Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Tropical Storm Kirk Looks More Like a Comet on NASA Infrared Imagery

30.08.2012
Tropical Storm Kirk looks more like a comet than a tropical storm in infrared imagery from NASA's Aqua satellite because of wind shear.

NASA infrared imagery also revealed powerful thunderstorms around the center of circulation which are indicators that Kirk will continue strengthening. Meanwhile, another low pressure area appears to be organizing in the eastern Atlantic, far to the southeast of Kirk.


On Aug. 29 at 12:29 a.m. EDT the AIRS instrument on Aqua captured infrared data on Tropical Storm Kirk's clouds. Cloud top temperatures were colder (purple) than –63F (-52C) around the center of circulation and west of the center. That's where the strongest storms and heaviest rainfall were occurring. Kirk appears to resemble a comet because windshear is pushing clouds and showers to the northeast. Credit: NASA JPL, Ed Olsen

Tropical Depression Kirk formed from the eleventh tropical depression of the Atlantic Ocean season. Tropical Depression 11 formed on Aug. 28 at 5 p.m. EDT about 1,270 miles (2,045 km) east-northeast of the Lesser Antilles.

On Aug. 29 at 12:29 a.m. EDT the Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua satellite captured infrared data on Tropical Storm Kirk's clouds. Cloud top temperatures were colder than –63F (-52C) around the center of circulation and west of the center. That's where the strongest storms and heaviest rainfall were occurring. Early on Aug. 29, wind shear was affecting Kirk from the southwest. Those winds were pushing clouds and showers associated with Kirk to the northeast giving Kirk the appearance of a "comet tail" in infrared imagery.

At 11 a.m. EDT (1500 UTC) on Aug. 29, Kirk's maximum sustained winds were near 45 mph (75 kmh) and gradual strengthening is expected. The center of Tropical Storm Kirk was about 1,135 miles (1,825) km east-northeast of the Northern Leeward Islands, near latitude 24.7 north and longitude 46.9 west. Kirk is moving toward the west-northwest near 12 mph (19 kmh), and is expected to turn northwest on Aug. 30.

Kirk is dealing with a combination of wind shear and dry air, which will make intensification a slow process. The National Hurricane Center (NHC) expects Kirk to curve to the northeast into an area of weaker wind shear, where it is expected to intensify into a hurricane over the weekend of Sept. 1-2, remaining over open ocean. Kirk is also expected to become extra-tropical on its northeastern journey.

While Kirk continues getting organized, another low pressure area is following suit in the eastern Atlantic. There's a low pressure area riding along a tropical wave, located about 700 miles west-southwest of the Cape Verde Islands, that is showing an increase in shower and thunderstorm activity. The system has a 50% chance of becoming tropical depression 12 as it moves to the westward to west-northwestward at about 15 mph (24.4 kmh) over the next couple of days.

Text Credit: Rob Gutro
NASA Goddard Space Flight Center, Greenbelt, Md.

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov
http://www.nasa.gov/mission_pages/hurricanes/archives/2012/h2012_Kirk.html

More articles from Earth Sciences:

nachricht NASA examines newly formed Tropical Depression 3W in 3-D
26.04.2017 | NASA/Goddard Space Flight Center

nachricht Early organic carbon got deep burial in mantle
25.04.2017 | Rice University

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

Scientist invents way to trigger artificial photosynthesis to clean air

26.04.2017 | Materials Sciences

Ammonium nitrogen input increases the synthesis of anticarcinogenic compounds in broccoli

26.04.2017 | Agricultural and Forestry Science

SwRI-led team discovers lull in Mars' giant impact history

26.04.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>