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Youssef, Thanks for your message. I am somewhat surprised you didn't receive a reply before now. I think your post may have been overlooked because you did not designate a particular data center. To get started, I would examine this site: https://lance.modaps.eosdis.nasa.gov/ The data latency for va...

Hello,

This thread may address your question:
viewtopic.php?t=4406

You are invited to the NASA Earthdata webinar, “Analyzing Precipitation Extremes Using Cloud Computing” to be held Monday October 30, 2023, at 2:00 PM EDT (UTC/GMT-4). *Please excuse any duplicates for those of you on the original invite list* Webinar POC: Jennifer Brennan, Host, NASA ESDIS Communic...

The Goddard Earth Sciences Data and Information Services Center (GES DISC) has created a new mailing list for announcements. It is expected that this will be a very low volume mailing list, normally limited to one message a month, a digest of GES DISC activities. This will include articles – data re...

Hello,

This is the reply from our MERRA-2 data team:

"The current MERRA-2 aerosol model doesn’t include aerosol-cloud interactions, and thus doesn’t produce the parameters such as the aerosol number concentrations."

Thank you for providing this detailed description.

Hello,

Our MERRA-2 data and subject matter experts will examine your question and formulate a reply shortly.

From our data specialist: "I am glad that my previous response was helpful. The MERRA-2 reanalysis, including aerosol reanalysis, is not pure observation. It results from assimilating various observations into a model, i.e., the NASA GEOS model. Thus, you can use PM2.5 from the dataset M2TMNXAE...

From our data specialist: "Regarding the question posted at https://forum.earthdata.nasa.gov/viewtopic.php?t=4594&p=16264#p16264 , your method for calculating the monthly mean BCSMASS (M2TMNXAER) from the hourly mean (M2T1NXAER) is incorrect. The two datasets, i.e., M2T1NXAER for hourly mea...

Hello,

Our MERRA-2 data specialists will be examining your question. I have brought it to their attention.