Richard H. Comfort
Publications

  1. Blair, J. T., R. H. Comfort, and N. A. Contaxes, The natural space environment 150 km to 800 km above the Earth, Northrop TR-792-8-315, 1968.

  2. Comfort, R. H., Semiempirical analytical approximations to cross sections for elastic scattering of low energy electrons by atomic hydrogen, M.S. Thesis, The University of Alabama in Huntsville, 1969.

  3. Comfort, R. H., Diurnal variations of electron energy balance in the middle ionosphere, Northrop TR-793-705, 1970.

  4. Comfort, R. H., Empirical analytic transformations between geographic and corrected geomagnetic coordinates, NASA CR-123592, 1970.

  5. Comfort, R. H., Electron density true height analysis program-user's guide, Northrop M-794- 9l3, 1971.

  6. Comfort, R. H., Auroral oval kinematics program, NASA CR-61373, 1972.

  7. Comfort, R. H., Auroral oval geometry model, Northrop Services TR-241-1113, 1972.

  8. Comfort, R. H., Effective velocity power laws for electron-neutral collision frequencies, Planet. Space Sci,, 23, 533, 1975.

  9. Comfort, R. H., Kinetic description of ionospheric dynamics in the three-fluid approximation, Ph.D. Dissertation, The University of Alabama in Huntsville, 1975 (also available as NASA CR-2572, 1975).

  10. Comfort, R. H., S. T. Wu, and G. R. Swenson, An analysis of auroral E region neutral winds based on incoherent scatter radar observations at Chatanika, Planet. Space Sci., 24, 541, 1976.

  11. Comfort, R. H., E. Tandberg-Hanssen and S. T. Wu, Non-force-free solar magnetic fields in magnetohydrostatic equilibrium, Astrophys. J., 231, 927, 1979.

  12. Comfort, R. H. and J. L. Horwitz, Low energy ion pitch angle distributions observed on the dayside at geosynchronous altitudes, J. Geophys. Res., 86, 1621, 1981.

  13. Comfort, R. H., C. R. Baugher, and C. R. Chappell, Use of the thin sheath approximation for obtaining ion temperatures from the ISEE-1 limited aperture RPA, J. Geophys. Res., 87, 5709, 1982.

  14. Wang, S., J. F. Wang, and R. H. Comfort, A magnetohydrodynamic model of whistler duct structure in the magnetosphere, Planet. Space Sci., 32, 143-150, 1984.

  15. Waite, J. H., Jr., J. L. Horwitz, and R. H. Comfort, Diffusive equilibrium distributions of He+ in the plasmasphere, Planet. Space Sci., 32, 611-618, 1984.

  16. Nagai, T., J. H. Waite, Jr., J. L. Green, D. R. Chappell, R. C. Olsen, and R. H. Comfort, First measurements of supersonic polar wind in the polar magnetosphere, Geophys. Res. Lett. 11, 669-672, 1984.

  17. Horwitz. J. L., R. H. Comfort, and C. R. Chappell, Thermal ion composition measurements of the formation of the new outer plasmasphere and double plasmapause during storm recovery phase, Geophys. Res. Lett., 11, 701-704, 1984.

  18. Comfort, R. H., J. H. Waite, Jr., and C. R. Chappell, Thermal ion temperatures from the retarding ion mass spectrometer on DE-1, J. Geophys. Res., 90, 3475-3486, 1985.

  19. Olsen, R. C., M. O. Chandler, T. E. Moore, J. H. Waite, Jr., D. L. Reasoner, A. P. Biddle, and R. H. Comfort, DE-1/RIMS operational characteristics, NASA TM-86527, 1985.

  20. Bird, J. C., G. R. Swenson, and R. H. Comfort, Auroral thermosphere temperatures from observations of 6300A x emissions, NASA TM-86530, 1985.

  21. Samir, U, R. H. Comfort, C. R. Chappell, and N. H. Stone, Observations of low energy ions in the wake of a magnetospheric satellite, J. Geophys. Res., 91, 5725-5736, 1986.

  22. Decreau, P. M. E., D. Carpenter, C. R. Chappell, R. H. Comfort, J. L. Green, R. C. Olsen, and J. H. Waite, Jr., Latitudinal plasma distribution in the dusk plasmaspheric bulge: Refilling phase and quasi-equilibrium state, J. Geophys. Res., 91, 6929-6943, 1986.

