Growing Degree Days

Growing degree days (GDDs) are used to estimate the growth and development of plants and insects during the growing season. Growing Degree Day are computed by subtracting a base value temperature from the mean daily temperature and are assigned a value of zero if negative. Base temperatures are a point below which development does not occur for the organism in question. Growing Degree Day products are created for base 0, 5, 10 and 15 degrees Celsius.

GDD values are only accumulated during the Growing Season, April 1 through October 31.

Données et ressources

Info additionnelle

Champ	Valeur
Dernière modification	avril 17, 2026, 21:03 (TU)
Créé le	avril 17, 2026, 21:03 (TU)
contact_email	agri-geomatics-agrog@agr.gc.ca
contact_person	{"en": "Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch,agri-geomatics-agrog@agr.gc.ca", "fr": "Gouvernement du Canada; Agriculture et Agroalimentaire Canada; Direction générale de la science et de la technologie,agri-geomatics-agrog@agr.gc.ca"}
criticality_level	[]
data_dictionary	EPSG:3857,http://www.epsg.org/,8.3.4
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_published	2017-05-05 00:00:00
open_canada_keywords	{"en": ["GD", "agclimate", "Precipitation", "Farmlands", "Agriculture", "Temperature", "Crops"], "fr": ["GD", "agclimat", "Précipitation", "Terre agricole", "Agriculture", "Température", "Cultures"]}
open_canada_subject	["nature_and_environment", "science_and_technology"]
sensitivity_level	unrestricted
title_fr	Degrés-jours de croissance
update_frequency	as_needed