dr: Function to compute the diurnal temperature range

View source: R/indicesFAO_tier1.R

drR Documentation

Function to compute the diurnal temperature range

Description

Function to compute the diurnal temperature range

Usage

dr(
  tx,
  tn,
  dates,
  year = NULL,
  year.start = NULL,
  year.end = NULL,
  pnan = 25,
  lat = NULL
)

Arguments

tx

Vector with daily maximum temperature

tn

Vector with daily minimum temperature

dates

Matrix containing the full range of dates corresponding to "tx" and "tn" (ndates x 3 size); e.g. rbind(c(1995, 3, 1), c(1995, 3, 2), ...)

year

Vector with years of interest (e.g. 1990:1995)

year.start

Vector of dates [in "YYYY-MM-DD" format] defining the beginning of a portion of interest within each year (e.g., the agronomic season)

year.end

Vector of dates [in "YYYY-MM-DD" format] defining the end of a portion of interest within each year (e.g., the agronomic season)

pnan

Any year with a percentage of NA data above "pnan" will be ignored

lat

Latitude (NULL) to indicate that latitude information is not used.

Value

Mean diurnal temperature range (per year)

Author(s)

R. Manzanas


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