MCD19A2_MAIAC_AOD_Processing

This project processes MODIS (Moderate Resolution Imaging Spectroradiometer) Aerosol Optical Depth (AOD) data from the MCD19A2 product and creates a NetCDF file containing daily averaged AOD values. The script filters the data based on quality assurance flags, calculates daily averages, and stores the results in a structured NetCDF file.

MODIS Product Details

• Product: MCD19A2 (MODIS Terra and Aqua Combined Multi-Angle Implementation of Atmospheric Correction (MAIAC) Land Aerosol Optical Depth Daily 1km)
• Version: 6
• Parameters Used:
  • Optical_Depth_055 (AOD at 550 nm)
  • Optical_Depth_047 (AOD at 470 nm)
  • AOD_QA (Quality assurance flags)

Features

• Processes MODIS MCD19A2 AOD data for multiple orbits within a day
• Filters data based on quality assurance flags (values 1, 9, 8193, and 8201)
• Calculates daily averages for AOD at 550nm and 470nm
• Creates a structured NetCDF file with proper dimensions and attributes

Requirements

• Python 3.x
• NumPy
• netCDF4
• pyproj