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Land Block Details
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Growing degree days (GDD), or heat units, are used to estimate the growth and development of certain crops and pests during the growing season.
The dataset - What is it?
GDD are the total number of degrees Celsius that the mean daily temperature is above a base threshold temperature (10 degrees Celsius) in a year.
This data set presents a series of maps that show how the frequency of the growing degree days may alter for a mid-century and an end of century timeframe under various climate change scenarios.
Why it's important
GDD can be a useful tool for farmers, gardeners, and researchers to predict plant growth and development, and make informed decisions about when to plant, fertilize, and harvest their crops.
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How to use this information safely
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Fitness for purpose / limitations
This table indicates whether the dataset is suitable for different types of questions at different scales.
Note: Users should carefully consider their purpose as this dataset may not be suitable.
Operational
Absolute
Relative
Screening/scoping
Block/farm
No
No
No
Maybe
Multi-farms(5+)
Maybe
Maybe
Maybe
Yes
Catchment
Yes
Yes
Yes
Yes
National/regional
Yes
Yes
Yes
Yes
Caveats
The climate information is too coarse for use at finer scales.
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Please note:
You can use this information to help form an understanding of how Growing Degree Days may impact on a land use option in your rohe (locality). However, you should seek further advice from a suitably qualified person before making land-use decisions.
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