Transcript Folie 1

APSIM Factorials
Factorials in APSIM
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Why use Factorials?
Basics of Factorial Configuration
Using Met components
Using Soil Components
Using Manager Components
Advanced Factorials
APSIM Factorials
Why use Factorials?
APSIM Factorials
Single Crop for CropARM
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47 x Site
4 x Soil
3 x Starting Water
3 x Cultivar
4 x Sowing Density
5 x Sowing Dates
3 x Starting Nitrogen
3 x Row Spacing
Total = 304,560 Runs
APSIM Factorials
Using Factorials
• Click the Factorial button
on the Toolbar
• Right click – Add
Factor/Folder
• Drag items from the
simulation tree across to
the factor node
APSIM Factorials
Factorial Configuration
• Factorial Tree, Factor Targets
APSIM Factorials
Using Met Components
• 3 ways to add Met components
• Add multiple Met components
to a factor node.
• Single silo component with a list
of stations.
• Single met component with a
list of file names.
APSIM Factorials
Using Soil Components
APSIM Factorials
Using Manager Components
• Use Sowing Rule to manage multiple
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Cultivars
Densities
Dates
Row Spacing
APSIM Factorials
Multiple Simulations (304,560)
APSIM Factorials
Advanced Factorials
• Soils are not the same across all
sites.
• 5 sites x 4 soils x 100 (5x4x4) sowing
options = 2,000 runs..
• Add Folders & Sub Folders, which
will change the way the factorials are
calculated.
• It will make a list of the lowest folder
nodes in the tree.
APSIM Factorials
Advanced Factorials
• Each identified folder is treated as a
single set of factorials. These sets are
then added together, not multiplied.
• WA has 1 site x 1 soil x 100 sowing.
Site & Soil are overridden.
100 Simulations
• SA has 1 site x 2 soils x 100 sowing.
200 Simulations.
• ALL has 3 sites and inherits all of the
soils. 3 x 4 x 100 = 1200 Simulations
APSIM Factorials
Summary
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How Factorials can be used.
Factorial Configuration Basics
Using Met components.
Using Soil Components.
Using Manager Components.
Advanced Factorials.