index_arguments.rainy_season_end: arguments for index rainy_season_end

In Climandes/ClimIndVis: Calculation, verification and visualisation of climate indices

Description

arguments for index rainy_season_end

Usage

## S3 method for class 'rainy_season_end'
index_arguments(
  climindvis,
  rs_method,
  days = NULL,
  dd_th = 1,
  th = NULL,
  nval = NA,
  trend = FALSE,
  NAmaxTrend = 20,
  NAdays = 0,
  ...
)

Arguments

climindvis	Object of type climindvis as returned by make_object which must contain the variable precipitation (prec)
days	Number of days to calculate precipitation sum
dd_th	Dry day threshold
th	Threshold for precipitation sum of <<days>> consecutive days in mm
trend	Logial (or character). Calculates trends with a predefined method for the chosen index. For information on default method, see trend_methods. You can chose to calculate a non-parameteric trend, by setting trend to a character string "MannKendall". This calculates a TheilSen slope and MannKendall test. Default = FALSE.
NAmaxTrend	Maximum number of years in time series of index which are missing values. Value between 0 (=0%); no years with missing values allowed) and 100 (=100%); all years can be missing values). If exceeded, the trend is set to NA for the respective grid point/station. Note that the value is relative to the length of the time series. Default = 20 (20%).
NAdays	Number of NA days allowed per decade for index <<sos>>. Default=0.
rs_method:	method for calculation of index (further indicator arguments for each rs_method are given in brackets and defined below, arguments without default that have to be provided are in bold font ): climandes (nval): precipitation sum (30days) < 16mm (definition from Sedlmeier et al., submitted) garcia (nval): precipitation sum (20days) = 0 (definition from Garcia et al.,2007 ) gurgiser (nval): dry day and precipitation sum (46d) < 10 mm (definition from Gurgiser et al.,2017) th (days,th, nval): dry day and precipitation sum (<<days>>) > <<th>> using user defined thresholds.

DETAILS

In case the criteria are not met for a given year, the value for that year is set to NA.

Examples

data(object_st) # load example objects
calc_index(object_st,index="rainy_season_end",aggt="dates",start_days="0000-02-01",end_days="0000-08-01",rs_method="gurgiser")

Climandes/ClimIndVis documentation built on Oct. 24, 2021, 10:52 a.m.