ck_growing_season: Growing Season Length
In climatekit: Unified Climate Indices for Temperature, Precipitation, and Drought
ck_growing_season R Documentation
Growing Season Length
Description
Compute the growing season length following the ETCCDI definition: the
number of days between the first occurrence of at least 6 consecutive days
with daily mean temperature above 5 degrees C and the first span of 6
consecutive days with Tmean below 5 degrees C after July 1 (Northern
Hemisphere) or January 1 (Southern Hemisphere). Calculated per year.
Usage
ck_growing_season(tavg, dates, lat = 50)
Arguments
tavg
Numeric vector of daily mean temperatures (degrees C).
dates
Date vector of the same length as tavg.
lat
Numeric. Latitude in decimal degrees (used to determine
hemisphere for end-of-season rule). Default 50 (Northern Hemisphere).
Value
A data frame with columns period, value, index, and unit.
Examples
dates <- as.Date("2024-01-01") + 0:364
set.seed(42)
tavg <- sin(seq(0, 2 * pi, length.out = 365)) * 15 + 5
ck_growing_season(tavg, dates)
climatekit documentation built on May 9, 2026, 5:08 p.m.
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| ck_growing_season | R Documentation |
Growing Season Length
Description
Compute the growing season length following the ETCCDI definition: the number of days between the first occurrence of at least 6 consecutive days with daily mean temperature above 5 degrees C and the first span of 6 consecutive days with Tmean below 5 degrees C after July 1 (Northern Hemisphere) or January 1 (Southern Hemisphere). Calculated per year.
Usage
ck_growing_season(tavg, dates, lat = 50)
Arguments
tavg |
Numeric vector of daily mean temperatures (degrees C). |
dates |
Date vector of the same length as |
lat |
Numeric. Latitude in decimal degrees (used to determine hemisphere for end-of-season rule). Default 50 (Northern Hemisphere). |
Value
A data frame with columns period, value, index, and unit.
Examples
dates <- as.Date("2024-01-01") + 0:364
set.seed(42)
tavg <- sin(seq(0, 2 * pi, length.out = 365)) * 15 + 5
ck_growing_season(tavg, dates)
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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