+ Visit NASA.gov + Advanced Search   + About the Server   + Animation List   + How to Use the Server   + RSS Feeds Previous Animation Next Animation Ionosphere Total Electron Content - April 2001 A view of the ionospheric Total Electron Content (TEC) measured over North America during a storm in April 2001. Red is high electron counts, blue is low, gray where there is no data. From the pre-storm state, we see relatively low electron counts. As the storm intensity increases, so do the number of electrons. The increase will generate more interference for communications systems, GPS, etc.    Closeup view of TEC data over North America, with dates Duration: 20.0 seconds Available formats:   640x480 (30 fps) MPEG-1   14 MB   720x480 (29.97 fps) MPEG-2   17 MB   320x240 (30 fps) MPEG-1   3 MB   720x480 (29.97 fps) Frames (Closeupnoplas wdate)   320x240     JPEG         54 KB   640x480 (30 fps) MPEG-1   6 MB   640x480 (29.97 fps) MPEG-4   10 MB How to play our movies    Closeup view of TEC data over North America, without dates Duration: 20.0 seconds Available formats:   720x480 (29.97 fps) MPEG-2   17 MB   640x480 (30 fps) MPEG-1   14 MB   320x240 (30 fps) MPEG-1   3 MB   720x480 (29.97 fps) Frames (Closeupnoplas nodate)   320x240     JPEG         54 KB   640x480 (30 fps) MPEG-1   6 MB   640x480 (29.97 fps) MPEG-4   10 MB How to play our movies    Pre-storm ionospheric electron content. Available formats:   2560 x 1920     TIFF 3 MB   320 x 240         JPEG 57 KB    The high electron density plume (dark red) sweeps over the U.S and Canada. Available formats:   2560 x 1920     TIFF 3 MB   320 x 240         JPEG 58 KB   160 x 80           PNG 36 KB   80 x 40             PNG 11 KB Animation Number: 3310 Animator: Tom Bridgman (SVS) (Lead) Completed: 2005-11-18 Scientists: Anthea J. Coster (MIT/Haystack)   John Foster (MIT/Haystack)   Robert Robinson (NSF)   Marlene Colerico (MIT/Haystack) Data set: World-wide GPS Receiver Network Data Collected: 2001-04-11T14:59:00Z - 2001-04-12T01:03:00Z Series: Space Weather Cold Fronts Keywords: SVS >> Electron Fluxes GCMD >> EARTH SCIENCE >> Sun-earth Interactions >> Ionosphere/Magnetosphere Particles GCMD >> EARTH SCIENCE >> Sun-earth Interactions >> Ionosphere/Magnetosphere Particles >> Electron Flux GCMD >> Location >> Ionosphere SVS >> Space Weather More Information on this topic available at: http://www.nasa.gov/vision/universe/solarsystem/cold_front_feature.html Science paper: JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 110, A09S31, doi:10.1029/2004JA010928, 2005     Please give credit for this item to NASA/Goddard Space Flight Center Scientific Visualization Studio Back to Top + Privacy Policy and Important Notices + Reproduction Guidelines NASA Official: SVS Contact: Curator: