Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA's GPM satellite examines tornadic thunderstorms

04.04.2016

The Global Precipitation Measurement, or GPM, mission core satellite, a joint mission between NASA and the Japan Aerospace Exploration Agency, measured heavy rainfall in severe storms early on Friday, April 1, in the southern U.S.

Over the last few days tornado spawning thunderstorms have occurred in the states of Texas, Oklahoma, Arkansas, Louisiana, Indiana, Mississippi, Alabama and Georgia. Large hail, damaging winds and flash flooding associated with a frontal system moving across the United States have compounded the damage from these storms. Hail the size of a half-dollar was reported near Jackson, Louisiana, on Thursday evening, March 31.


The GPM core observatory satellite flew over the southern U.S. on March 31, 2016, at 10:41 p.m. EDT (April 1, 2016, at 2:41 a.m. UTC) where a tornado was reported near Hartselle, Alabama, less than an hour before the satellite passed over. Rain was falling at more than 91 mm (3.6 inches) per hour east of Chattanooga, Tennessee. Storm tops in Alabama reached above 12 km (7.4 miles). This image represents observed rainfall rates per hour.

Credits: NASA/JAXA, Hal Pierce

The GPM core observatory satellite flew over this stormy area on March 31, 2016, at 10:41 p.m. EDT (April 1, 2016, 2:41 a.m. UTC). Tornadoes were reported in Mississippi, Alabama and Georgia during the evening. A tornado was reported near Hartselle, Alabama, less than an hour before the satellite passed over.

A rainfall analysis was derived from data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments. The GPM radar (DPR) measured rain falling at the extreme rate of more than 91 mm (3.6 inches) per hour in a powerful storm east of Chattanooga, Tennessee.

At NASA's Goddard Space Flight Center in Greenbelt, Maryland, data from the GPM satellite's radar (GPM Ku band) were used to reveal the three dimensional structure of precipitation in storms beneath the satellite. GPM's radar found that storm tops in Alabama were reaching heights above 12 km (7.4) miles. The locations of intense storms were also revealed by this 3-D slice which shows radar echoes greater than 25 dBZ (decibels Z).

The National Weather Service Weather Prediction Center in College Park, Maryland, issued their Short Range Forecast Discussion at 1:28 a.m. EDT on April 1. The discussion called for heavy rain and strong thunderstorms in the southeastern U.S. states over the course of the day.

The NWS discussion said: A cold front crossing the East Coast tonight is expected to bring numerous showers and storms from the Northeast to Florida. Some of these thunderstorms may be severe across portions of the southeastern U.S. through early Saturday, April 2. There is also the possibility of some flash flooding in this same general area where one to three inches of rainfall will be possible, with locally higher amounts. For more information on U.S. forecasts visit: http://www.weather.gov/.

###

For more information about GPM, visit: http://www.nasa.gov/gpm

Rob Gutro | EurekAlert!

More articles from Earth Sciences:

nachricht In times of climate change: What a lake’s colour can tell about its condition
21.09.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)

nachricht Did marine sponges trigger the ‘Cambrian explosion’ through ‘ecosystem engineering’?
21.09.2017 | Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Rainbow colors reveal cell history: Uncovering β-cell heterogeneity

22.09.2017 | Life Sciences

Penn first in world to treat patient with new radiation technology

22.09.2017 | Medical Engineering

Calculating quietness

22.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>