Weather related calculations for crops are provided for a specified period including growing degree days, cumulative weather variables, the number of stress days over a baseline temperature and mean daily weather. Additionally, a function is provided to download historical Australian weather data from the Queensland Government DES longpaddock website.
This package provides the calculation functions
cumulative, growing_degree_days,
stress_days_over and daily_mean. These
functions employ weather_extract which can be used
to extract column(s) or variable(s) between two specified dates
which can also be employed directly.
Day of year can be calculated from a date using
day_of_year and the calculation reversed using
date_from_day_year. Since a crop may be harvested in
a different year than it is sown, then the harvest day of year in
which it is sown may be more appropriate and can be obtained with
day_of_harvest.
The function get_silodata and is available to
retrieve SILO weather data for one location from Queensland
Government DES longpaddock website
https://www.longpaddock.qld.gov.au/. Use
get_multi_silodata to retrieve multiple locations.
Maintainer: Peter Baker drpetebaker@gmail.com (ORCID)
Authors:
Miranda Mortlock miranda.mortlock@qut.edu.au (ORCID)
Useful links: