Two NASA satellites provided a look inside and outside of Tropical Cyclone Ashobaa. NASA and JAXA's GPM satellite observed rainfall rates and cloud heights identifying powerful thunderstorms within the cyclone, and NASA's Aqua satellite provided an overall look at Ashobaa's cloud extent.
The Global Precipitation Measurement (GPM) core observatory had an excellent view of Tropical Cyclone Ashobaa in the Arabian Sea over on June 8, 2015 at 2131 UTC (5:31 p.m. EDT). As expected, Tropical Cyclone Ashobaa was more powerful than when seen by GPM earlier in the day.
GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments showed that rain was falling at a rate of over 70.5 mm (about 2.8 inches) per hour in bands of storms west of the center of circulation.
Very powerful storms were seen west of tropical cyclone ASHOBAA's center of circulation by GPM's Ku Band Radar. A 3-D view constructed from GPM's Ku band radar data shows that Tropical Cyclone Ashobaa had some extremely tall storms. GPM radar data indicated that some of these very intense storms were reaching the amazing height of 21 km (13 miles).
On June 10 at 09:00 UTC (5 a.m. EDT), the Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA's Aqua satellite captured a visible image of Tropical Cyclone Ashobaa off the coast of Oman.
There was no visible eye in the system, although it appears to be strengthening. Bands of thunderstorms were spiraling into the low-level center from the west and east. The MODIS image showed that the northwestern quadrant of the tropical storm was already sweeping over eastern Oman.
The Joint Typhoon Warning Center (JTWC) noted that "Animated multispectral satellite imagery depicts tight spiral banding wrapping beneath a central dense overcast feature that is elongated to the west due to moderate (15-20 knot) easterly vertical wind shear that will persist throughout the forecast period." Microwave imagery shows disorganized convection along the western edge of the storm, while an eye feature can be seen in microwave data.
By 1500 UTC (11 a.m. EDT), Ashobaa's maximum sustained winds had increased to 55 knots (63.9 mph/ 101.9 kph). Ashobaa was centered near 20.9 North latitude and 61.0 east longitude, about 138 nautical miles (158.8 miles/255.6 km) east-northeast of Masirah Island, Oman. The tropical storm is slowly moving west at 3 knots (3.4 mph/5.5 kph).
The JTWC now expects that Ashobaa will not reach hurricane-strength before making landfall early on June 12 and will weaken quickly thereafter between the interaction with land and dry air that is forecast to move into the circulation.
Rob Gutro | EurekAlert!
Greenland ice flow likely to speed up: New data assert glaciers move over sediment, which gets more slippery as it gets wetter
17.08.2017 | Swansea University
Climate change: In their old age, trees still accumulate large quantities of carbon
17.08.2017 | Universität Hamburg
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
18.08.2017 | Life Sciences
18.08.2017 | Physics and Astronomy
18.08.2017 | Materials Sciences