MCD19A1

[afnanullah279]

Hi,
I am currently doing research on PM2.5 prediction by using both ground based and satellite data using Machine Learning approach. From Satellite data I am using MODIS Aqua/Terra combined product (MCD19A2 - Optical_Depth_550) and now I want to use MCD19A1 product surface reflectance green band aligned with MCD19A2 optical_depth_550 but not sure which one band should I use from surf_rel1-12. either surf_refl4 or other band but should be green band. please help me out.
Thanks in advance

[LP DAACx - lien]

Hello,
Sorry for the delay. We wanted to get confirmation about this from the PI/Developer of the MAIAC product because Band 4, 11, and 12 fall with in the green wavelength. He did confirm what we suspected, it is Band 4 that is aligned with the MCD19A2 optical_depth_550. Please let us know if you have any further questions.
Thanks,
Brett

[afnanullah279]

Thank you for your kind response. could you please provide the details of Sur_refl1-12 details like bands name with wavelength.

[LP DAACx - lien]

Absolutely, please go to the MODIS Overview site as that has lots of great information including the complete list of the 36 MODIS spectral bands and there pertinent information: https://lpdaac.usgs.gov/data/get-started-data/collection-overview/missions/modis-overview/
Thanks,
Brett

[afnanullah279]

Thanks for your kind response. Could be please tell me which bands should I use if I want to use RGB wavelength bands. Please mention Bands names.

Thanks

[LP DAACx - lien]

Hello,
MODIS true color band combination is 1,4,3 RGB. You may need to stretch it sometimes, but that should do it.
Thanks,
Brett