Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA Sees Giovanna Reach Cyclone Strength, Threaten Madagascar

13.02.2012
Tropical Storm 12S built up steam and became a cyclone on February 10, 2012 as NASA's Terra satellite passed overhead. Residents of east-central Madagascar should prepare for this cyclone to make landfall by February 13 according to forecasters.

Now named Cyclone Giovanna, this storm has reached Category One status on the Saffir-Simpson Hurricane/Cyclone scale with maximum sustained winds near 65 knots (~75 mph/120.4 kph) on February 10, 2012. It was located about 480 nautical miles (552 miles/889 km) northeast of La Reunion island, near 15.8 South and 61.2 East. It was moving to the west-southwest near 8 knots (9mph/15 kph).


The MODIS instrument on NASA's Terra satellite captured this image at 06:00 UTC (1 a.m. EST) on February 10, 2012, as Tropical Cyclone Giovanna moved through the Southern Indian Ocean. Although the visible image did not reveal an eye, infrared data did see the beginning of an eye. The thunderstorms around the center of circulation are higher than the surrounding clouds, and cast shadow on the lower surrounding clouds in this image. Credit: NASA Goddard MODIS Rapid Response Team

When NASA's Terra satellite passed over Cyclone Giovanna, the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard, captured a visible image at 06:00 UTC (1 a.m. EST) on February 10, 2012. Although the visible image did not reveal an eye, infrared data from the Atmospheric Infrared Sounder (AIRS) instrument aboard NASA's Aqua satellite did see the beginning of an eye. In the visible image, the thunderstorms around the center of circulation appeared higher than the surrounding clouds, and cast shadow on the lower surrounding clouds.

Forecasters at the Joint Typhoon Warning Center (JTWC) are still forecasting a landfall in east-central Madagascar. Residents of Madagascar need to prepare for the storm's arrival and expect heavy, flooding rainfall, very rough surf conditions and Cyclone-force winds.

On February 10 at 0900 UTC (4 a.m. EST) the JTWC forecast stated: "Due to the favorable environment, Giovanna is forecast to strengthen to a peak of 110 knots (~127 mph/~204 kph) within the next 36 hours." The system is expected to weaken significantly as it tracks across Madagascar; however, re-development is expected in the Mozambique Channel after 120 hours."

Text Credit: Rob Gutro
NASA's 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_Giovanna.html

More articles from Earth Sciences:

nachricht Climate Change in West Africa
17.06.2019 | Julius-Maximilians-Universität Würzburg

nachricht Determining the Earth’s gravity field more accurately than ever before
13.06.2019 | Technische Universität Graz

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Successfully Tested in Praxis: Bidirectional Sensor Technology Optimizes Laser Material Deposition

The quality of additively manufactured components depends not only on the manufacturing process, but also on the inline process control. The process control ensures a reliable coating process because it detects deviations from the target geometry immediately. At LASER World of PHOTONICS 2019, the Fraunhofer Institute for Laser Technology ILT will be demonstrating how well bi-directional sensor technology can already be used for Laser Material Deposition (LMD) in combination with commercial optics at booth A2.431.

Fraunhofer ILT has been developing optical sensor technology specifically for production measurement technology for around 10 years. In particular, its »bd-1«...

Im Focus: The hidden structure of the periodic system

The well-known representation of chemical elements is just one example of how objects can be arranged and classified

The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...

Im Focus: MPSD team discovers light-induced ferroelectricity in strontium titanate

Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.

Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...

Im Focus: Determining the Earth’s gravity field more accurately than ever before

Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.

The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...

Im Focus: Tube anemone has the largest animal mitochondrial genome ever sequenced

Discovery by Brazilian and US researchers could change the classification of two species, which appear more akin to jellyfish than was thought.

The tube anemone Isarachnanthus nocturnus is only 15 cm long but has the largest mitochondrial genome of any animal sequenced to date, with 80,923 base pairs....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

A new force for optical tweezers awakens

19.06.2019 | Physics and Astronomy

New AI system manages road infrastructure via Google Street View

19.06.2019 | Information Technology

A new manufacturing process for aluminum alloys

19.06.2019 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>