TRMM/PR data distribution resumes during the experimental operation period. The satellite has descended to an altitude of around 350 km on February 12, 2015, which is the original nominal altitude before 2001. Verification of the data quality concluded and JAXA and PPS started distribution of PR data around the 350 km altitude (orbit number from 98231) to the public. PR available data period around 350 km altitude will be about 40 days since February 12, 2015. Please see TRMM/PR data distribution for further information and for the data locations.

Tropical cyclone Eunice became the fourth tropical cyclone of the 2015 Southern Indian Ocean season when it formed well east of Madagascar on January 27, 2014. Maximum sustained winds within the tropical cyclone have increased to about 85kts (~98 mph) and Eunice is predicted by the Joint Typhoon Warning Center (JTWC) to continue becoming more powerful as it travels toward the southeast. The GPM (core satellite) flew directly over the eye of newly formed tropical cyclone on January 28, 2015 at 1049 UTC. GPM's Microwave Imager (GMI) found that rain was falling at a rate of only 30.2 mm (about 1

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

On January 16, 2015 tropical storm Mekkhala became the first western Pacific typhoon of the year just before hitting the eastern Philippines. This image shows rainfall derived from data captured by the GPM (core satellite) on January 16, 2015 at 2200 UTC. This was only about four hours after Mekkhala was upgraded to a typhoon. GPM's Microwave Imager (GMI) found rain falling at a rate of over 70.7 mm (about 2.8 inches) per hour in storms southwest of the typhoon's eye. Rainfall over the Philippines, enhanced by typhoon Mekkhala, was analyzed using near real time merged satellite data (3B42)