  23. Waite, J. H., Jr., J. F. E. Johnson, C. R. Chappell, D. L. Gallagher, R. C. Olsen, R. H. Comfort, D. Weimer, S. D. Shawhan, W. K. Peterson, and E. G. Shelley, Plasma and wave observations of a PC-5 wave event, J. Geophys. Res., 91, 11,147-11,161, 1986.

  24. Horwitz, J. L., L. H. Brace, R. H. Comfort, and C. R. Chappell, Dual spacecraft measurements of Plasmasphere and ionosphere structure, J. Geophys. Res., 91, 11,203- 11,216, 1986.

  25. Comfort, R. H., Plasmasphere thermal structure as measured by ISEE-1 and DE-1, Adv. Space Res., 6, 31-40, 1986.

  26. Horwitz, J. L., R. H. Comfort, and C. R. Chappell, Plasmasphere and plasmapause characteristics as measured by DE-1, Adv. Space Res., 6, 21-29, 1986.

  27. Kozyra, J. U., E. G. Shelley, R. H. Comfort, L. H. Brace, T. E. Cravens and A. F. Nagy, The role of ring current 0+ in the formation of Stable Auroral Red arcs, J. Geophys. Res., 92, 7487-7502, 1987.

  28. Samir, U., R. H. Comfort, N. H. Stone and K. H. Wright, Jr., Intercomparison among plasma wake models for plasmaspheric and ionospheric conditions, Planet. Space Sci., 35, 1477- 1487, 1987.

  29. Roberts, W. T., Jr., J. L. Horwitz, R. H. Comfort, J. H. Waite, Jr., J. L. Green and C. R. Chappell, Heavy ion enhancements in the outer plasmasphere, J. Geophys. Res., 92, 13,499- 13,512, 1987.

  30. Kozyra, J. U., T. E. Cravens, A. F. Nagy, D. A. Gurnett, R. L. Huff, R. H. Comfort, J. H. Waite, Jr., L. H. Brace, R. A. Hoffman, J. D. Winningham, J. L. Burch, and W. K. Peterson, Satellite observations of new particle and field signatures associated with SAR arc field lines at magnetospheric heights, Adv. Space Res., 7, (8)3-(8)-6, 1987.

  31. Moore, T. E., D. L. Gallagher, J. L. Horwitz, and R. H. Comfort, MHD wave breaking in the outer plasmasphere, Geophys. Res. Lett., 14, 1007, 1987.

  32. Moore, T. E., D. L. Gallagher, J. L. Horwitz, and R. H. Comfort, Reply to Comment on "MHD Wave Breaking in the Outer Plasmasphere", Geophys. Res. Lett., 5, 474, 1988.

  33. Brace, L. H., C. R. Chappell, M. O. Chandler, R. H. Comfort, J. L. Horwitz and W. R. Hoegy, F-region electron temperature signatures of the plasmapause based on Dynamics Explorer 1 and 2 measurements, J. Geophys. Res., 93, 1896-1908, 1988.

  34. Gallagher, D. L., P. C. Craven, and R. H. Comfort, An empirical model of the Earth's plasmasphere, Adv. Space Res., 8, (8)15-(8)24, 1988.

  35. Comfort, R. H., The magnetic mirror force in plasma fluid models, Modeling Magnetospheric Plasma, ed. T. E. Moore and J. H. Waite, Jr., American Geophysical Union, p. 51-53, 1988.

  36. Comfort, R. H., I. T. Newberry, and C. R. Chappell, Preliminary statistical survey of plasmaspheric ion properties from observations by DE-1/RIMS, Modeling Magnetospheric Plasma, ed. T. E. Moore and J. H. Waite, Jr., American Geophysical Union, p. 107-114, 1988.

  37. Chandler, M. O., J. U. Kozyra, J. L. Horwitz, R. H. Comfort, W. K. Peterson, and L. H. Brace, Modeling of the thermal plasma in the outer plasmasphere: A magnetospheric heat source, Modeling Magnetospheric Plasma ed. T. E. Moore and J. H. Waite, Jr., American Geophysical Union, p. 101-105, 1988.

