Hello everyone!
Can any of you tell me how to download (directly without using special software) the AOD @ 550 nm data from the MODIS Terra (MOD04) and Aqua (MYD04) ver. 6.1 (Level 2)?
I am interested in:
- average daily values AOD @ 550;
- with resolution (in nadir) 5km x 5 km or at least 3 km x 3 km;
- for certain days during the observation period from Jan. 2004 to June 2021;
- for number of days ~ 300;
- for coordinates of the observation point (47.001N, 28.816E; h = 205 m a.s.l.);
- in urban environment.
Has anyone studied the appearance and influence of noise / errors in the recovered data (AOD, etc.) at the following transitions in resolution for nadir: 10km x 10km ---> 5km x 5km ---> 3km x 3km ---> 1km x 1km ...?
Dear Alexandr,
I highly recommend you to use Google Earth Engine. It is so applicable when it comes to dealing with big amount of data. Also, easily you can download AOD product of MODIS.
Hi Alexandr Aculinin
Please see the link below describing how you can easily download the data (1km) from GEE with the code:
https://developers.google.com/earth-engine/datasets/catalog/MODIS_006_MCD19A2_GRANULES
Best regards,
Ebrahim
Alexandr Aculinin You can download the MODIS AOD data after registering to the Earthdata Portal and with those credentials you can login and you can use the following links for your data download.
https://search.earthdata.nasa.gov/search?q=MOD04_3K
https://search.earthdata.nasa.gov/search?q=MYD04_3K
Dear Pawan,
Thank you very much for your advice. I have successfully used this direct links and downloaded few files. The output files have HDF-format and the next step will be the retrieving data of AOD@550 from HDF-files. Thanks.
Regards, Alexandr.
Dear Ashish ,
Thank you very much for your advice. I have successfully used this direct links and downloaded few files. The output files have HDF-format and the next step will be the retrieving data of AOD@550 from HDF-files. Thanks.
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