ctu: Calculate Cumulative Thermal Unit
In whamer/papros: PAthogen PROgnosis System
Description
Usage
Arguments
Value
Author(s)
Examples
Description
This functions calculates cumulative thermal unit using the daily thermal unit (dtu)
(Based on https://www.researchgate.net/publication/281674392_Modeling_physiology_of_crop_development_growth_and_yield)
Usage
1
ctu(TMP, TBD = 0, TP1D = 25, TP2D = 28, TCD = 40)
Arguments
TMP
temperature in °C (vector or raster file)
TBD
thermal base temperature; default = 0 for wheat
TP1D
lower optimum temperature; default = 25 for wheat
TP2D
upper optimum temperature; default = 28 for wheat
TCD
thermal ceiling temperature; default = 40 for wheat
Value
a vector or raster file (depending on input) with the relative development rate based on temperature
Author(s)
Wolfgang Hamer
Examples
1
2
whamer/papros documentation built on Feb. 6, 2021, 8:54 a.m.
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Description Usage Arguments Value Author(s) Examples
Description
This functions calculates cumulative thermal unit using the daily thermal unit (dtu) (Based on https://www.researchgate.net/publication/281674392_Modeling_physiology_of_crop_development_growth_and_yield)
Usage
1 | ctu(TMP, TBD = 0, TP1D = 25, TP2D = 28, TCD = 40)
|
Arguments
TMP |
temperature in °C (vector or raster file) |
TBD |
thermal base temperature; default = 0 for wheat |
TP1D |
lower optimum temperature; default = 25 for wheat |
TP2D |
upper optimum temperature; default = 28 for wheat |
TCD |
thermal ceiling temperature; default = 40 for wheat |
Value
a vector or raster file (depending on input) with the relative development rate based on temperature
Author(s)
Wolfgang Hamer
Examples
1 2 |
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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