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wiki:exercise6c [2017/12/05 22:53] (current)
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 +====== Exercise 6c: Create shadow mask from digital surface model ======
 +
 +In this exercise, the following tools will be used:
 +  * pktools: pkdsm2shadow
 +
 +<note tip> We will treat the cloud mask as a digital surface model
 +</​note>​
 +
 +__Create cloud shadow mask based on cloud height__
 +
 +<code bash>
 +pkdsm2shadow -i ${OUTPUTDIR}/​exercise6/​cloudmask_dil.tif -o ${OUTPUTDIR}/​exercise6/​shadowmask.tif -sza 20 -saa 155 -f 1 -s 1800 -ct ${OUTPUTDIR}/​exercise6/​cloudmask_ct.txt
 +</​code>​
 +
 +<note tip>
 +Try different cloud heights using the scale option (-s), Sun zenith angles and Sun azimuth angles
 +</​note>​
  
wiki/exercise6c.txt ยท Last modified: 2017/12/05 22:53 (external edit)