Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Three NASA satellites dissect powerful Typhoon Neoguri

09.07.2014

NASA's Aqua, TRMM and CloudSat dissected powerful Typhoon Neoguri as it moved through the Northwestern Pacific Ocean and affected southern Japan. The three satellites gathered data on rainfall, cloud heights, cloud extent, cloud temperatures, the size of the eye, and what was happening in the eye.

Typhoon Neoguri formed in the western Pacific Ocean south-southeast of Guam on July 3, 2014. Since then Neoguri has become increasingly more powerful and dangerous. The word Neoguri means "raccoon" in Korean. On July 5 at 0426 UTC (12:26 a.m. EDT) NASA's CloudSat satellite passed over Typhoon Neoguri when its maximum sustained winds were near 110 knots (127 mph).


NASA's TRMM Satellite Sees Heavy Rainfall in Typhoon Neoguri On July 7 at 2:41 a.m. EDT the TRMM satellite had a near perfect view as it passed above the center of Typhoon Neoguri. Heaviest rainfall was occurring at over 106 mm (4.2) inches per hour in feeder bands southeast of Neoguri's eye.

Credit: NASA/SSAI, Hal Pierce

CloudSat passed over the western edge of the center of the storm revealing a portion of eye and eye wall structure. CloudSat found that a canopy or covering of high, wispy cirrus clouds covered the eye, and that there was a small area of cumulus and stratocumulus clouds near the surface.

NASA's TRMM Satellite Sees Heavy Rainfall in Typhoon Neoguri On July 7 at 2:41 a.m. EDT the TRMM satellite had a near perfect view as it passed above the center of Typhoon Neoguri. Heaviest rainfall was occurring at over 106 mm (4.2) inches per hour in feeder bands southeast of Neoguri's eye.

When CloudSat passed overhead, Typhoon Neoguri had a notably large eye with meso vorticies (small scale rotational areas usually found in an intensifying tropical cyclone as was the case with Neoguri) in the inner eye. CloudSat passed over Neoguri from northwest to southeast and cut through the center of the storm.

CloudSat found a wide area of moderate to heavy rainfall and convection (rising air that forms thunderstorms) south of the eyewall and outer bands. CloudSat also provided a side view of the extent of Neoguri's clouds, and found the cirrus canopy extends hundreds of miles/kilometers outward from the center.

On July 7 at 0641 UTC (2:41 a.m. EDT) NASA and the Japan Aerospace Exploration Agency's Tropical Rainfall Measuring Mission or TRMM satellite had a near perfect view as it passed above the center of Typhoon Neoguri. At that time, Neoguri was classified as a category four typhoon on the Saffir-Simpson hurricane scale with sustained winds estimates at 135 knots (155 mph).

Rainfall from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) revealed that Neoguri's nearly circular eye wall contained intense thunderstorms. TRMM PR found that the heaviest precipitation was occurring at a rate of over 106 mm (about 4.2) inches per hour in feeder bands southeast of Neoguri's eye.

At NASA's Goddard Space Flight Center in Greenbelt, Maryland, TRMM's Precipitation Radar data was used to create a 3-D simulated view that showed Neoguri's circular eye wall was unbroken and contained storms that were uniformly reaching heights of 13 to 15 km (8 to 9.3 miles).

On July 8 at 0500 UTC (1 a.m. EDT), NASA's Aqua satellite passed over Typhoon Neoguri when it was in the East China Sea. The Moderate Resolution Imaging Spectroradiometer or MODIS instrument captured a visible image of the storm that shows some cirrus clouds in a mostly clear eye. Neoguri's center was due west of Kume Island. Kume Island is a populated volcanic island that is part of the Okinawa Islands and the Okinawa Prefecture, Japan.

As Aqua passed over Neoguri, another instrument aboard captured infrared data on the storm's clouds and temperatures. The Atmospheric Infrared Sounder or AIRS instrument found cold cloud tops in powerful thunderstorms around the eyewall (wall of thunderstorms around the storm's open center) were as cold as -70C to -80C (-94F to -112F) degrees. AIRS showed an eye that was about 25 nautical-miles (28.7 miles/46.3 km) wide.

On July 8 at 1500 UTC (11 a.m. EDT) Neoguri's maximum sustained winds had dropped to 105 knots. It was centered near 28.3 north latitude and 125.8 east longitude, about 379 nautical miles (436 miles/702 miles) southwest of Sasebo, Japan. The Joint Typhoon Warning Center or JTWC noted that Neoguri was moving to the north at 13 knots (14.9 mph/24.0 kph), but forecasts a change to the northeast. Neoguri is creating large and dangerous swells with wave heights to 37 feet (11.2 meters).

The JTWC predicts Typhoon Neoguri will turn to the east and make landfall in southern Kyushu slightly after 0000 UTC on July 10 (8 p.m. EDT on July 9).

Rob Gutro | Eurek Alert!

Further reports about: CloudSat EDT Flight NASA TRMM Typhoon UTC clouds knots satellite satellites thunderstorms winds

More articles from Earth Sciences:

nachricht Clear as mud: Desiccation cracks help reveal the shape of water on Mars
20.04.2018 | Geological Society of America

nachricht Hurricane Harvey: Dutch-Texan research shows most fatalities occurred outside flood zones
19.04.2018 | European Geosciences Union

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

Im Focus: Like a wedge in a hinge

Researchers lay groundwork to tailor drugs for new targets in cancer therapy

In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Magnetic nano-imaging on a table top

20.04.2018 | Physics and Astronomy

Start of work for the world's largest electric truck

20.04.2018 | Interdisciplinary Research

Atoms may hum a tune from grand cosmic symphony

20.04.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>