Crop Stress Index

Crop Stress Index The Crop Stress Index is the ratio of actual evapotranspiration (AET) to potential evapotranspiration (PET) express as: CSI = 1-(AET/PET) AET and PET are calculated within the Versatile Soil Moisture Budget (VSMB) model using temperature and precipitation data and a crop-specific biometeorological time scale model to estimate growth stage (Robertson, 1968), with crop specific phenological and crop water extraction coefficients taken from Chipanshi et al 2013. The WDI ranges between 0 and 1, with a value closer to 1 indicating higher stress Crop Stress Index is modelled for each climate station using measured precipitation and temperature 2021-11-15 Agriculture and Agri-Food Canada agri-geomatics-agrog@agr.gc.ca AgricultureAgricultureCrops Data Product Specification (English)PDF https://agriculture.canada.ca/atlas/supportdocument_documentdesupport/cropHealthIndices/en/ISO_19131_Crop_Health_Indices_-_Data_Product_specification.pdf Crop Health IndicesESRI REST https://agriculture.canada.ca/atlas/rest/services/imageservices/crop_health_indices/ImageServer Crop Health IndicesESRI REST https://agriculture.canada.ca/atlas/rest/services/imageservices/crop_health_indices/ImageServer Data Product Specification (French)PDF https://agriculture.canada.ca/atlas/supportdocument_documentdesupport/cropHealthIndices/fr/Indices_de%20sant%c3%a9_des_cultures_SPC.pdf Crop Health IndicesWMS https://agriculture.canada.ca/atlas/services/imageservices/crop_health_indices/ImageServer/WMSServer?request=GetCapabilities&service=WMS&layers=0&legend_format=image/png

The Crop Stress Index is the ratio of actual evapotranspiration (AET) to potential evapotranspiration (PET) express as:

CSI = 1-(AET/PET)

AET and PET are calculated within the Versatile Soil Moisture Budget (VSMB) model using temperature and precipitation data and a crop-specific biometeorological time scale model to estimate growth stage (Robertson, 1968), with crop specific phenological and crop water extraction coefficients taken from Chipanshi et al 2013. The WDI ranges between 0 and 1, with a value closer to 1 indicating higher stress Crop Stress Index is modelled for each climate station using measured precipitation and temperature

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Electronic Mail Address: agri-geomatics-agrog@agr.gc.ca

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