help_aggrLE: Aggregate latent heat data.
In JBrenn/Helper4me:

Description Usage Arguments Value Author(s) Examples

Daily aggregation of latent heat data from eddy covariance systems. Native data time resolution is sub-daily. Conversion to evapotranspiration flux (mm/d) is possible.

1	help_aggrLE(LE, perc_thresh = 0.1, ET = TRUE)

`LE`	zoo object, subdaily latent heat data in W/m2
`perc_thresh`	threshold (percentage of NAs [0;1]) defining if specific day fulfills data quality
`ET`	boolean, if TRUE latent heat (W/m2) will be converted to evapotranspiration (mm/d)

zoo object, containing quality daily latent heat or evapotranspiration data

Johannes Brenner johannes.brenner@ufz.de

library(zoo)
library(chron)
# load eddy covariance data
data(eses1)
# extract latent heat
LE <- eses1$ufz_lE
# spline interpolation
LE_spline <- zoo::na.spline(LE, maxgap=10)
# aggregate latent heat, convert to evapotranspiration
ET <- help_aggrLE(LE = LE_spline, perc_thresh = .1, ET = TRUE)
# plot time series
plot(ET)