Wednesday, April 3, 2013

WIMsoft trial

A post regarding my adventures with MODIS data

Summary

  • Saw images in Window environment
  • unable to achieve goal with WIM evaluation software
  • WAM required to handle atmospheric correction
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Aim :  Create true colour RGB image from MODIS Level 1B

MODIS Level 1B

  • Calibrated
  • Not atmospherically corrected
Why 
  • Atmospheric Correction required for Chlorophyll Algorithms
  • RGB image required in write up
  • Familiarization with WIM software

Exercise : Exercises_modis_250m.pdf

Download data Reverb NASA

Create a control file
Control specifies

  • input directory , data file 1 line
  • input files, in this case, 4 lines
  • flags indicating bands to process, 1 line
  • output direction, line 1

Specifies the band to process

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