Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA's TRMM satellite sees birth of Arabian Sea cyclone

25.10.2012
NASA's TRMM satellite measured rainfall and towering clouds within the Arabian Sea's first tropical cyclone of the season as it passed overhead from space. Meanwhile, the infrared AIRS instrument aboard NASA's Aqua satellite noticed that strong thunderstorms surrounded the center of the storm. Tropical Cyclone 1A is expected to be short-lived as it heads for a landfall in Somalia on Oct. 25.

Since it was launched in 1997 the Tropical Rainfall Measuring Mission (TRMM) satellite has been useful for monitoring tropical cyclones in the tropics. TRMM passed above the first tropical cyclone of 2012 (TC01A) as it was forming in the Arabian Sea on October 2012 at 1513 UTC (11:13 a.m. EDT). Rainfall from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) were overlaid on an enhanced infrared image from TRMM's Visible and InfraRed Scanner (VIRS) to provide a complete picture of rainfall rates occurring within the storm.


TRMM passed above the first tropical cyclone of 2012 as it was forming in the Arabian Sea on October 2012 at 11:13 a.m. EDT. TRMM saw that rain at the surface was falling at a rate of up to 41 mm/hour (~1.6 inches) and thunderstorms within were reaching heights of over 16 km (~9.9 miles).

Credit: SSAI/NASA, Hal Pierce

TRMM PR and TMI data showed that rain at the surface was falling at a rate of up to 41 mm/hour (~1.6 inches) in the forming tropical cyclone. Bands of thunderstorms were also wrapping tightly into a well-defined low level center of circulation. TRMM PR data also was also used to create a 3-D image that showed the vertical structure of convective storms in the area. The view showed some towering convective storms were reaching heights of over 16 km (~9.9 miles).

Another satellite passed over TC01A and captured infrared data on the storm, revealing temperature of cloud tops. The colder the cloud top, the higher the thunderstorm is in the atmosphere, and the more powerful the storm. The Atmospheric Infrared Sounder (AIRS) instrument aboard NASA's Aqua satellite captured infrared imagery of Tropical Storm 01A on Oct. 24 at 5:35 a.m. EDT (0935 UTC) that showed the strongest thunderstorms surrounded the center of circulation. Those thunderstorms were reaching high into the troposphere where cloud top temperatures are as cold as -63 Fahrenheit (-52 Celsius).

On Oct. 24 at 1500 UTC (11 a.m. EDT), TC01A had maximum sustained winds near 35 knots (~40 mph). It was located about 300 nautical miles east-southeast of Cape Guardafui, Somalia, near 10.4 North latitude and 55.7 East longitude. TC01A was moving to the west at 16 knots and is expected to move to the west-southwest over the next couple of days before making landfall south of Cape Guardafui, Somalia. Cape Guardafui is located in the northeastern Bari province and forms the geographical point of the Horn of Africa.

Tropical cyclone 01A is predicted by the U.S. Navy Joint Typhoon Warning Center (JTWC) to hit northeastern Somalia on October 25, 2012 with wind speeds of about 35 knots (~40 mph).

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov

More articles from Earth Sciences:

nachricht World’s oldest known oxygen oasis discovered
18.01.2018 | Eberhard Karls Universität Tübingen

nachricht A close-up look at an uncommon underwater eruption
11.01.2018 | Woods Hole Oceanographic Institution

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Let the good tubes roll

19.01.2018 | Materials Sciences

How cancer metastasis happens: Researchers reveal a key mechanism

19.01.2018 | Health and Medicine

Meteoritic stardust unlocks timing of supernova dust formation

19.01.2018 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>