Hi all, for my thesis I am trying to download aerosol data from MERRA2. I would really like this data, since it goes back further than CAM4. However, I am working on a business-controlled laptop and cannot download any program required to retrieve the dataset files from the document with file links. I have never used wget before and got really confused.
Is there someone who can help me out by downloading it for me? I have the list of links ready-to-go.
MERRA2 aerosol data unable to download - who can do it for me?
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GES DISC - xpan2
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Re: MERRA2 aerosol data unable to download - who can do it for me?
Dear User,
Given your constraints and that you already know which collection and variables you're interested in, we recommend using a Python script to download the data instead of wget.
Please refer to these two tutorials and choose the one that best fits your situation:
1. How to Subset and Download Level 2, 3, and 4 GES DISC Data Using Python (https://disc.gsfc.nasa.gov/information/howto?title=How%20to%20Subset%20and%20Download%20Level%202,%203,%20and%204%20GES%20DISC%20Data%20Using%20Python)
2. How to Access GES DISC Data Using Python (https://disc.gsfc.nasa.gov/information/howto?keywords=python&title=How%20to%20Access%20GES%20DISC%20Data%20Using%20Python)
If we can be of any further assistance, please let us know.
Regards,
GES DISC User Services
Given your constraints and that you already know which collection and variables you're interested in, we recommend using a Python script to download the data instead of wget.
Please refer to these two tutorials and choose the one that best fits your situation:
1. How to Subset and Download Level 2, 3, and 4 GES DISC Data Using Python (https://disc.gsfc.nasa.gov/information/howto?title=How%20to%20Subset%20and%20Download%20Level%202,%203,%20and%204%20GES%20DISC%20Data%20Using%20Python)
2. How to Access GES DISC Data Using Python (https://disc.gsfc.nasa.gov/information/howto?keywords=python&title=How%20to%20Access%20GES%20DISC%20Data%20Using%20Python)
If we can be of any further assistance, please let us know.
Regards,
GES DISC User Services
Re: MERRA2 aerosol data unable to download - who can do it for me?
Thank you for the quick reply. I tried both options.
No. 1 gives the error message in the attached image. The problem is that I need a large amount of files. I need preferably daily aerosol data for the dust extinction AOT and organic carbon extinction AOT over the period 1981-01-01 to 2024-12-31. My spatial grid is West Africa.
The second option with search and download works, but takes ages and slows down my laptop to the point where it's unworkable. Also the files are huge (1GB each) since I can't select only two of the variables.
I don't understand why it has to be so difficult to access this data. With ERA5 and CAMS (for other variables) I had very little problems and the download was much more straightforward...
No. 1 gives the error message in the attached image. The problem is that I need a large amount of files. I need preferably daily aerosol data for the dust extinction AOT and organic carbon extinction AOT over the period 1981-01-01 to 2024-12-31. My spatial grid is West Africa.
The second option with search and download works, but takes ages and slows down my laptop to the point where it's unworkable. Also the files are huge (1GB each) since I can't select only two of the variables.
I don't understand why it has to be so difficult to access this data. With ERA5 and CAMS (for other variables) I had very little problems and the download was much more straightforward...
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