tropical cyclones

TRMM reign of rain screenshot
By Ellen Gray , NASA Goddard Space Flight Center Original www.nasa.gov Article (published 11/27/12) When it rains it pours, goes the saying, and for the last 15 years, the data on tropical rainfall have poured in. NASA's Tropical Rainfall Measuring Mission (TRMM) was launched on Nov. 27, 1997, and for the last decade and a half has enabled precipitation science that has had far reaching applications across the globe. TRMM Project Scientist Scott Braun looks back at the legacy of the Tropical Rainfall Measuring Mission and a few of the major scientific milestones the satellite has helped...

TRMM at 15: The Reign of Rain

Submitted by JacobAdmin on Tue, 11/27/2012
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When it rains it pours, goes the saying, and for the last 15 years, the data on tropical rainfall have poured in. NASA's Tropical Rainfall Measuring Mission (TRMM) was launched on Nov. 27, 1997, and for the last decade and a half has enabled precipitation science that has had far reaching applications across the globe.

Tropical Cyclone Anais (01S) Intensifying

The first tropical cyclone of the 2012 South-West Indian Ocean season called Anais formed northeast of Madagascar yesterday. The TRMM satellite saw Anais on October 13, 2012 at 0805 UTC (~12:05 PM Local). TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) rainfall are shown on the right. Intense bands of rain are shown spiraling around the southern side of the intensifying tropical cyclone. TRMM's Precipitation Radar (PR) data were used to make the 3-D perspective image above. It shows that Anais' had a developing eye wall containing towering thunderstorms reaching an altitude of 15km

Tropical Cyclones In Three Oceans

The TRMM satellite saw tropical cyclones in three ocean basins today. TRMM flew nearly above tropical storm Patty in the Atlantic Ocean northwest of the Bahamas first on October 12, 2012 at 0326 UTC. It was night so an enhanced infrared image from TRMM's Visible and InfraRed Scanner (VIRS) was overlaid with a rainfall analysis derived from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) instruments. Patty's location, close to the edge of the TMI swath, is shown with a red tropical storm symbol. TRMM also viewed a developing tropical cyclone in the South-West Indian Ocean on October
Map of tracking hurricane Irene
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GPM: Hurricanes Beyond the Tropics

Submitted by JacobAdmin on Tue, 08/28/2012
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On August 28, 2011, Tropical Storm Irene hit Vermont, causing widespread damage and the worst flooding in 75 years. Irene's impact in New England shows that tropical cyclones can greatly affect regions outside the view of TRMM. The Global Precipitation Measurement (GPM) mission will build upon TRMM's legacy by examining a larger swath of Earth with more sensitive instruments.

 

Monsoon, Tropical Cyclones Bring Massive Flooding to Manila

Over the past two weeks, a combination of the southwest monsoon and tropical cyclones passing in the vicinity of the northern Philippines has resulted in massive flooding in and around the Philippine capital. It is the worst flooding there since Typhoon Ketsana in 2009, which devastated Manila and killed over 400 people throughout the country. The current flooding began at the end of July with the passing of Typhoon Saola (known as Gener in the Philippines) northeast of Luzon. Although the center of Saola made landfall in northern Taiwan and passed well to the east of Luzon, the storm's

Another Tropical Cyclone Developing

While Tropical storm Aletta is forecast to weaken and dissipate another tropical cyclone appears to be forming in the eastern Pacific south of Acapulco, Mexico. The TRMM satellite passed above this tropical disturbance (92E) on 18 May 2012 at 0957 UTC. Data captured with this pass by TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) instruments were used in the rainfall analysis shown. This analysis indicates that this area contained very heavy rainfall in the northeastern quadrant of the disturbance. Some storms were producing rainfall at a rate of over 50 mm/hr (~2 inches). A 3-D

TRMM Sees Tropical Cyclone 19S

Tropical cyclones are more likely to form in the northern hemisphere in May so tropical cyclone 19S is a little unusual. Tropical cyclone 19S attained tropical storm intensity in the Banda Sea on 7 May 2012. 19S is expected to quickly weaken to tropical depression intensity with wind speeds of about 25 kts (~29 mph) as it moves southward into the Timor Sea north of Australia. The TRMM satellite has been useful for monitoring the development of tropical cyclones over the global tropics. TRMM flew above tropical cyclone 19S during the daylight on 8 May 2012 at 0213 UTC. A rainfall analysis from

TRMM Sees Another Tropical Cyclone Developing

This has been an active tropical cyclone season in the South Indian Ocean. The TRMM satellite passed over another forming tropical cyclone (15s) in the South Indian Ocean on 2 March 2012 at 0140 UTC. A rainfall analysis from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) instruments is shown on the image above. This "top down" view shows that very heavy rainfall of over 50mm/hr (~2 inches) was occurring near the center of the storm's circulation. TRMM's Precipitation Radar (PR) was used in the image above to show the 3-D structure of the forming tropical cyclone. Powerful storm