1. Observations of substorm-associated particle-flux variations at 6⩽L⩽8 with GEOS-1

   • A. Korth
   • G. Kremser
   • B. Wilken

   OriginalPaper Pages: 501 - 509

2. Some early results of the keV plasma experiment on GEOS-1

   • H. Borg
   • L. -A. Holmgren
   • G. Kremser

   OriginalPaper Pages: 511 - 535

3. Dynamics of magnetospheric ion Composition as observed by the GEOS mass spectrometer

   • J. Geiss
   • H. Balsiger
   • H. Rosenbauer

   OriginalPaper Pages: 537 - 566

4. Thermal/suprathermal plasmas observed by the S-302 experiment on GEOS-1

   • J. F. E. Johnson
   • J. J. Sojka
   • G. L. Wrenn

   OriginalPaper Pages: 567 - 580

5. Electron density and temperature, as measured by the mutual impedance experiment on board GEOS-1

   • P. M. E. Decreau
   • C. Beghin
   • M. Parrot

   OriginalPaper Pages: 581 - 595

6. Plasma density measurements from the GEOS-1 relaxation sounder

   • J. Etcheto
   • J. J. Bloch

   OriginalPaper Pages: 597 - 610

7. Small scale structure of magnetospheric electron density through on-line tracking of plasma resonances

   • B. Higel

   OriginalPaper Pages: 611 - 631

8. Multi-experiment determination of plasma density and temperature

   • P. M. E. Decreau
   • J. Etcheto
   • D. T. Young

   OriginalPaper Pages: 633 - 645

9. Substorm-associated injections of energetic ions observed by GEOS-1 and ATS-6 in and near synchronous altitude

   • B. Wilken
   • T. A. Fritz
   • G. Kremser

   OriginalPaper Pages: 647 - 657

10. Observations of low-energy electrons from AE-C in the south polar cusp during the geomagnetic storm of September 21, 1977

    • T. A. Potemra
    • C. O. Bostrom
    • J. S. Lee

    OriginalPaper Pages: 659 - 666

11. DMSP-F2 observations of cusplike electron precipitation regions during the September 19–21, 1977 event

    • M. Candidi
    • H. W. Kroehl
    • R. W. Buhmann

    OriginalPaper Pages: 667 - 675