calcFlux_bio: A low-level function for calculating a sequence of maps of...

In NERC-CEH/ukghg: Greenhouse Gas Fluxes from the UK

A low-level function for calculating a sequence of maps of biogenic GHG flux

Description

This function calculates biopogenic greenhouse gas fluxes from the UK, based on a spatio-temporal model and the national GHG inventory data.

Usage

calcFlux_bio(
  ghgName = c("ch4", "co2", "n2o", "c2h6", "voc"),
  datect = datect,
  proj = c("OSGB", "LonLat"),
  res = c("1", "20", "100"),
  unitType = c("mol", "g"),
  unitSIprefix = c("peta", "tera", "giga", "mega", "kilo", "none", "milli", "micro",
    "nano", "pico"),
  timeScales = c(TRUE, TRUE, TRUE, TRUE)
)

Arguments

ghgName	Greenhouse gas: one of "ch4", "co2", "n2o", "c2h6" or "voc". Defaults to "ch4".
datect	A vector of timestamps in POSIXct format.
proj	Geographic projection for the gridded data, either "OSGB" or "LonLat". Defaults to OSGB.
res	Resolution for the gridded data, either 1, 20 or 100 km or 0.01 degrees for LonLat. Defaults to "1km".
unitType	Either molar ("mol") or mass-based ("g").
unitSIprefix	Any standard SI prefix for the output units, from "peta" to "pico".
timeScales	A vector of logicals for including variation at inter-annual, seasonal, intra-weekly, and diurnal time scales (i.e. the POSIXlt variables year, yday, wday, and hour. Defaults to TRUE for all four.

See Also

calcFlux, the higher-level function which calls this.

Examples

startDate <- as.POSIXct(strptime("01/06/2006", "%d/%m/%Y"), tz = "UTC")
endDate   <- as.POSIXct(strptime("02/06/2006", "%d/%m/%Y"), tz = "UTC")
# create a sequence of dates
nTimes <- 2
datect <- seq(startDate, endDate, length = nTimes)
myFlux <- calcFlux_bio("co2", datect, proj = "OSGB", res = "100", "mol", "micro")
plot(datect, myFlux$total)

NERC-CEH/ukghg documentation built on March 31, 2022, 3:16 a.m.