Comarazamy, D. E., J. E. Gonzalez, C. A. Tepley, S. Raizada, and R. V. R. Pandya, Effects of atmospheric particle concentration on cloud microphysics over Arecibo, J. Geophys. Res., 111(D09205), doi:10.1029/2005JD006243, 2006.

Friedman, J. S., C. A. Tepley, S. Raizada, Q. H. Zhou, J. Hedin, and R. Delgado, Potassium Doppler-resonance lidar for the study of the mesosphere and lower thermosphere at the Arecibo Observatory, J. Atmos. Solar Terr. Phys., 65(16-18), 1411-1424, 2003.

Raizada and Tepley(2002)

Raizada, S., and C. Tepley, Iron Boltzmann Lidar Temperature and Density Observations from Arecibo - An Initial Comparison with Other Techniques, Geophys. Res. Lett., 29(12), 1-1:1-4, 2002.

Raizada and Tepley(2003)

Raizada, S., and C. A. Tepley, Seasonal variation of mesospheric iron layers at Arecibo: First results from low latitudes, Geophys. Res. Lett., 30(2), 54-1 - 54-4, 2003.

Raizada et al.(2004)

Raizada, S., C. A. Tepley, D. Janches, J. S. Friedman, Q. Zhou, and J. D. Mathews, Lidar observations of Ca and K metallic layers from Arecibo and compariso n with micrometeor sporadic activity, J. Atmos. Solar Terr. Phys., 66, 595-606, 2004.

Raizada et al.(2007a)

Raizada, S., M. Rapp, F.-J. Lübken, J. Höffner, M. Zecha, and J. M. C. Plane, Effect of ice particles on the mesospheric potassium layer at Spitsbergen (78N), Journal of Geophysical Research (Atmospheres), 112, 8307-+, doi: rm10.1029/2005JD006938, 2007a.

Raizada et al.(2007b)

Raizada, S., M. Rapp, F.-J. Lübken, J. Höffner, M. Zecha, and J. M. C. Plane, Effect of ice particles on the mesospheric potassium layer at Spitsbergen (78 $^{\circ}$ N), J. Geophys. Res., 112, doi:10.1029/2005JD006938, 2007b.

Sinha and Raizada(2000)

Sinha, H. S. S., and S. Raizada, Some new features of ionospheric plasma depletions over the Indian zone using all sky optical imaging, Geophys. Res., 52(8), 549-559, 2000.

Sinha et al.(1996)

Sinha, H. S. S., R. N. Misra, H. Chandra, S. Raizada, N. Dutt, and G. D. Vyas, Multi-wavelength optical imaging of ionospheric plasma depletions, Ind. J. of Rad. and Space Phys, 25, 44-52, 1996.

Sinha et al.(1999)

Sinha, H. S. S., S. Raizada, and R. N. Misra, First simultaneous in situ measurement of electron density and electric field fluctuations during spread F in the Indian zone, Geophys. Res., 26(12), 1,699-1,672, 1999.

Sinha, H. S. S. and Raizada, S.(2000a)

Sinha, H. S. S. and Raizada, S., Some new features of electron density irregularities over SHAR during strong spread F, Ann. Geophys., 18(2), 141-151, 2000a.

Sinha, H. S. S. and Raizada, S.(2000b)

Sinha, H. S. S. and Raizada, S., First in situ measurement of electric field during spread F in the Indian Zone, Ann. Geophys., 18(5), 523-531, 2000b.

Sridharan et al.(1997)

Sridharan, R., H. Chandra, S. R. Das, R. Sekar, H. S. S. Sinha, D. Pallam Raju, R. Narayanan, S. Raizada, R. N. Misra, R. Raghavrao, P. B. Rao, P. V. S. Ramarao, V. V. Somayajulu, V. V. Babu, and A. D. Danilov, Ionization Hole Campaign - A coordinated rocket and ground based study at the onset of equatorial spread-F :- First Results, J. Atmos. Terr. Phys., 59(16), 2,051-2,067, 1997.

Strelnikova et al.(2007)

Strelnikova, I., M. Rapp, S. Raizada, and M. Sulzer, Meteor smoke particle properties derived from Arecibo incoherent scatter radar observations, , 34, 15,815-+, doi: rm10.1029/2007GL030635, 2007.

Tepley et al.(2003)

Tepley, C. A., S. Raizada, Q. H. Zhou, and J. Friedman, Observations of Ca⁺, K, and Electron Density using Lidar and Incoherent Scatter Radar at Arecibo, Geophys. Res. Lett., 30(1), 1,009, 2003.

Zhou et al.(2005)

Zhou, Q., J., J. S. Friedman, S. Raizada, C. Tepley, and Y. T. Morton, Morphology of nighttime ion, potassium and sodium layers in the meteor zone above arecibo, J. Atmos. Solar Terr. Phys., 67(13), 1245-1257, doi:10.1016/j.jastp.2005.06.013, 2005.

Zhou et al.(2008)

Zhou, Q., S. Raizada, C. A. Tepley, and J. Plane, Seasonal and Diurnal Variation of Electron and Iron Densities in the MLT Region Above Arecibo, , 70, 49-60, 2008.