agroindexFAO: FAO Agronomic indices

In SantanderMetGroup/climate4R.indices: Climate Index calculation for climate4R data

FAO Agronomic indices

Description

Compute the selected FAO Agronomic index

Usage

agroindexFAO(
  lat,
  dates,
  index.code,
  pr = NULL,
  tx = NULL,
  tn = NULL,
  pnan = 25,
  shc = 100,
  rndy = 2.5,
  rnlg = 50,
  txh = 30,
  tnh = 18
)

Arguments

lat	Latitude (Integer)
dates	Vector of dates
index.code	Character of the index code to be computed. Options are: "dt_st_rnagsn", "nm_flst_rnagsn", "dt_fnst_rnagsn", "dt_ed_rnagsn", "dl_agsn = rep", "dc_agsn, "rn_agsn, "avrn_agsn", "dc_rnlg_agsn", "tm_agsn", "dc_txh_agsn", "dc_tnh_agsn" (See Details).
pr	Vector of precipitation data
tx	Vector of maximum temperature data
tn	Vector of minimum temperature data
pnan	maximum percentage of missing data (pr, tx, tn) allowed in one year to compute the indices
shc	maximum soil holding capacity
rndy	amount of rain in a day to be considered as “rainy” day (in mm/day)
rnlg	“large” rainfall event (mm/day)
txh	“hot” tmax (degC)
tnh	“hot” tmin (degC)

Details

dt_st_rnagsn = first start date of the Agronomic Season (AS) nm_flst_rnagsn = number of false starts of the AS dt_fnst_rnagsn = final start date of the AS dt_ed_rnagsn = end date of the AS dl_agsn = length of the AS dc_agsn = number of rainy days in AS rn_agsn = total amount of rain in AS avrn_agsn = average amount of rain in rainy days in AS dc_rnlg_agsn = number of days with "high" rain in AS tm_agsn = average daily tas in AS dc_txh_agsn = number of "hot" tmax days in AS dc_tnh_agsn = number of "hot" tmin days in AS

Author(s)

R. Manzanas

SantanderMetGroup/climate4R.indices documentation built on July 3, 2023, 11:02 p.m.