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Content which is associated solely with the Tropical Rainfall Measuring Mission.

GPM Sees Weekend Texas Tornadoes

GPM Sees Weekend Texas Tornadoes
Stormy spring weather over the Southwest popping up during the past weekend with at least twenty tornadoes sightings over Texas on Sunday April 26, 2015. The GPM core Observatory satellite had a good view of severe storms developing yesterday through central Texas when it flew over at 2134 UTC (4:42 PM CDT). Large hail and heavy rainfall was associated with some of these storms. This image shows a 3-D view of severe weather over Texas using data from the first space-borne Ku/Ka-band Dual-frequency Precipitation Radar (DPR) on board the GPM Core Observatory satellite. Ku Band radar from this

A GPM View of Tornado Spawning Thunderstorms

A GPM View of Tornado Spawning Thunderstorms
Twelve tornado sightings reported to NOAA yesterday were associated with severe thunderstorms extending from the Texas Gulf coast, through Oklahoma and Kansas. The GPM core observatory satellite had a good look at this area of severe weather on April 17, 2015 at 0003 UTC (April 16, 2015 at 7:03 PM CDT). A precipitation analysis using GPM's Microwave Imager (GMI) shows that some of these severe storms were dropping rain at a rate of over 86 mm (about 3.4 inches) per hour. Reflectivity data from the Ku band on GPM's dual frequency radar was used to construct this 3-D view of tornado spawning

GPM Sees Remnants of Joalane

GPM Sees Remnants of Joalane
The GPM core observatory satellite had a last look at the remnants of Cyclone Joalane in the South Indian Ocean on April 14, 2015 at 1135 UTC (about 16:35 Local Time). GPM's Microwave Imager (GMI) instrument found very little rainfall around Joalane's center but light to moderate rainfall in bands on the outer edges of the rapidly weakening tropical cyclone.

TRMM Mission Comes to an End

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In 1997 when the Tropical Rainfall Measuring Mission, or TRMM, was launched, its mission was scheduled to last just a few years. Now, 17 years later, the TRMM mission has come to an end. NASA and the Japan Aerospace Exploration Agency (JAXA) stopped TRMM’s science operations and data collection on April 8 after the spacecraft depleted its fuel reserves.

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TRMM Comes to an End after 17 Years

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Friday, April 10, 2015
In 1997 when the Tropical Rainfall Measuring Mission, or TRMM, was launched, its mission was scheduled to last just a few years. Now, 17 years later, the TRMM mission has come to an end. NASA and the Japan Aerospace Exploration Agency (JAXA) stopped TRMM’s science operations and data collection on April 8 after the spacecraft depleted its fuel reserves. TRMM observed rainfall rates over the tropics and subtropics, where two-thirds of the world’s rainfall occurs. TRMM carried the first precipitation radar flown in space, which returned data that were made into 3-D imagery, enabling scientists...
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TRMM Measures Rainfall In Ikola And Joalane

TRMM Measures Rainfall In Ikola And Joalane
Since being launched in November 1997 the TRMM satellite produced huge volumes of precise precipitation measurements for use in climatology . Near real time collection of data also provided valuable information such as rainfall distribution, three dimensional structure and the stages of development for tropical cyclones. The TRMM satellite saw two tropical cyclones with successive orbits over the the South Indian Ocean on Tuesday April 7, 2015. Cyclone Ikola was the first to come into view when TRMM passed over at 1646 UTC and then the satellite had a good look at cyclone Joalane at 1755 UTC

GPM Looks Into Cyclone Joalane's Eye

GPM Looks Into Cyclone Joalane's Eye
Cyclone Joalane had developed a small clear eye when the GPM core observatory satellite passed above on April 7, 2015 at 1436 UTC. GPM's Microwave Imager (GMI) data showed that the heaviest rain was falling at a rate of over 78.6 mm (3 inches) per hour in a feeder band wrapping around Joalane's eastern side. This simulated 3-D flyby around Joalane was made using data from the Ku band on GPM's dual frequency radar. Those radar data discovered that the intense thunderstorms, reaching heights above 16 km (9.9 miles), were located where the heaviest rainfall was measured by GPM's GMI.

GPM Measures Rain in Cyclone Joalane

GPM Measures Rain in Cyclone Joalane
Two powerful tropical cyclones called Ikola and Joalane are now moving through the South Indian Ocean. The GPM core observatory satellite flew over intensifying cyclone Joalane in the South Indian Ocean on April 6, 2015 at 0406 UTC. GPM's Microwave Imager(GMI) found that intense convective thunderstorms within Joalane were dropping rain at a rate of over 63 mm (2.5 inches) per hour. Cyclone Joalane was located northeast of Mauritius at the time of this GPM pass. A 3-D view of Joalane's vertical precipitation structure was constructed from GPM's Radar (Ku Band) data. This cross section shows

Cyclone Ikola

Cyclone Ikola
The TRMM satellite's Microwave Imager (TMI) instrument collected data used in this rainfall analysis when the satellite flew over tropical storm Ikola in the South Indian Ocean on April 5, 2015 at 1722 UTC. TMI data revealed the location of rain falling at a rate of over 50 mm (amost 2 inches) per hour around Ikola's eye.

GPM Saw Deadly Maysak Approaching The Philippines

GPM Saw Deadly Maysak Approaching The Philippines
Typhoon Maysak caused the reported deaths five people in the Federated States of Micronesia and as a tropical storm killed seven others when it hit the the north-eastern Philippines. The GPM core observatory satellite passed above dissipating typhoon Maysak when it was approaching the Philippines on April 3, 2015 at 2326 UTC. An analysis of rainfall from GPM's Microwave Imager (GMI) showed that Maysak was dropping rain at a rate of over 69 mm (2.7 inches) per hour. Vertical wind shear was causing typhoon Maysak to weaken as it moved toward the Philippines but data from GPM's Dual-Frequency
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