ns: Function to compute the number of spells (either dry or wet),...

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

Function to compute the number of spells (either dry or wet), as defined by threshold and duration

Description

Function to compute the number of spells (either dry or wet), as defined by threshold and duration

Usage

ns(
  pr,
  dates,
  wet.threshold,
  duration,
  type.spell = "dry",
  year = NULL,
  year.start = NULL,
  year.end = NULL,
  pnan = 25,
  lat = NULL
)

Arguments

pr	Vector with daily precipitation
dates	Matrix containing the full range of dates corresponding to "pr" (ndates x 3 size); e.g. rbind(c(1995, 3, 1), c(1995, 3, 2), ...)
wet.threshold	Threshold considered to define wet days. Must be in the same units of "pr"
duration	Duration (in days) of spells
type.spell	Either "dry" or "wet"
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

Number of spells (either dry or wet) (per year)

Author(s)

R. Manzanas

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