Analysis of auroral morphology: Substorm precursor and onset on January 10, 1997

Geophysical Research Letters

Volumn 25, Issue 15, 1998, Pages 3043-3046

  Germany, G A ^a   Parks, G K ^b   Ranganath, H ^c   Elsen, R ^b   Richards, P G ^c   Swift, W ^a   Spann, J F ^d   Brittnacher, M ^b  

^a UNIVERSITY OF ALABAMA IN HUNTSVILLE   (United States)

^b UNIVERSITY OF WASHINGTON   (United States)

^c University of Alabama ^*  (United States)

^d NASA MARSHALL SPACE FLIGHT CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GEOPHYSICS; ALGORITHMS; ASTROPHYSICS; COMPUTER AIDED ANALYSIS; IMAGE ANALYSIS; IMAGE PROCESSING; MAGNETIC FIELDS; NEURAL NETWORKS;

AURORAL IMAGES; AURORAL OVAL; HIGH LATITUDES; LOW LATITUDES; MORPHOLOGICAL ANALYSIS; NEURAL NETWORK ALGORITHM; SUBSTORM GROWTH PHASE; SUBSTORMS;

EARTH SCIENCES; GEOMAGNETISM;

AURORAL OVAL BOUNDARIES; AUTOMATED MORPHOLOGICAL ANALYSIS; SOLAR WIND;

EID: 0032137112     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/98GL01220     Document Type: Article

References (10)

1. Akasofu, S.-I., C.-I. Meng, , and K. Makita, Changes in the size of the open field line region during substorms, Planet. Space Sci., 40, 1513, 1992.
2. Blanchard, G. T., L. R. Lyons, and J. C. Samson, Accuracy of using 6300 Å auroral emission to identify the magnetic separatrix on the night side of Earth, J. Geophys. Res., 102, 9697, 1997.
3. Frank, L. A., and J. D. Craven, Imaging results from Dynamics Explorer 1, Rev. Geophys., 26, 249-284, 1988.
4. Kamide, Y., S. Kokubun, L. F. Bargatze, and L. A. Frank, The size of the polar cap as an indicator of substorm energy, Phys. Chem. Earth, in press, 1997.
5. Makita, K., C.-I. Meng, and S.-I. Akasofu, Temporal and spatial variations of the polar cap dimension inferred from the precipitation boundaries, J. Geophys. Res., 90, 2744, 1985.
6. Murphree, J. S., R. D. Elphinstone, L. L. Cogger, and D. Hearn, Viking optical substorm signatures, Magnelospheric Substorms, Geophys. Monogr. Ser., 64, edited by J. R. Kan, Thomas A. Potemra, S. Kokubun, T. Iijima, 1991.
7. Newell, P. T., S. Wing, C.-I. Meng, and V. Sigillito, The auroral position, structure, and intensity of precipitation from 1984 onward: An automated on-line data base, J. Geophys. Res., 96, 5877, 1991.
8. Ranganath, H. S., and G. Kuntimad, Image Segmentation using Pulse Coupled Neural Networks, Proc. of Intl. Conf. on Neural Networks, Orlando, FL, June-July 1994, 1285-1290.
9. Spann, Jr., J. F., M. Brittnacher, R. Elsen, G. A. Germany, and G. K. Parks, Initial response of the aurora to the January 10, 1997 magnetic cloud, Geophysical Research Leiters, in press, 1998.
10. Torr, M. R., D. G. Torr, M. Zukic, R. B. Johnson, J. Ajello, P. Banks, K. Clark, K. Cole, C. Keffer, G. Parks, B. Tsurutani, J. Spann, A far ultraviolet imager for the International Solar-Terrestrial physics mission, Space Sci. Rev., 71, 329, 1995.