NASA's Global Hawk 871 departed from NASA's Wallops Flight Facility, Wallops Island, Va. today, Sept. 17, at 10 a.m. EDT from Runway 04. This marked the twenty-fifth flight for NASA 871. Meanwhile, NASA 872 was returning to home base after making its seventy-fifth flight. These flights over Tropical Storm Humberto brought forth the one-hundredth flight of NASA's Global Hawks.
The AIRS instrument aboard NASA's Aqua satellite captured this infrared image of Humberto on Sept. 17 at 4:29 UTC/12:289 a.m. EDT. The image showed the highest storms and coldest cloud top temperatures (purple) northeast of the center.
Image Credit: NASA JPL, Ed Olsen
NASA's Global Hawk 872 unmanned aircraft took off at 10:42 a.m. EDT from Runway 22 at NASA's Wallops Flight Facility, Wallops Island, Va. on Sept. 16 to investigate Humberto and dispersed dropsondes throughout the storm. NASA 872 gathered data on the environment of the storm. Global Hawk aircraft are well-suited for hurricane investigations because they can fly for as long as 28 hours and over-fly hurricanes at altitudes greater than 60,000 feet (18.3 km).
Tropical storm Humberto had little deep convection and was classified by the National Hurricane Center (NHC) as a post-tropical cyclone on September 14, 2013. By September 16, Humberto was showing bursts of strong convection and thunderstorms were developing with heavy rainfall, so Humberto was again classified a tropical storm.
NASA's Tropical Rainfall Measuring Mission or TRMM satellite observed Humberto on September 15, 2013 at 1652 UTC (12:52 p.m. EDT) and on September 16, 2013 at 1557 UTC (11:57 a.m. EDT). A comparison of the two TRMM orbits showed significant changes that occurred within Humberto in less than 24 hours. In the first orbit on September 15, 2013 Humberto's center of circulation was rain free and only contained a small area of convective rainfall that was located well to the north of Humberto's surface location. Areas of strong convective rainfall were associated with rebounding Tropical Storm Humberto when TRMM viewed the same area on September 16, 2013.
The Atmospheric Infrared Sounder instrument aboard NASA's Aqua satellite captured an infrared image of Humberto on Sept. 17 at 4:29 UTC/12:289 a.m. EDT. The image showed the highest storms and coldest cloud top temperatures were still east and northeast of the center and were dropping the heaviest rainfall. .
At 11 a.m. EDT on Sept. 17 the center of Tropical Storm Humberto was located near latitude 29.4 north and longitude 42.5 west, about 1070 miles/1,720 km west-southwest of the Azores Islands. Humberto's maximum sustained winds were near 45 mph/75 kph and the National Hurricane Center expects some slight strengthening. Humberto is moving to the north at 10 mph/17 kph and is expected to turn to the northwest and slow down before heading north again on Sept. 18.
HS3 is a mission that brings together several NASA centers with federal and university partners to investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin. Among those factors, HS3 will address the controversial role of the hot, dry and dusty Saharan Air Layer in tropical storm formation and intensification and the extent to which deep convection in the inner-core region of storms is a key driver of intensity change. The HS3 mission will operate between Aug. 20 and Sept. 23.
Humberto is forecast to again become a post-tropical low in about four days.Text credit: Rob Gutro
Rob Gutro | EurekAlert!
UCI and NASA document accelerated glacier melting in West Antarctica
26.10.2016 | University of California - Irvine
Ice shelf vibrations cause unusual waves in Antarctic atmosphere
25.10.2016 | American Geophysical Union
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
26.10.2016 | Physics and Astronomy
26.10.2016 | Earth Sciences
25.10.2016 | Earth Sciences