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!
Northern oceans pumped CO2 into the atmosphere
27.03.2017 | CAGE - Center for Arctic Gas Hydrate, Climate and Environment
Weather extremes: Humans likely influence giant airstreams
27.03.2017 | Potsdam-Institut für Klimafolgenforschung
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
27.03.2017 | Earth Sciences
27.03.2017 | Life Sciences
27.03.2017 | Life Sciences