Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


NASA's Aqua Satellite spots rare Southern Atlantic sub-tropical storm

Sub-tropical Storm Arani forms

NASA's Aqua satellite spotted some strong convection in a recently formed low pressure area that strengthened into Sub-Tropical Storm Arani in the South Atlantic. Arani formed near the coast of Brazil and is now moving away from it. Tropical cyclones in the Atlantic are a rare occurrence and since 2004 there have only been three of them, Arani being the third.

On March 14 at 1553 UTC (11:53 a.m. EST) NASA's Aqua satellite captured an infrared image of Sub-Tropical Storm Arani along the Brazilian coast. Most of the convection and thunderstorms (purple) were limited to the eastern half of the storm. Credit: NASA JPL, Ed Olsen

On March 14, 2011 at 1553 UTC (11:53 a.m. EST) the Atmospheric Infrared Sounder (AIRS) instrument that flies aboard NASA's Aqua satellite captured an infrared image of Sub-Tropical Storm Arani moving away from the Brazilian coast. Most of the convection and thunderstorms were limited to the eastern half of the storm at the time of the image. The strong areas of convection (rapidly rising air that condenses and forms the thunderstorms that power a tropical cyclone) appeared on the imagery as a sideways boomerang, and were off-shore, paralleling the coast.

AIRS measured the temperatures in those strong areas of convection and found they were as cold as or colder than -63 Fahrenheit (-52 Celsius) indicating some strong thunderstorms with heavy rainfall. That heavy rainfall was occurring off-shore. NASA's AIRS imagery is created at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

On March 15 at 1500 UTC (11 a.m. EST), the Brazilian Navy issued a special marine warning for the Brazilian coast. The warning stated that Sub-Tropical Storm Arani was located near 24.0 South latitude and 37 West longitude. Arani had a minimum central pressure of 998 millibars and was moving east-southeast near 10 to 15 knot winds.

Tropical cyclones in the Southern Atlantic Ocean are rare. In 2010 System 90Q formed in the same region where Sub-Tropical Storm Arani formed this year. For more information on System 90Q, visit NASA's Hurricane page archives at:

Dr. Jack Beven of the National Hurricane Center, Miami, Fla. said that Sub-Tropical Storm Arani is not currently as well developed as Tropical Storm Catarina was in the Southern Atlantic in 2004 or System 90Q last year.

The Brazilian Navy has marine forecasting responsibility for that part of the Atlantic designated the system a subtropical cyclone. For updates from the Brazilian Navy on Sub-Tropical Storm Arani, visit: NASA's Hurricane page is managed out of NASA's Goddard Space Flight Center in Greenbelt, Md.

Sub-Tropical Storm Arani is forecast to continue moving away from the Brazilian coast over the next couple of days.

Rob Gutro | EurekAlert!
Further information:

More articles from Earth Sciences:

nachricht Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union

nachricht UM researchers study vast carbon residue of ocean life
19.10.2016 | University of Miami Rosenstiel School of Marine & Atmospheric Science

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Resolving the mystery of preeclampsia

21.10.2016 | Health and Medicine

Stanford researchers create new special-purpose computer that may someday save us billions

21.10.2016 | Information Technology

From ancient fossils to future cars

21.10.2016 | Materials Sciences

More VideoLinks >>>