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For the third consecutive year, NASA’s Global Precipitation Measurement Mission applications team and University of Coimbra’s Earth and Space Science Center (CITEUC Portugal) collaborated to host the GPM Mentorship Program. The 2024 initiative built on previous years' successes, supporting new and existing user communities and providing a tailored hands-on learning experience in using GPM data for applications. It gave participants an overview of state-of-the-art GPM satellite-based precipitation estimates and provided users with examples of applying GPM data to support real-world problems

Reduced Data Quality of IMERG Early and Late HDF Files

On 18 October 2024 PPS received a corrupted IR file for 15:00 UTC, which caused all subsequent IR processing to fail and not contribute to the Early Run from 16:00 UTC on 18 October until 05:00 UTC on 20 October, and to the Late Run from 16:00 UTC on 18 October until 20:00 UTC on October 19. Subsequently, PPS manually skipped past the defective IR data file and ran all the IR data that were missed, and then reran both Early and Late for the periods listed above. These rerun products have replaced the earlier products on the fileserver. Please note the out-of-order file times to confirm which
Map IMERG rainfall totals from Milton.
While the GPM Core Observatory’s instruments show exceptional detail in Milton’s rainfall structure in several overpasses throughout the week, the IMERG global multi-satellite product provides a broader overview of precipitation along Milton’s track as a continuous picture from development through landfall. Download this video (right-click -> "save as") The above animation shows IMERG precipitation rates (in blue/yellow shading) and accumulations (in green/purple shading) from Oct. 5-10, 2024. Cloudiness is shown in shades of white/gray using infrared geosynchronous satellite data. While
GPM data shows precipitation within Hurricane Milton over the Gulf of Mexico on Oct. 7, 2024.
Updated Oct. 10, 2024 Click here for a visualization of IMERG precipitations and totals from Hurricane Milton. After forming in the Bay of Campeche, Hurricane Milton underwent a remarkable period of rapid intensification with its central pressure falling from 1007 mb (29.74 inches of mercury, inHg) at 11:00 a.m. EDT Oct. 5 to 897 mb (26.49 inHg) at 8:00 p.m. EDT on Oct. 7. At this time Milton became the fifth most intense hurricane in the Atlantic Basin on record in terms of central pressure, just behind Hurricane Rita (2005) on that list, and only the sixth storm in the Atlantic to have a
Map of IMERG rainfall totals from Hurricane Helene.
After tracking through the eastern Gulf of Mexico and battering much of the west coast of Florida with strong winds and storm surge, Hurricane Helene made landfall in the Big Bend region of Florida’s northwest coast at 11:10 pm EDT about 10 miles west-southwest of Perry, Florida, as a powerful Category 4 hurricane with maximum sustained winds reported at 140 mph by the National Hurricane Center (NHC). Hurricane Idalia, a strong Category 3 storm at the time, also made landfall in the Big Bend last year. Animation of NASA IMERG precipitation rates and totals from Hurricane Helene from Sept. 23 -