Description

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.

Resources

Name	Format	Description	Link
Agroclimate Interactive Maps (French)	HTML		https://agriculture.canada.ca/atlas/agclimat
Agroclimate Interactive Maps (English)	HTML		https://agriculture.canada.ca/atlas/agclimate
Pre-packaged GeoTIF files (No linguistic component)	Unknown		https://agriculture.canada.ca/atlas/data_donnees/agClimate/data_donnees/tif/gd/
Data Product Specification (English)	PDF		https://agriculture.canada.ca/atlas/data_donnees/agClimate/supportdocument_documentdesupport/en/ISO_19131_AgClimate_-_Data_Product_Specification.pdf
Using AAFC Climate Services (English)	PDF		https://agriculture.canada.ca/atlas/data_donnees/agClimate/supportdocument_documentdesupport/en/Using%20AAFC%20Climate%20Services.pdf
Data Product Specification (French)	PDF		https://agriculture.canada.ca/atlas/data_donnees/agClimate/supportdocument_documentdesupport/fr/Donnees_agroclimat_-_SPC.pdf
Using AAFC Climate Services (French)	PDF		https://agriculture.canada.ca/atlas/data_donnees/agClimate/supportdocument_documentdesupport/fr/Utilisation%20des%20services%20climatologiques%20d'AAC.pdf
Growing Degree Days	Ersi REST		https://agriculture.canada.ca/imagery-images/rest/services/agclimate/dry_spell/ImageServer
Growing Degree Days	Ersi REST		https://agriculture.canada.ca/imagery-images/rest/services/agclimat/periode_seche/ImageServer

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