R.sun: Difference between revisions
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The 3 minute time step takes roughly ten times as long to run as the 30 minute timestep. | The 3 minute time step takes roughly ten times as long to run as the 30 minute timestep. | ||
[[Category: Documentation]] | |||
Revision as of 09:57, 19 May 2009
Help page
- r.sun manual page
Tips
Testing
Create an artificial surface containing a Gaussian mound:
r.surf.volcano out=gauss method=gaussian kurtosis=1
Time step
The following three images demonstrate the effects of using different time step parameters.
r.sun -s elevin="gauss" glob_rad="rad.global.30minT" day=180 step=0.5
r.sun -s elevin="gauss" glob_rad="rad.global.15minT" day=180 step=0.25
r.sun -s elevin="gauss" glob_rad="rad.global.03minT" day=180 step=0.05
The 3 minute time step takes roughly ten times as long to run as the 30 minute timestep.