MCD19A2 data process

[zxc_manchester]

Hi, Sir

Hope everything is fine

1. Recently, I try to match MCD19A2 with MOD03, but the MCD19A2 data without geolocation information, both are 1-km spatial resolution. I don't know how to deal with this problem.

2. I attempted to extract the AOD_550nm in MCD19A2 for the known latitude and longitude sites. But MCD19A2 data without geolocation information. Meanwhile, I know that each pixel of MOD021KM corresponds to that of MOD03, but I subsequently want to match MCD19A2 with MOD021KM. these data all are 1-km spatial resolution, But, I don't know how the MCD19A2 data match with MOD03. So, could you please help me give some suggestions.

3. In process the MCD19A2 data, I want to know which layer corresponds to Terra or Aqua so that I can match the MCD19A2 with MOD or MYD.

Best wishes