The Atmospheric Infrared Sounder (AIRS) instrument that flies on NASA's Aqua satellite gives scientists and meteorologists clues about how a tropical cyclone is behaving by providing critical temperature data.
NASA\'s Aqua satellite captured an infrared image of Tropical Depression 12 early on Sept. 12 when it was just east-southeast of the Cape Verde Islands. At that time it showed strong convection and powerful thunderstorms around its center (purple). By 11 p.m. EDT that day it became Tropical Storm Julia. Warm sea surface temperatures of 80F or higher (orange) surround Julia.
Credit: NASA/JPL, Ed Olsen
The TRMM satellite captured heavy rainfall (red) around Julia\'s center on Sept. 12 at 1822 UTC (2:22 p.m. EDT) about 9 hours before she reached tropical storm status. Rain in the red areas was falling at more than 2 inches per hour.
Credit: NASA/SSAI, Hal Pierce
When Aqua flew over Tropical Depression 12 early on Sept. 12 the concentration of strong convection (rapidly rising air that forms thunderstorms that power a tropical cyclone) were large and surrounded the depression's center. Cloud top temperatures over a large area were as cold or colder than -63 degrees Fahrenheit, and those thunderstorms were strong. The convection continued on Sept. 12 and the storm finally strengthened into Tropical Storm Julia.The Tropical Rainfall Measuring Mission (TRMM) satellite, which is operated jointly by NASA and the Japanese Space Agency, JAXA captured a very good daytime look at Julia when she was tropical depression 12 on September 12 at 1822 UTC (2:22p.m. EDT). TRMM showed that TD12 was starting to get organized and had moderate to very heavy rainfall converging into the center of the future storm's circulation. Julia is another in a series of 2010 tropical cyclones forming near the Cape Verde Islands off the African Coast.
She was "born" on Sept. 12 at around 11 a.m. EDT near 12.7 North and 21.4 West. Since then, she's moved west to 14.5 North and 25.6 West, which is about 85 miles west-southwest of the southernmost Cape Verde Islands. Her maximum sustained winds are near 40 mph, and is expected to strengthen in the next couple of days, possibly reaching hurricane status. Julia is moving west-northwest near 14 mph and had a minimum central pressure of 1004 millibars.
Julia is expected to continue moving west-northwest, then turn northwest and slow down tomorrow.
Rob Gutro | EurekAlert!
From volcano's slope, NASA instrument looks sky high and to the future
27.04.2017 | NASA/Goddard Space Flight Center
Penn researchers quantify the changes that lightning inspires in rock
27.04.2017 | University of Pennsylvania
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
27.04.2017 | Life Sciences
27.04.2017 | Physics and Astronomy
27.04.2017 | Earth Sciences