity (RH).

Source

US EPA

See Also

NYgrid, spT.Gibbs, spT.subset.

Examples

##
  library("spTimer")
# NY data
  data(NYdata)
  head(NYdata)
# plots in NY map
  NYsite<-unique(cbind(NYdata[,1:3]))
  head(NYsite)
# map
  #library(maps)
  #map(database="state",regions="new york")
  #points(NYsite[,2:3],pch=19)

  # Grid data
  data(NYgrid)
  head(NYgrid)
  grid.coords<-unique(cbind(NYgrid[,8:9]))
  #library(maps)
  plot(grid.coords,pch=19,col=1)
  #map(database="state",regions="new york",add=TRUE)

##