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GEM Storm Intervals |
Other Storm Intervals |
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May 1997 |
March 1998 |
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May 1998 |
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October 1998 |
June 1998 |
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August 1998 |
The above plots show the data from the particle spectrometer (SSJ4) both as a color spectogram and as line plots. The spectograms show the number flux from all the energy channels between 30 eV and 30 keV (y-axis) as a function of time (x-axis) as the DMSP spacecraft cross the polar ionosphere. The line plots above the color spectograms are the ion and electron number flux and average energy vs. time. The values for the lines plots were obtained by integrating data data across all energies. The line plots below the color spectogram show two components of the ion drift - one component is is in the horizontal plane and perpendicular to the flight path and the other component is in the vertical direction.
The above plots were created as postscript plots by an IDL program and then scanned to create the above JPEG plots. The IDL program (cenergy.pro) to create these and similar plots is available at the AFRL/VSB anonymous ftp site and the data files are available upon request.
| John
Foster MIT Haystack Observatory Route 40 Westford, Massachusetts 01886 781-981-5621 fax 781-981-5766 jcf@haystack.mit.edu |
Frederick Rich Air Force Research Lab. (VSBP) 29 Randolph Road Hanscom AFB, Massachusetts 01720 781-377-3857 fax 781-377-9950 rich@plh.af.mil |
Description of DMSP Particle Spectrometer
Description of DMSP Ion Drift Meter
Description of DMSP Magnetometer
DMSP Data at NOAA/ National Geophysical Data Center