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EARTH OBSERVATION
ISS-RapidScat looks at the winds in US east coast's 'wind chill'
by Staff Writers
Greenbelt MD (SPX) Jan 11, 2015


illustration only

The strong cold front that ushered in frigid Arctic air to two-thirds of the eastern U.S. brought in strong winds and bitter wind chills. NASA's ISS-RapidScat instrument measured those winds off the coastal Atlantic.

Residents along the northeastern and Mid-Atlantic coast of the U.S. started experiencing bitter wind chills on January 7, 2015 as ISS-RapidScat measured coastal winds from its perch aboard the International Space Station or ISS. Those wind chills continued on January 8.

The ISS-RapidScat instrument flies aboard the International Space Station and measures Earth's ocean surface wind speed and direction. ISS-RapidScat images are created by Analyst Doug Tyler at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California. NASA JPL manages ISS-RapidScat.

Between 17:14 UTC (12:14 p.m. EST) and 18:47 UTC (1:47 p.m. EST) on January 7, ISS-RapidScat measured high wind speeds over the Atlantic Ocean just off-shore from the northeastern and Mid-Atlantic states. The winds were sustained between 15 meters per second/33.5 mph/54 kph to 20 meters per second/44.7 mph/72 kph. When outside air temperatures are near 15F (-9.4C), a 15 mph (24.1 kph) wind will make the wind chill 0F (-18C).

On Thursday, January 8, 2015, NOAA's National Weather Service Weather Prediction Center in College Park, Maryland noted that air temperatures will be 20 to 25 degrees below average from the Tennessee Valley to the Mid-Atlantic. Wind chill values will be near zero in Portland, Maine, Boston, Massachusetts, and New York City during the day and night of January 8. As far south as Norfolk, Virginia, wind chills will be in the teens during the day and at night.

The National Weather Service defines wind chill as the term used to describe the rate of heat loss on the body (humans and animals) resulting from the combined effect of low temperature and wind. As winds increase, heat is carried away from the body at a faster rate, driving down both the skin temperature and eventually the internal body temperature.

For the NWS wind chill chart, visit here and for information on frostbite, visit here


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Related Links
Goddard Space Flight Center
ISS-RapidScat at JPL
ISS-RapidScat at NASA
Earth Observation News - Suppiliers, Technology and Application






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EARTH OBSERVATION
NASA invites community to learn about Magnetospheric Mission
Greenbelt MD (SPX) Jan 11, 2015
NASA's Goddard Space Flight Center Visitor Center in Greenbelt, Maryland, will host a Sunday Experiment on January 18, from 1 p.m. to 3 p.m. EST. The event is free and open to the public with a focus on elementary school-aged children and their families. This month's Sunday Experiment features fun activities to help children of all ages learn about NASA's Magnetospheric Multiscale, or MMS, ... read more


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