Crop (corn) heat units
Crop Heat Units (CHU) are calculated on a daily basis, using the maximum and minimum temperatures in order to account for a crop’s negative response to higher temperatures.
The formula used to calculate the CHU value for a day is:
(1.8 × (Minimum Temperature − 4.4) + 3.33 × (Maximum Temperature − 10) − 0.084 × (Maximum Temperature − 10)²) ÷ 2.0
CHU values are only accumulated during the Growing Season, April 1 through October 31.
Simple
- Date ( RI_367 )
- 2017-05-08
- Date ( RI_366 )
- 2017-05-08
- Presentation form
- mapDigital;carteNumérique RI_391
- Status
- completed; complété RI_593
- Maintenance and update frequency
- asNeeded; auBesoin RI_540
- Keywords ( RI_529 )
-
- agclimate
- CH
- Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
-
- Temperature
- Farmlands
- Agriculture
- Crops
- Precipitation
- Use limitation
- Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
- Access constraints
- license; licence RI_606
- Use constraints
- license; licence RI_606
- Spatial representation type
- vector; vecteur RI_635
- Spatial representation type
- grid; grille RI_636
- Metadata language
- zxx; CAN
- Topic category
-
- Climatology, meteorology, atmosphere
- Begin date
- 2012-09-03
))
- Reference system identifier
- http://www.epsg.org/ / EPSG:3857 / 8.3.4
- OnLine resource
-
Data Product Specification (English)
(
HTTPS
)
Supporting Document;PDF;eng
- OnLine resource
-
Crop (Corn) Heat Units
(
HTTPS
)
Web Service;WMS;zxx
- OnLine resource
-
Using AAFC Climate Services (French)
(
HTTPS
)
Supporting Document;PDF;fra
- OnLine resource
-
Data Product Specification (French)
(
HTTPS
)
Supporting Document;PDF;fra
- OnLine resource
-
Agroclimate Interactive Maps (English)
(
HTTPS
)
Application;HTML;eng
- OnLine resource
-
Agroclimate Interactive Maps (French)
(
HTTPS
)
Application;HTML;fra
- OnLine resource
-
Crop (corn) heat units
(
ESRI REST: Image Service
)
Web Service;ESRI REST;zxx
- OnLine resource
-
Pre-packaged GeoTIF files (No linguistic component)
(
HTTPS
)
Dataset;GeoTIF;zxx
- OnLine resource
-
Using AAFC Climate Services (English)
(
HTTPS
)
Supporting Document;PDF;eng
- OnLine resource
-
Crop (Corn) Heat Units
(
ESRI REST: Image Service
)
Web Service;ESRI REST;zxx
- File identifier
- 07875f11-c342-4450-bdaa-0cdeaf43c0c9 XML
- Metadata language
- eng; CAN
- Character set
- utf8; utf8 RI_458
- Hierarchy level
- series; série RI_623
- Date stamp
- 2023-02-10T15:34:24
- Metadata standard name
- North American Profile of ISO 19115:2003 - Geographic information - Metadata
- Metadata standard version
- CAN/CGSB-171.100-2009
Overviews

Spatial extent
))
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