Due to recent changes to popular web browsers (i.e. Firefox, Edge, Chrome, etc.)  PPS's gpmweb2 FTP content which was viewable with a web browser may no longer display. This content will be moving to an alternate 'HTTPS' service.  

Consequently, all the old links and source material referencing  ftp://gpmweb2 will be updated to refer to 'https://gpmweb2https' once this service is activated for the PPS public website: 

https://pps.gsfc.nasa.gov

These changes and the new 'HTTPS' service are expected to go into effect around or before the next PPS preventive maintenance downtime on Tuesday May 04, 2021 (TBD).

For the present time; Windows FTP clients (winscp, filezilla, etc.) can continue to access the 'ftp://gpmweb2.pps.eosdis.nasa.gov' area content, as well as can Linux (Firefox) browsers.

(Example of ftp address that will be changing over to 'HTTPS' service):
ftp://gpmweb2.pps.eosdis.nasa.gov/pub/GPMfilespec/filespec.GPM.pdf

We will inform you once these changes have been made and provide any other necessary details at that time. We apologize for this short notice and any inconvenience that this may cause.  We appreciate your patience and understanding.  Please let us know if you have any questions.