Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA captures Typhoon Nida's clouds from 2 angles

01.12.2009
NASA satellites capture amazing views of tropical cyclones, and the Aqua and CloudSat satellites captured a top-down look at temperatures in Typhoon Nida's clouds, and an image of what they look like from the side.

On Monday, November 30, by 4 a.m. ET, Nida had lost her "Super Typhoon" status as a result of wind shear, and is now a typhoon. Nida's maximum sustained winds are near 115 mph (100 knots). The storm was over open ocean in the Western Pacific, about 330 miles south-southwest of the island of Iwo To (formerly Iwo Jima), near 19.6 North and 139.1 East. It was crawling to the west-northwest near 3 mph (2 knots), so the forecast track has become more difficult to predict.

Tropical storm force winds extend 150 miles from the center, so the storm is about 300 miles in diameter. Typhoon-force winds extend out to 55 miles from the center. Nida is kicking up 35-foot high waves in the open ocean.

NASA's CloudSat satellite's Cloud Profiling Radar captured a side look across Nida on Nov. 28. Nida's clouds are over 15 kilometers or 9 miles high. CloudSat also noticed ice in throughout all of Nida's cloud tops, indicating strong, high, thunderstorms. CloudSat also noted heavy rainfall over some of the areas where Nida meets the ocean's surface, more than 30mm/hr (1.18 inches/hour). CloudSat also provided an estimate of winds and atmospheric pressure at the time of the overpass on November 28 and clocked the wind around 140 knots and the minimum central pressure around 918 millibars.

NASA's Aqua satellite also passed over Nida on November 28 and captured infrared and microwave imagery using its Atmospheric Infrared Sounder (AIRS). The data from AIRS is also used to create an accurate 3-D map of atmospheric temperature, water vapor and clouds, all of which are helpful to forecasters. The AIRS image clearly showed Nida's eye, and strong, cold thunderstorm cloud tops, colder than -63 Fahrenheit (220 degrees Kelvin) circling the eye.

The infrared signal of the AIRS instrument does not penetrate through clouds. Where there are no clouds the AIRS instrument reads the infrared signal from the ocean and land surfaces, revealing warmer temperatures in orange and red. The orange temperatures are 80F (300 degrees Kelvin) or greater (the darker they are, the warmer they are), and tropical cyclones need sea surface temperatures of 80F to strengthen and maintain their strength.

The Joint Typhoon Warning Center is the organization responsible for forecasts of typhoons in that region, and their latest discussion noted that Nida is weakening as it continues to crawl in a northerly direction.

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov

Further reports about: AIRS AQUA CloudSat NASA Typhoon cloud tops open ocean sea surface temperature tropical cyclone

More articles from Earth Sciences:

nachricht Heidelberg Researchers Study Unique Underwater Stalactites
24.11.2017 | Universität Heidelberg

nachricht Lightning, with a chance of antimatter
24.11.2017 | Kyoto University

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 proton record: Researchers measure magnetic moment with greatest possible precision

High-precision measurement of the g-factor eleven times more precise than before / Results indicate a strong similarity between protons and antiprotons

The magnetic moment of an individual proton is inconceivably small, but can still be quantified. The basis for undertaking this measurement was laid over ten...

Im Focus: Frictional Heat Powers Hydrothermal Activity on Enceladus

Computer simulation shows how the icy moon heats water in a porous rock core

Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

IceCube experiment finds Earth can block high-energy particles from nuclear reactions

24.11.2017 | Physics and Astronomy

A 'half-hearted' solution to one-sided heart failure

24.11.2017 | Health and Medicine

Heidelberg Researchers Study Unique Underwater Stalactites

24.11.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>