Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA's Infrared Satellite Imagery Shows Wind Shear Affecting Cyclone Ian

14.01.2014
Tropical Cyclone Ian has been battered by wind shear and infrared imagery from NASA's Aqua satellite revealed that the bulk of the precipitation has been pushed east and southeast of the storm's center.

NASA's Aqua satellite passed over Ian on January 13 at 01:23 UTC and saw strongest storms with the coldest cloud tops had temperatures (purple) east and southeast of the center.
Image Credit: NASA JPL, AIRS

On January 13 at 0900 UTC/4 a.m. EST, Tropical Cyclone Ian's maximum sustained winds were near 65 knots/74.8 mph/120.4 kph, just at hurricane-strength. Just a day before, Ian's maximum sustained winds were near 80 knots/148.2 kph/92.0 mph.

Ian is moving to the southeast at 14 knots/25.9 kph/16.1 mph and is expected to continue in that direction. Ian was located about 882 nautical miles/1,633 km/1,015 miles south of Pago Pago, near 29.5 south and 169.9 west.

Ian has become significantly elongated as it has been battling strong wind shear. The precipitation has also been sheared to the east.

When NASA's Aqua satellite passed over Ian on January 13 at 01:23 UTC/January 12 at 8:23 p.m. EST, the Atmospheric Infrared Sounder or AIRS instrument captured an infrared picture of the storm. Infrared data showed the temperature of the storm's clouds and the sea surface temperatures surrounding it. The strongest storms with the coldest cloud tops had temperatures as cold as -63F/-52C and the AIRS image showed those storms were clearly pushed east and southeast of the center. The AIRS data also showed warmer, lower cloud top temperatures north and west of Ian's center.

AIRS data showed sea surface temperatures north of Ian were as warm as 300K/26.5C/80.3F/ while those south of Ian (and in the general direction the storm was heading) were near 290K/16.8C/62.3F or cooler.

Over the next couple of days, Ian is expected to become extra-tropical and a cold core low pressure area in the next day and a half.

Ian is no threat to land as it continues on its southeastern track.

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

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov
http://www.nasa.gov/content/goddard/ian-southern-pacific-ocean/

More articles from Earth Sciences:

nachricht Miranda: An Icy Moon Deformed by Tidal Heating
19.09.2014 | Geological Society of America

nachricht NASA Sees Odile Soaking Mexico and Southwestern U.S.
18.09.2014 | NASA/Goddard Space Flight Center

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Anzeige

Anzeige

Event News

"Start-ups and spin-offs funding – Public and private policies", 14th October 2014

12.09.2014 | Event News

BALTIC 2014: Baltic Sea Geologists meet in Warnemünde

03.09.2014 | Event News

IT security in the digital society

27.08.2014 | Event News

 
Latest News

No sedative necessary: Scientists discover new “sleep node” in the brain

19.09.2014 | Life Sciences

Sensing Neuronal Activity With Light

19.09.2014 | Life Sciences

Miranda: An Icy Moon Deformed by Tidal Heating

19.09.2014 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>