Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Three NASA satellites dissect powerful Typhoon Neoguri


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 UCI and NASA document accelerated glacier melting in West Antarctica
26.10.2016 | University of California - Irvine

nachricht Ice shelf vibrations cause unusual waves in Antarctic atmosphere
25.10.2016 | American Geophysical 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: Etching Microstructures with Lasers

Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.

This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

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...

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

How nanoscience will improve our health and lives in the coming years

27.10.2016 | Materials Sciences

OU-led team discovers rare, newborn tri-star system using ALMA

27.10.2016 | Physics and Astronomy

'Neighbor maps' reveal the genome's 3-D shape

27.10.2016 | Life Sciences

More VideoLinks >>>