readFluxdata: readFluxdata

In dsval/splashTools: Wrapper Function to Download and Preprocess FOrcing and Ancillary data

readFluxdata

Description

Reads fluxnet data, calculates daily cuantities, including evapotranspiration. VPD, air temperature, and netrad use the daily daytime, albedo and snowmelt are still in experimental stage, the function takes only positive latent heat to compute actual evapotranspiration, the function works for the fluxnet tier 1-2 datasets, ameriflux and europa flux.

Usage

readFluxdata(filename, elev)

Arguments

filename:	location of the csv file with subdaily data
elev:	elevation in m.a.s.l.

Value

xts dataframe with the following variables:

• aet: actual evapotranspiration (mm/day)

• pet: potential evapotranspiration (mm/day)

• eeq: equilibrium evapotranspiration (mm/day)

• tc: daily daytime air temperature (C)

• SW_in: daily incoming shortwave (W/m^2)

• pn: daily precipitation (mm/day)

• sm: daily soil moisture (volumetric

• netr: daily daytime net radiation (MJ/day)

• VPD: daily daytime vapour pressure deficit (Pa)

• VPD_SA: daily daytime vapour pressure deficit surface-air (Pa)(calculated using Tsurf, measured or inferred from LW)

• CO2: daily daytime CO2 concentration (ppm)

• GPP: daily GPP (gC/m^2/day)

• snowmelt: daily snowmelt (mm/day)—experimental

• alb: daily median albedo —experimental

• cond: daily condensation (mm/day) —experimental, negative LE migth mean refreezing

Examples

readFluxdata(filename,elev)

dsval/splashTools documentation built on Jan. 26, 2023, 4:40 a.m.