Publications

  1. Collins, R., C. Triplett, A. Barjatya, G. Lehmacher and D. Fritts (2015), Using lidar and rockets to explore turbulence in the atmosphere, SPIE Newsroom, http://spie.org/x113533.xml.
  2. Lehmacher, G. A., M. F. Larsen, and C. L. Croskey (2015), Observation of electron biteout regions below sporadic E layers at polar latitudes, Ann. Geophys., 33, 371–380, doi:10.5194/angeo-33-371-2015.
  3. Lehmacher, G. A., T. M. Gaulden, M. F. Larsen, J. E. Craven, Multiple neutral density measurements in the lower thermosphere with cold-cathode ionization gauges, J. Atmos. Solar-Terr. Phys., 92 (2013) 137–144.
  4. Lehmacher, G. A., Scott, T. D., Larsen, M. F., Bilén, S. G., Croskey, C. L., Mitchell, J. D., Rapp, M., Lübken, F.-J., and Collins, R. L.: The Turbopause experiment: atmospheric stability and turbulent structure spanning the turbopause altitude, Ann. Geophys., 29, 2327-2339, doi:10.5194/angeo-29-2327-2011, 2011. 
  5. Collins, R. L., Lehmacher, G. A., Larsen, M. F., and Mizutani, K.: Estimates of vertical eddy diffusivity in the upper mesosphere in the presence of a mesospheric inversion layer, Ann. Geophys., 29, 2019-2029, doi:10.5194/angeo-29-2019-2011, 2011. 
  6. Kouahla, M. N., G. Moreels, M. Faivre, J. Clairemidi, J.W. Meriwether, G.A. Lehmacher, E. Vidal, O. Veliz, 3D Imaging of the OH Mesospheric Emissive Layer, J. Adv. Space Res., 45(2), 260, 2010.
  7. Lehmacher, G. A., E. Kudeki, A. Akgiray, L. Guo, P. Reyes, and J. Chau, Radar cross sections for mesospheric echoes at Jicamarca, Ann. Geophys., 27, 2675-2684, 2009.
  8. Guo, L., and G. Lehmacher, First meteor radar observations of tidal oscillations over Jicamarca (11.95° S, 76.87° W), Ann. Geophys., 27, 2575-2583, 2009
  9. Moreels, G., Clairemidi, J., Faivre, M., Mougin-Sisini, D., Kouahla, M. N., Meriwether, J.W., Lehmacher, G.A., Vidal, E., Veliz, O., Stereoscopic imaging of the hydroxyl layer at low latitudes, Planet. Space Sci., 56(11), 1467-1479, 2008.
  10. Moreels, G., Clairemidi, J., Faivre, M., Pautet, D.,  Rubio da Costa, F., Rousselot P., Meriwether, J.W., Lehmacher, G.A., Vidal E., Chau J.L., Monnet, G., Near-infrared sky background fluctuations at mid- and low latitudes. Experimental Astronomy, doi: 10.1007/s10686-008-9089-6, 2007.
  11. Guo, L., G. A. Lehmacher, E. Kudeki, A. Akgiray, R. Sheth, J. Chau Turbulent Energy Dissipation Rates and Eddy Diffusivities in the Tropical Mesosphere Obtained from Jicamarca Radar Data, J. Adv. Space Res., 40 (2007), 744-750, doi:/10.1016/j.asr.2007.05.068, 2007.
  12. Lehmacher, G. A., L. Guo, E. Kudeki, J. Chau, High-resolution observations of mesospheric layers with the Jicamarca VHF radar, J. Adv. Space Res., 40 (2007), 734-743, doi:/10.1016/j.asr.2007.05.059, 2007.
  13. Lehmacher, G. A., C. L. Croskey, J. D. Mitchell, M. Friedrich, F.-J. Lübken, M. Rapp, E. Kudeki, and D. C. Fritts, Intense turbulence observed above a mesospheric temperature inversion at equatorial latitude, Geophys. Res. Lett., 33, L08808, doi: 10.1029/2005GL024345, 2006.
  14. Friedrich, M., K. M. Torkar, G. A. Lehmacher, C. L. Croskey, J. D. Mitchell, E. Kudeki, M. Milla, Rocket and Incoherent Scatter Radar Common-Volume Electron Measurements of the Equatorial Lower Ionosphere, Geophys. Res. Lett., 33, L08807, doi:10.1029/2005GL024622, 2006.
  15. Kudeki, E., M. Milla, M. Friedrich, and G. Lehmacher, ALTAIR incoherent scatter observations of the equatorial daytime ionosphere, Geophys. Res. Lett., 33, L08108, doi:10.1029/2005GL025180, 2006..
  16. Sheth, R., E. Kudeki, G. Lehmacher, M. Sarango, R. Woodman, L. Guo, P. Reyes, A high-resolution study of mesospheric fine structure with the Jicamarca MST radar, Ann. Geophys., 24, 1281-1293, 2006.