  38. Samir, U., R. H. Comfort, N. Singh, K. S. Hwang, and N. H. Stone, Insight into theory/experiment comparisons of wake measurements in the plasmasphere, Planet. Space Sci., 37, 873, 1989.

  39. Newberry, I. T., R. H. Comfort, P. G. Richards, and C. R. Chappell, Thermal He+ in the plasmasphere: comparison of observations with numerical calculations, J. Geophys. Res., 94, 15, 265, 1989.

  40. Horwitz, J. L., R. H. Comfort, and C. R. Chappell, A statistical characterization of plasmasphere structure and boundary locations, J. Geophys. Res., 95, 7937, 1990.

  41. Horwitz, J. L., R. H. Comfort, P. G. Richards, M. O. Chandler, C. R. Chappell, P. Anderson, W. B. Hanson, and L. H. Brace, Plasmasphere-ionosphere coupling II: ion composition measurements at plasmaspheric and ionospheric altitudes and comparison with modeling results, J. Geophys. Res., 95, 7949, 1990.

  42. Comfort, R. H. and M. O. Chandler, Semi-empirical analytical model for the spin modulation of RPA fluxes, J. Spacecraft Rock., 27, 577, 1990.

  43. Craven, P. D., R. H. Comfort, D. L. Gallagher, R. L. West, and C. R. Chappell, A study of the statistical behavior of ion temperatures from DE1/RIMS, Modeling Magnetospheric Plasma Processes, Ed., G. R. Wilson, American Geophysical Union, 173, 1991.

  44. Zhang, X., R. H. Comfort, Z. E. Musielak, T. E. Moore, D. L. Gallagher, and J. L. Green, Propagation characteristics of Pc3 compressional waves generated at the dayside magnetopause, J. Geophys. Res., 98, 15403, 1993.

  45. Garner, T. W., P. G. Richards, and R. H. Comfort, Anomalous nighttime electron temperature events over Millstone Hill, J. Geophys. Res., 99, 11411, 1994.

  46. Giles, B. L., C. R. Chappell, T. E. Moore, R. H. Comfort, and J. H. Waite, Jr., Statistical survey of pitch angle distributions in core (0-50 eV) ions from Dynamics Explorer 1: Outflow in the auroral zone, polar cap, and cusp, J. Geophys. Res., 99, 17483, 1994.

  47. Craven, P. D., R. H. Comfort, P. G. Richards, and J. Grebowsky, Comparisons of modeled N+, O+, H+, and He+ in the mid-latitude ionosphere with mean densities and temperatures from Atmospheric Explorer, J. Geophys. Res., 100, 257, 1995.

  48. Zhang, X., R. H. Comfort, D. L. Gallagher, J. L. Green, Z. E. Musielak, and T. E. Moore, Magnetospheric filter effect for Pc 3 Alfven mode waves, J. Geophys. Res., 100, 9585, 1995.

  49. Comfort, R. H., Thermal structure of the plasmasphere, Adv. Space Res., 17, (10)175, 1996.

  50. Gallagher, D. L., P. D. Craven, R. H. Comfort, and T. E. Moore, On the azimuthal variation of the equatorial plasmapause, J. Geophys. Res., 100, 23597, 1995.

  51. Comfort, R. H., Richards, P. G., P. D. Craven, and M. O. Chandler, Problems in simulating ion temperatures in low density flux tubes, AGU Monograph 93, Cross-scale Coupling in Space Plasmas, ed. James L. Horwitz, Nagendra Singh, and James L. Burch, p. 155-160, 1995.

  52. Comfort, R. H., P. D. Craven, and P. G. Richards, A modified thermal conductivity for low density plasma magnetic flux tubes, Geophys. Res. Lett., 22, 2457, 1995.

  53. Craven, P. D., D. L. Gallagher, and R. H. Comfort, The relative concentration of He+ in the inner magnetosphere as observed by DE1/RIMS, J. Geophys. Res., 102, 2279, 1997.

  54. Gallagher, D. L., P. D. Craven, and R. H. Comfort, A simple model of magnetospheric trough total density, submitted to J. Geophys. Res., 1997.

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Last updated 9/19/97