tea_preprocess: preprocess for TEA partitioning

In bgctw/etpart: Partitioning evapotranspiration into transpiration and evaporation

Description

Builds all the derived variables used in the partitioning such as CSWI, DWCI, etc., as well as filters which remove night time, low air temp/GPP, etc. periods.

Usage

tea_preprocess(data, control = tea_config())

Arguments

data	data.frame of full days, must contain at least timestamp, ET, GPP, RH, Rg, Rg_pot, Tair, VPD, precip,
control	see tea_config

Value

ds with filters and additional indices

• cswi: see compute_cswi,

• C_ET, C_Rg: diurnal centroids, see compute_diurnal_centroid,

• dcwi: see compute_DWCI,

• Rg_pot_daily: daily daily Rg_pot in MJ m-2 d-1

• year: the year of the time-stamp use mid-time-stamps. If using end-timestampes, NewYear is already next

• GPPgrad: daily smoothed GPP gradient in umol C m-2 s-1 d-1 , which gives and indication of phenology

• Rgpotgrad and Rpotgrad_day: gradients in Rpot and daily means of Rpot, which give an indication of time in the year, ie. season

• tempFlag: records with minimum temperature (see tea_config)

• GPPFlag: records with minimum GPP and minimum daily GPP (see tea_config)

• seasonFlag: combined tempFlag and GPPFlag

• inst_WUE: instant water use efficiency (GPP/ET) in g C per kg H2O

bgctw/etpart documentation built on Dec. 19, 2021, 8:49 a.m.