  17. Lehmacher, G., First Evaluation of new undergraduate space research projects, Adv. Space Res., 34, 2110-2115, 2004. doi:10.1016/j/asr.2003.03.070
  18. Lehmacher, G., and E. Kudeki, Variability of equatorial mesospheric echoes, Adv. Space Res., 32(5), 747-752, 2003.
  19. Oberheide, J., G. A. Lehmacher, D. Offermann. K. U. Grossmann, A. H. Manson, C. E. Meek, F. J. Schmidlin, W. Singer, and R. A. Vincent, Geostrophic wind fields in the stratosphere and mesosphere from satellite data, J. Geophys.Res., 107, 8175, doi: 10.1029/JD000655, 2002.
  20. Riese, M., V. Küll, X. Tie, G. Brasseur, D. Offermann, G. Lehmacher, and A. Franzen, Modeling of nitrogen species measured by CRISTA, Geophys. Res. Lett., 27, 2221-2224, 2000.
  21. Lehmacher, G. A., J. Oberheide, F. J. Schmidlin and D. Offermann, Zero miss time and zero miss distance experiments for validation of CRISTA 2 temperatures, 32nd COSPAR General Assembly, Nagoya, Japan, 12-19 July 1998. Adv. Space Res., 26(6), 965-969, 2000.
  22. Von Zahn, U., D. M. Hunten, and G. Lehmacher, Helium in Jupiter's atmosphere: results from the Galileo probe Helium Interferometer Experiment, J. Geophys. Res., 103, 22,815-22,829, 1998.
  23. Goldberg, R. A., G. A. Lehmacher, F. J. Schmidlin, D. C. Fritts, J. D. Mitchell, C. L. Croskey, M. Friedrich, and W. E. Swartz, Equatorial dynamics observed by rocket, radar, and satellite during the CADRE/MALTED campaign. 1. Programmatics and small-scale fluctuations, J. Geophys. Res., 102, 26179, 1997.
  24. Fritts, D. C., J. F. Garten, D. M. Riggin, R. A. Goldberg, G. A. Lehmacher, F. J. Schmidlin, S. McCarthy, E. Kudeki, C. D. Fawcett, M. H. Hitchman, R. S. Lieberman, I. M. Reid, and R. A. Vincent, Equatorial dynamics observed by rocket, radar, and satellite during the CADRE/MALTED campaign. 2. Mean wave structures, coherence, and variability, J. Geophys. Res., 102, 26,191-26,216, 1997.
  25. Lehmacher, G., R. A. Goldberg, F. J. Schmidlin, C. L. Croskey, J. D. Mitchell, and W. E. Swartz, Electron density fluctuations in the equatorial mesosphere: Neutral turbulence or plasma fluctuations?, Geophys. Res. Lett., 24, 1715-1718, 1997.
  26. Seiff, A, D. B. Kirk, T. Knight, J. D. Mihalov, R. C. Blanchard, R. E. Young, G. Schubert, U. von Zahn, G. Lehmacher, F. S. Milos, and J. Wang, Structure of the atmosphere of Jupiter: Galileo probe measurements, Science, 272, 844-845, 1996.
  27. Lehmacher, G. and F.-J. Lübken, Simultaneous observation of convective adjustment and turbulence generation by mesospheric gravity wave generation, Geophys. Res. Lett., 22, 2477-2480, 1995.
  28. Hillert, W., F.-J. Lübken, and G. Lehmacher, TOTAL: a rocket-borne instrument for high resolution measurements of neutral air turbulence during DYANA, J. Atmos. Terr. Phys., 56, 1835-1852, 1994.
  29. Lübken, F.-J., W. Hillert, G. Lehmacher, U. von Zahn, T. A. Blix, E. V. Thrane, H.-U. Widdel, G. Kokin, A. K. Knyazev, and A. Hauchecorne, Morphology and sources of turbulence in the mesosphere, J. Atmos. Terr. Phys., 56, 1809, 1994
  30. Lübken, F.-J, W. Hillert, G. Lehmacher, U. von Zahn, M. Bittner, D. Offermann, F. J. Schmidlin, A. Hauchecorne, M. Mourier, and P. Czechowsky, Intercomparison of density and temperature profiles obtained by lidar, ionization gauges, falling spheres, datasondes and radiosondes during the DYANA campaign, J. Atmos. Terr. Phys., 56, 1969-1984, 1994
  31. Thrane, E. V, T. A. Blix, U.-P. Hoppe, F.-J. Lübken, W. Hillert, G. Lehmacher, and D. C. Fritts, A study of small-scale waves and turbulence in the mesosphere using simultaneous in situ observations of neutral gas and plasma fluctuations, J. Atmos. Terr. Phys., 56, 1797, 1994
  32. Lübken, F.-J., W. Hillert, G. Lehmacher, and U. von Zahn, Experiments revealing small impact of turbulence on the energy budget of the mesosphere and lower thermosphere, J. Geophys. Res., 98, 20,369-20,384, 1993.
