30-year Average Crop Heat Unit

Crop/Corn Heat Units (CHU) is a temperature-based index often used by farmers and agricultural researchers to estimate whether the climate is warm enough to grow corn. Daily crop heat units are calculated from minimum and maximum temperatures with separate calculations for day and night. The daytime relationship sets the minimum at 10 C for growth up to a maximum of 30 C, beyond which growth slows.

These values are calculated across Canada in 10x10 km cells.

Simple

Date ( RI_367 )
2021-10-06
Date ( RI_366 )
2021-10-06
RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca/
Presentation form
mapDigital;carteNumérique RI_391
Status
completed; complété RI_593
Maintenance and update frequency
irregular; irrégulier RI_541
Keywords ( RI_528 )
  • CHU
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Farmlands
  • Temperature
  • Agriculture
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
grid; grille RI_636
Metadata language
eng; CAN
Topic category
  • Climatology, meteorology, atmosphere
Begin date
1961-01-01
End date
2010-12-31
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Reference system identifier
http://www.epsg.org/ / EPSG:3857 / 8.3.4
RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca/
OnLine resource
Data Product Specification (English) ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Data Product Specification (French) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Pre-packaged ASCII Grid files (No linguistic component) ( HTTPS )

Dataset;ASCII Grid;zxx

OnLine resource
Pre-packaged Maps (English) ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Pre-packaged Maps (French) ( HTTPS )

Supporting Document;PDF;fra

File identifier
3eb98730-08af-4faf-8bb7-6b5d0369911d XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
series; série RI_623
Date stamp
2023-02-22T14:31:55
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca/
 
 

Overviews

overview
30yrchu.PNG

Spatial extent

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Keywords


Provided by

Associated resources

Not available