model.lange.customize | R Documentation |
This page describes the parameters that can be used to customize Lange. The model was developed by \insertCiteLange2008;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_base |
Base temperature to calculate degree days to trigger the onset. |
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_base_stages |
Base temperatures to calculate degree days for the different stages in the following order: egg, larva, pupa, juvenile adult. |
dd_threshold_stages |
Thermal thresholds for the different stages in the following order: egg, larva, pupa, juvenile adult. |
model_end_date |
Date when the model ends (no further development will be modeled). |
first_lethal_date |
Date before which no mortality will be modeled. |
tlethal |
Temperature threshold below which white stages (egg, larva, pupa) will die. |
In barrks
, model()
is used to customize a model. The following code
illustrates which parameters are available for the Lange model and specifies their
default values.
model("lange", # ==== onset ==== # dd_onset_start_date = '01-01', dd_onset_base = 5, dd_onset_threshold = 110, # ==== onset + development ==== tfly = 19.5, # ==== development ==== # dd_base_stages = c(10.6, 8.2, 9.9, 3.2), dd_threshold_stages = c(51.8, 204.4, 57.7, 238.5), model_end_date = '12-31', # ==== mortality ==== # first_lethal_date = '09-01', tlethal = 0 )
model()
, phenology()
, model.lange.apply
Other model customizations:
model.bso.customize
,
model.chapy.customize
,
model.joensson.customize
,
model.phenips.customize
,
model.phenips_clim.customize
,
model.rity.customize
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