frost_risk: Compute the number of hours below a given threshold

In EduardoFernandezC/dormancyR: Functions to Compute Chill Metrics

Compute the number of hours below a given threshold

Description

This function computes the numbers of hours below a given threshold. This function allows to attempt the potential risk of spring frost events for deciduous trees. This function is compatible with some chillR functions (i.e tempResponse) to estimate metrics from hourly temperature records.

Usage

frost_risk(HourTemp, summ = TRUE, threshold = 0)

Arguments

HourTemp	Vector of hourly temperatures
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
threshold	Numeric vector below which it is considered a potential frost event. Default to 0 celsius degree

Note

By using this function as model input for chillR::tempResponse, the threshold parameter is set to the default, 0.

Examples

library(chillR) 

data <- stack_hourly_temps(KA_weather, latitude = 50.62)
frost_risk(data$hourtemps$Temp, summ = TRUE, threshold = -1)

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