Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA satellite attends the birth of Tropical Storm Bune in Southern Pacific

25.03.2011
It's not unusual for NASA satellites to attend the birth of tropical cyclones, and NASA's Aqua satellite was there when Tropical Cyclone Bune was born early today in the South Pacific Ocean.

Bune developed from System 99P, a low pressure area that was about 200 miles southeast of Suva, Fiji yesterday, March 23. The low intensified into tropical depression 19P and today strengthened further into Tropical Storm Bune.


Aqua's Atmospheric Infrared Sounder (AIRS) instrument captured Bune's (purple and blue) high thunderstorm cloud temperatures at 1:35 UTC on March 24, 2011. The strongest thunderstorms were north of the center of circulation (purple). Credit: NASA JPL, Ed Olsen

A Tropical Cyclone Alert is in force for Lau, Lomaiviti and nearby smaller islands. A strong wind warning is also in force for the Lau group, Lomaiviti group and nearby smaller islands.

NASA's Aqua satellite captured an infrared image of Bune that showed strongest convection (rapidly rising air that forms the thunderstorms that make up a tropical cyclone) was occurring on the north side of the center of circulation. That's where the cloud top temperatures were the coldest, and the thunderstorms were the highest, and strongest. The low-level circulation center also appears to be consolidating (strengthening) on infrared imagery.

Infrared imagery measures temperatures and not only can it see cold, high cloud tops in tropical cyclones, but also the warm ocean waters that power the cyclones (if the sea surface temperatures are over 80F (26.6 C)). Cold cloud top temperatures provide clues about the power of the thunderstorms in a tropical cyclone. The colder the clouds are, the higher they are, and the more powerful the thunderstorms are that make up the cyclone. Bune's cloud temperatures were colder than - 63F (-52C), indicating very cold, high, strong thunderstorms within.

Today, March 25 at 0900 UTC (5 a.m. EDT), Tropical Storm Bune's maximum sustained winds were up to 45 knots (52 mph/83 kmh) with higher gusts. It was moving away from Fiji and is now located about 260 miles (418 km) southeast of Suva, Fiji near 21.1 South latitude and 179.8 West longitude. Tropical-Storm force winds extended outward from the center up to 50 miles (80 km). It was creating 15 foot (4.5 meter) high waves.

Forecasters at the Joint Typhoon Warning Center are forecasting intensification as the storm moves away from Fiji. It is expected to become extra-tropical far to the north of New Zealand.

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

More articles from Earth Sciences:

nachricht Modeling magma to find copper
13.01.2017 | Université de Genève

nachricht What makes erionite carcinogenic?
13.01.2017 | Friedrich-Schiller-Universität Jena

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

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

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Multiregional brain on a chip

16.01.2017 | Power and Electrical Engineering

New technology enables 5-D imaging in live animals, humans

16.01.2017 | Information Technology

Researchers develop environmentally friendly soy air filter

16.01.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>