Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

2 NASA satellites see TD11S going extra-tropical

01.02.2010
NASA's Tropical Rainfall Measuring Mission or TRMM satellite and NASA's Aqua satellite have observed the rainfall patterns and temperatures within Tropical Depression 11S, and they indicate the storm is becoming extra-tropical.

Tropical Depression 11S (TD 11S) had maximum sustained winds near 34 mph (30 knots) on January 29 at 09:00 UTC (4 a.m. ET). It was located about 320 nautical miles southeast of La Reunion Island, near 25.5 South and 59.8 East. It was moving southeast near 11 mph (10 knots).

The TRMM satellite, managed by both NASA and JAXA, took a look at the rainfall happening within TD 11S and noticed some shallower convection (showers and thunderstorms) continues to wrap into the storm's low-level center from the southwest quadrant of the storm. Despite the convection, TD11S's center is now fully exposed from the west which means that drier air or wind shear can enter into the storm and weaken it.

Another factor affecting the storm is an upper-level low, which is northwest of the 11S's center. That upper-level low is actually suppressing more convection in TD11S.

... more about:
»11S »AMSU-A »AQUA »Depression »NASA »TD11S »TRMM »tropical diseases

NASA's Aqua satellite passed over TD 11S and the Advanced Microwave Sounding Unit (AMSU-A) instrument aboard it measured the temperatures within TD 11S. AMSU-A a 15-channel microwave sounder designed primarily to obtain temperature profiles in the upper atmosphere (especially the stratosphere) and to provide a cloud-filtering capability for tropospheric temperature observations.

On January 28 at 1400 UTC (9:00 a.m. ET) AMSU-A showed that the lower-level center of the storm has a warm core center and that a cold core has developed aloft, which indicates that TD 11S may have already become more subtropical in nature.

A conversion to "extratropical" status means that the storm eventually loses its warm core and becomes a cold-core system. During the time it is becoming extratropical the cyclone's primary energy source changes from the release of latent heat from condensation (from thunderstorms near the storm's center) to baroclinic (temperature and air pressure) processes. When a cyclone becomes extratropical it will usually connect with nearby fronts and or troughs (extended areas of low pressure) consistent with a baroclinic (pressure) system. When that happens it appears the system grows larger while the core weakens.

TD11S isn't threatening any land areas, and is forecast to complete its transition to an extra-tropical storm over the weekend.

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

Further reports about: 11S AMSU-A AQUA Depression NASA TD11S TRMM tropical diseases

More articles from Earth Sciences:

nachricht Research sheds new light on forces that threaten sensitive coastlines
24.04.2017 | Indiana University

nachricht NASA sees the end of ex-Tropical Cyclone 02W
21.04.2017 | NASA/Goddard Space Flight Center

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

DGIST develops 20 times faster biosensor

24.04.2017 | Physics and Astronomy

Nanoimprinted hyperlens array: Paving the way for practical super-resolution imaging

24.04.2017 | Materials Sciences

Atomic-level motion may drive bacteria's ability to evade immune system defenses

24.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>