Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA eyes a 'decoupled' Tropical Depression Raymond

31.10.2013
Satellite data shows that the lower level circulation of Raymond decoupled from the middle layer of the storm.

When a Tropical Depression decouples, it means the layers of circulation in the atmosphere are no longer "stacked" on top of each other. NASA's Aqua satellite captured infrared data on Raymond that showed the strongest storms, associated with a mid-level circulation center, had broken away from the center.


On Oct. 29 at 4:59 p.m. EDT, NASA's Aqua satellite passed over Raymond, still a tropical storm and captured this infrared image of cloud top temperatures, showing the coldest (purple), strongest storms away from its center.

Credit: Image Credit: NASA JPL, Ed Olsen

Think of a tropical cyclone as having several layers of circulation, a lower level, mid-level and upper level. When one of those levels is pushed away from the others, much like pushing the middle of a haystack, the storm weakens. That's what has happened to Raymond.

On Oct. 29 at 4:59 p.m. EDT, NASA's Aqua satellite passed over Raymond, still a tropical storm and the Atmospheric Infrared Sounder or AIRS instrument captured an infrared image. The AIRS images revealed that the coldest cloud top temperatures, and highest, strongest storms were pushed away from the center of circulation. AIRS data also showed some high clouds associated with Raymond were streaming to the east-northeast and over the southern tip of Baja California, Mexico. The image of the AIRS infrared data was created at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

Tropical Storm Raymond weakened to a depression early on Oct. 30 and is expected to dissipate later in the day.

The National Hurricane Center noted that Raymond decoupled over the night of Oct. 29. Satellite data shows that the low-level center was a couple of hundred nautical miles to the southwest the mid-level circulation that includes an area of strong convection (rising air that forms thunderstorms that make up a tropical cyclone). Microwave satellite data also showed that Raymond has elongated, which is another sign of weakening.

To make matters worse for Raymond, its moving into cooler sea surface temperatures and running into dry air - two more factors that will sap its strength.

On Oct. 30 at 5 a.m. EDT/0900 UTC, Tropical Depression Raymond's maximum sustained winds were near 35 mph/55 kph and it was weakening. The center of the depression was located near latitude 19.6 north and longitude 115.7 west, about 440 miles/705 km west-southwest of the southern tip of Baja California. Raymond was moving toward the northeast near 6 mph/9 kph and is expected to turn north while degenerating to a remnant low pressure area.

Text credit: Rob Gutro
NASA's Goddard Space Flight Center

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

More articles from Earth Sciences:

nachricht Water cooling for the Earth's crust
22.11.2017 | Helmholtz Centre for Ocean Research Kiel (GEOMAR)

nachricht Retreating permafrost coasts threaten the fragile Arctic environment
22.11.2017 | Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Corporate coworking as a driver of innovation

22.11.2017 | Business and Finance

PPPL scientists deliver new high-resolution diagnostic to national laser facility

22.11.2017 | Physics and Astronomy

Quantum optics allows us to abandon expensive lasers in spectroscopy

22.11.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>