rate_of_chill: Rate of chilling according to Chmielewski's model

In EduardoFernandezC/dormancyR: Functions to Compute Chill Metrics

Rate of chilling according to Chmielewski's model

Description

Function to calculate winter chill for deciduous fruit trees according to the model (sequential model) proposed by Chmielewski et al. (2001) in Germany.

Usage

rate_of_chill(ExtrDailyTemp, summ = TRUE)

Arguments

ExtrDailyTemp	Dataframe containing columns "Tmax" and "Tmin". These values must correspond to daily records
summ	Boolean parameter indicating whether the computed metric should be provided as cumulative values over the period or as the actual accumulation for each hour

References

Chmielewski F., Blumel K., Henniges Y., Blanke M., Weber R. and Zoth M. (2011). Phenological models for the beginning of apple blossom in Germany. Meteorol. Z. 20(5): 487-496. doi:10.1127/0941-2948/2011/0258

Examples

library(chillR)

#Example 1

rate_of_chill(KA_weather, summ = TRUE)

#Example 2

tempResponse_daily(KA_weather, Start_JDay = 345, End_JDay = 58,
                   models = list(Rate_of_Chill = rate_of_chill))

EduardoFernandezC/dormancyR documentation built on Aug. 24, 2022, 7:21 a.m.