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Intermittent PPS Network Outages From Fri Feb 19 - Mon Feb. 22, 2016

UPDATE 2/22/16: The network upgrades have finished and normal service has been restored. Due to scheduled external GSFC network upgrades, PPS will experience intermittent and unpredictable network outages during the period of Friday February 19, 2016 (starting 8:00PM EST-0100 UTC) through Monday February 22, 2016 (3:00 AM EST-0800 UTC). This work will impact access to the following PPS services: PPS ftp production data (arthurhou) PPS ftp NRT data-Near Realtime (jsimpson) PPS Public website: http://pps.gsfc.nasa.gov/ STORM: https://storm.pps.eosdis.nasa.gov/ PMM website: http://pmm.nasa.gov

Potential Upcoming Data Outages Due to Severe Winter Storm

The Washington, DC area is about to get hit with a record-level snow storm, with attendant disruptions to work schedules, travel, communications, and power. If you find that the TMPA-RT products drop out, it is safe to assume that some combination of these effects is preventing production, and we will work to restore service when that is possible.

Positional Algorithm Issue with GMI 85GHz

One of our scientists noticed that the 85GHz H and V channels have missing values in ascending passes just south of 20 deg S. In that region it appears consistently since 10:45UTC which is the earliest we checked. The other channels seem fine. The counts for the 85GHz channels appear to be fine as is the geolocation. However both the 1B and 1 Base files have the missing values in that area. We are checking what is causing the algorithm to list the values as missing. Please keep this in mind when using those channels.

The Evolution of NASA Precipitation Data

The Evolution of NASA Precipitation Data
Tuesday, September 29, 2015
NASA’s global precipitation data and data processing systems have come a long way from the launch of TRMM in 1997 to the ongoing GPM mission. Just before midnight Eastern Daylight Time on June 15, 2015, a fireball appeared over central Africa, streaked across Madagascar, and tracked across the uninhabited Southern Indian Ocean. This was the fiery end of the joint NASA/Japan Aerospace Exploration Agency (JAXA) Tropical Rainfall Measuring Mission (TRMM). TRMM’s homecoming after more than 17 years in orbit also marked the end of the first major satellite mission specifically designed to gather...
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PPS Web Services Restored

PPS web services are now functioning normally. PPS has identified and fixed the previous production web server problem which caused the intermittent unavailability and/or slow response times experienced for the last few days. If you experience any further problems or inconsistencies with PPS web services including: ftp://arthurhou.pps.eosdis. nasa.gov ( GPM FTP data) http://pps. gsfc.nasa.gov (PPS home page) https://storm-pps.gsfc.nasa.gov (PPS STORM) http://registration.pps.eosdis.nasa.gov (PPS GPM registration) http://ceospc.gsfc.nasa.gov Once again, we sincerely appreciate everyone's

PPS Web Services still Temporarily Slow or Intermittent

PPS web services are still experiencing intermittent unavailability and/or slow response times and our staff is working to resolve this problem as soon as possible. This problem impacts access to various PPS web services: ftp://arthurhou.pps.eosdis.nasa.gov (GPM FTP data) http://pps.gsfc.nasa.gov (PPS home page) https://storm-pps.gsfc.nasa.gov (PPS STORM) http://registration.pps.eosdis.nasa.gov (PPS GPM registration) http://ceospc.gsfc.nasa.gov GPM near real time operations and data distribution as well as PPS GPM operations are NOT affected. Only the PPS GPM data distribution is affected. We

PPS Network Instability

Presently, PPS web services are experiencing intermittent unavailability and/or slow response times. PPS is aware of this issue and our System Programmers are working diligently to correct these issues. The current anomaly affects our arthurhou server which include the PPS Public site http://pps.gsfc.nasa.gov/ , FTP services, STORM: https://storm.pps.eosdis.nasa.gov/ and THOR (THOR online) , etc. We hope to have all these services restored to normal as soon as possible and will keep you informed as the situation changes. We regret any inconvenience that this may cause and kindly appreciate

PPS Data Outage

Effective about 18 UTC July 21 the GPM MOC stopped sending data to the PPS. This was not a satellite or instrument issue. The problem appeared to be a network connection issue at the Emergency MOC which is currently receiving data as part of a monthly test of the backup facility. Effective 21:41 UTC the data flow from the MOC to PPS resumed. Apparently there was a major network issue on that part of the network. It has now been fixed and MOC is sending data again.

Initial IMERG Products Released

PPS is re-releasing the first public version IMERG products The Integrated Multi-satellitE Retrievals for GPM (IMERG) merges precipitation estimates from passive microwave sensors, geo-IR, and monthly surface precipitation gauge analysis data (where available) to provide half-hourly and monthly precipitation estimates and related fields on a 0.1° lat./long. grid over the domain 60°N-S. The current period of record is mid-March 2014 to the present (delayed by about 3 months) .Please refer to the IMERG Release notes , the technical IMERG document and the IMERG Algorithm Theoretical Basis
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