The Global Precipitation Measurement mission or GPM core satellite provided forecasters with a look at the rainfall rates in storms drenching Arkansas and Tennessee.
NOAA's National Weather Service has issued flood advisories and flood warnings for large areas of Arkansas and Tennessee on March 1. Large parts of the Ohio Valley and Mississippi valley have received flooding rainfall during the past week. Arkansas has seen more rain than any other state.
Life threatening flood conditions have resulted from over 10 inches (254 mm) of rain falling in extensive areas of central Arkansas.
The GPM core observatory satellite had an excellent view of the storms that were producing flooding rainfall in Arkansas when it flew above the state on Wednesday February 28, 2018 at 11:15 p.m. CST (March 1 at 0515 UTC). A rainfall analysis was derived from data received by the satellite with GPM's microwave Imager (GMI) and Dual Frequency Precipitation Radar (DPR) instruments.
GPM's radar passed directly above storms that were dropping heavy rain over southwestern Arkansas. GPM's radar (DPR) indicated that some of these storms were dropping rain at greater than 5.1 inches (30.7 mm) per hour. GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency, JAXA.
At NASA's Goddard Space Flight Center in Greenbelt, Md. the GPM satellite's 3-D radar data (DPR Ku Band) were used to show the vertical structure of precipitation falling over Arkansas. These 3-D views use GPM's radar data to reveal simulated cross-sections of intense storms that were extending from Oklahoma into southwestern Arkansas. Storm tops in the area were shown by GPM to reach heights above 5.6 miles (9 km).
On March 1, the National Weather Service in Little Rock, Arkansas noted "Much of central and southern Arkansas has seen between one and three inches, with isolated higher amounts, of rainfall over the last 24 hours. This has only aggravated the flooding situation across the area. Excessive runoff will continue today, even well after the rain ends."
For updated warnings and watches in Arkansas, visit the National Weather Service web page: https:/
For more information about GPM, visit: http://www.
Rob Gutro | EurekAlert!
Global study of world's beaches shows threat to protected areas
19.07.2018 | NASA/Goddard Space Flight Center
NSF-supported researchers to present new results on hurricanes and other extreme events
19.07.2018 | National Science Foundation
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
20.07.2018 | Power and Electrical Engineering
20.07.2018 | Information Technology
20.07.2018 | Materials Sciences