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 New Study Will Help Find the Best Locations for Thermal Power Stations in Iceland
19.01.2017 | University of Gothenburg

nachricht Water - as the underlying driver of the Earth’s carbon cycle
17.01.2017 | Max-Planck-Institut für Biogeochemie

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Quantum optical sensor for the first time tested in space – with a laser system from Berlin

For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.

According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Tracking movement of immune cells identifies key first steps in inflammatory arthritis

23.01.2017 | Health and Medicine

Electrocatalysis can advance green transition

23.01.2017 | Physics and Astronomy

New technology for mass-production of complex molded composite components

23.01.2017 | Process Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>