model.rity.customize | R Documentation |
This page describes the parameters that can be used to customize RITY (also called RITY-2). The model was developed by \insertCiteOgris2019;textualbarrks. Look here to find out how to apply the model.
dd_onset_start_date |
The date, when the degree days start to sum up ('MM-DD'). |
dd_onset_threshold |
Degree days that are required to trigger the onset of
infestation. Additionally, the maximum temperature must exceed |
tfly |
Minimum temperature that beetles need to fly. |
dd_onset_base |
Base temperature to calculate degree days for development. |
dd_total_dev |
Degree days that are required for a generation to fully develop |
dev_start , dev_end |
Share in total development when the egg development starts and the juvenile beetle's development ends respectively. Usable if the development below/above these thresholds should account for mating, oviposition etc. |
dev_sister_brood |
Share in the total development, when a sister brood will be established. |
dev_mortal_min , dev_mortal_max |
The beetles are considered to be in
white stages (egg, larva, pupa) if their development exceeds |
func_ftmean , func_ftmax , func_atdiff |
Functions to caclulate the air temperature in forest stands (see \insertCiteOgris2019;nobracketsbarrks, equations 1 - 3). Each parameter will be passed as SpatRaster:
|
func_btmean , func_btmax , func_btdiff |
Functions to caclulate the bark temperature (see \insertCiteOgris2019;nobracketsbarrks, equations 4 - 6). Each parameter will be passed as SpatRaster:
|
dt_low , dt_up , topt , tmax , alpha , beta , gamma |
Parameters to calculate the effective bark temperature (see \insertCiteOgris2019;nobracketsbarrks, equations 7 - 9). |
model_end_date |
Date when the model ends (no further development will be modeled). |
daylength_dia |
When the daylength falls below this threshold, diapause will be initiated. |
mortality_date |
Date when all white stages (egg, larva, pupa) die. |
In barrks
, model()
is used to customize a model. The following code
illustrates which parameters are available for RITY and specifies their
default values.
model("rity", # ==== onset ==== dd_onset_start_date = '03-07', dd_onset_base = 8.3, dd_onset_threshold = 155.6, # ==== onset + development ==== tfly = 14.5, # ==== development ==== dd_development_base = 8.3, dd_total_dev = 557, dev_start = 0, dev_end = 1, dev_sister_brood = 0.5, dev_mortal_min = NULL, dev_mortal_max = 0.6, func_ftmin = function(tmin) { 1.44 + 0.82 * tmin }, func_ftmean = function(tmean) { 0.50 + 0.81 * tmean }, func_ftmax = function(tmax) { 1.03 + 0.86 * tmax }, func_btmin = function(ftmin) { 0.56 + 0.99 * ftmin }, func_btmean = function(ftmean) { -0.48 + 1.03 * ftmean }, func_btmax = function(ftmax) { 0.03 + 0.99 * ftmax }, dt_low = 8.3, dt_up = 38.9, topt = 30.4, tmax = 40.9958913, alpha = 0.02876507, beta = 3.5922336, gamma = 1.24657367, model_end_date = '10-31', # ==== diapause ==== daylength_dia = 14.5, # ==== mortality ==== mortality_date = '10-31' )
model()
, phenology()
, model.rity.apply
Other model customizations:
model.bso.customize
,
model.chapy.customize
,
model.joensson.customize
,
model.lange.customize
,
model.phenips.customize
,
model.phenips_clim.customize
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.