Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA's HS3 Looks Hurricane Edouard in the Eye

01.10.2014

NASA and NOAA scientists participating in NASA’s Hurricane and Severe Storms Sentinel (HS3) mission used their expert skills, combined with a bit of serendipity on Sept. 17, 2014, to guide the remotely piloted Global Hawk over the eye of Hurricane Edouard and release a sonde that rotated within the eye as it descended and fell into  the eyewall of the storm at low levels.

NASA’s HS3 mission has returned to NASA’s Wallops Flight Facility on the Eastern Shore of Virginia for the third year to investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin. 


This video shows two passes over Hurricane Edouard during the sixth science flight of NASA’s Global Hawk No. 872 using two of the onboard cameras. One pass is during the day, the second right after “moonrise.”

Image Credit: NASA's Armstrong Flight Research Center, David Fratello


This graph of data from a dropsonde on Sept. 17 shows very strong, hurricane-force winds at the surface of Hurricane Edouard.

Image Credit: NASA

NOAA’s Advanced Vertical Atmospheric Profiling System (AVAPS) aboard Global Hawk No. 872 released 88 dropsondes into the hurricane that measured temperature, humidity and winds throughout the depth of the troposphere, the region of the atmosphere where humans and aircraft experience weather.

During the Global Hawk’s seventh science flight on Sept. 17, “the remotely piloted aircraft released a dropsonde from 62,000 feet along the inner edge of the eyewall on a south to north pass,” said Michael L. Black, research meteorologist at the Hurricane Research Division, NOAA’s Office of Oceanic and Atmospheric Research - Atlantic Oceanographic and Meteorological Laboratory in Florida. 

Black said, “The sonde started out on the south side of the eye and rotated around to the eastern eyewall. The sonde reported a sea-level pressure of 963 millibars, surface winds of 90 knots [103.6 mph, or 166.7 kph], and average low-level winds of 95 knots.” 

The data showed that Eduoard was indeed still at least a strong Category 2 hurricane, possibly Category 3, as the strong winds continued to be observed near the ocean surface.

Basically, the dropsonde, along with 87 others during this flight, provided readings from top to bottom of the critical region of the atmosphere, giving scientists a perfect view of winds, temperature and pressure throughout the whole depth of the storm.

On Sept. 18, Global Hawk No. 872 took off at 7:15 a.m. EDT to return to investigate Eduoard as it moved over cooler Atlantic waters and was expected to weaken. This mission was the eighth science flight during the current campaign for the Global Hawk. During the flight, the Global Hawk ejected 50 dropsondes and observed the decay of Hurricane Edouard to tropical storm strength and recorded the beginning of the demise of the storm that included the decoupling from the mid- and low-level centers of the storm.  

Overall, the Global Hawk flights into Edouard documented its formation into a tropical storm, its rapid increase in intensity into a major, Category 3 storm, and its decay back to a tropical depression thereby capturing the life cycle of a classic hurricane with roots from a tropical wave from Africa.

The HS3 mission is funded by NASA Headquarters and overseen by NASA’s Earth System Science Pathfinder Program at NASA’s Langley Research Center in Hampton, Virginia. It is one of five large airborne campaigns operating under the Earth Venture program.

The HS3 mission also involves collaborations with partners including the National Centers for Environmental Prediction, Naval Postgraduate SchoolNaval Research LaboratoryNOAA’s Unmanned Aircraft System Program, Hurricane Research Division and Earth System Research LaboratoryNorthrop Grumman Space TechnologyNational Center for Atmospheric ResearchState University of New York at AlbanyUniversity of Maryland - Baltimore CountyUniversity of Wisconsin, and University of Utah. The HS3 mission is managed by the Earth Science Project Office at NASA Ames Research Center in Moffett Field, California. The aircraft are maintained and based at NASA’s Armstrong Flight Research Center in Edwards, California.

For more information about NASA’s HS3 mission, visit:  http://www.nasa.gov/hs3

Rob Gutro | Eurek Alert!

More articles from Earth Sciences:

nachricht Predicting unpredictability: Information theory offers new way to read ice cores
07.12.2016 | Santa Fe Institute

nachricht Sea ice hit record lows in November
07.12.2016 | University of Colorado at Boulder

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>