  33. Lübken, F.-J., G. Lehmacher, T. Blix, U.-P. Hoppe, E. Thrane, J. Cho, and W. Swartz, First in situ observations of neutral and plasma density fluctuations within a PMSE layer, Geophys. Res. Lett., 20, 2311-2314, 1993.

Presentations

  1. Lehmacher, G., A. Desai, E. Kudeki, P. Reyes, M. Milla, Ionospheric Puzzles: 150-km Echoes, Seminar, Geophysical Institute, University of Alaska Fairbanks, August 2017.
  2. Lehmacher, G., E. Kudeki, P. Reyes, K. Lee, A quasi-monochromatic wave event in the equatorial mesosphere observed with the Jicamarca radar, NSF CEDAR Workshop, Keystone, Colorado, June 18-23, 2017.
  3. Lehmacher, G., E., Kudeki, M. Milla, The MST-ISR-EEJ mode at Jicamarca Observatory and coupling in the equatorial ionosphere: Which complementary measurements are needed?, ibid. (invited)
  4. Desai, A., G. Lehmacher, P. Reyes, E. Kudeki, Studying the day-to-day variability of 150-km echoes, ibid.
  5. Lehmacher, G., E. Figg, E. Kudeki, P. Reyes, K. Lee, J. Chau, Mesospheric Echoes at Jicamarca, 15th International Workshop on Technical and Scientific Aspects of MST Radar (MST15/iMST2), Tachikawa, Tokyo, Japan, May 27-31, 2017. (Invited)
  6. Lee, K., Kudeki, E., Reyes, P., Lehmacher, G., Extracting mesospheric wind data using clustering algorithm, ibid.
  7. Kudeki, E., Reyes, P., Lehmacher, G., J. Chau, 150-km echoes at Jicamarca, ibid. (invited)
  8. Lehmacher, G., A. Desai, Kudeki, E., Reyes, P., Seasonal variation of layering and wave activity in 150-km echoes at Jicamarca, ibid.
  9. Lehmacher, G., E. Kudeki, P. Reyes, M. Milla, The MST-ISR-EEJ mode at Jicamarca, fine structure and interferometry with mesospheric echoes, 2016 NSF CEDAR Workshop, Santa Fe.
  10. Lehmacher, G., R. Collins, B. Strelnikov, Variation and Fine Structure of Mesospheric Turbulence Layers as Observed During the MTeX Rocket Experiment, SA13A-2333, 2015 AGU Fall Meeting, San Francisco.
  11. Figg, E., G. Lehmacher, Radar Imaging of Equatorial Mesospheric Turbulence: A Case Study Using New Data from the Jicamarca Radar Observatory, SA13B-2344, 2015 AGU Fall Meeting, San Francisco.
  12. plus a few more as co-author , 2015 AGU Fall Meeting, San Francisco.
  13. Burkholder, B., G. Lehmacher, Rocket Investigations of Density and Turbulence with Ionization Gauges and Accelerometers , Forum on Creative Inquiry, Clemson University, April 2015.
  14. Robinson, Rebecca, G. Lehmacher, M. Milla, VHF Radar Comparison Study: Doppler Velocity Spectra of Equatorial Mesospheric Echoes, CEDAR Workshop, Seattle, June 2014.
  15. Lehmacher, G., E. Kudeki, M. Milla, MST-ISR-EEJ: A new radar mode to study gravity waves from D region to F region at Jicamarca Radio Observatory, 14th MST Workshop, Sao Jose dos Campos, Brazil, May 2014.
  16. Lehmacher, G., The Air in Between: Aeronomy Research at Clemson University, Department of Environmental Engineering and Earth Sciences, Clemson University, Oct 2013 (invited).
  17. Lehmacher, G., M. Larsen, C. Croskey, Observation of Electron Biteout Regions Below Sporadic E Layers at Arctic Latitude, SA11B-1926, Fall AGU Meeting, San Francisco, 2013.
  18. Lehmacher, G., Self-contained micro-g accelerometer, AGU Town Hall Meeting on Polar Suborbital Science in the Upper Mesosphere (PoSSUM), ibid.
  19. Lehmacher, G., Turbulence and TMA, John Hopkins University, Applied Physics Laboratory, April 2013 (invited)
  20. Lehmacher, G., Why probe mesospheric turbulence? Suborbital Aeronomy Conference, John Hopkins University, Annapolis, MD, April 2013.
  21. Lehmacher, G., Kuyeng, K., Milla, M., Recent observations of equatorial mesospheric echoes, NSF CEDAR Workshop, Santa Fe, NM, June 2012.
  22. Nooner, J., G. Lehmacher, GPS TEC measurements at Clemson, SC, during Solar Minimum, ibid.
  23. Kudeki, Erhan, Gerald Lehmacher, and Jorge L. Chau, Overview of VHF radar observations of equatorial mesosphere and ionosphere, Workshop MST-13, Kühlungsborn, Germany, March 2012.
  24. Lehmacher, G., Future Sounding Rocket Projects, Ideas Workshop, Stockholm, 10-11 November 2011, (invited)
  25. Lehmacher, Gerald, Erhan Kudeki, Pablo Reyes, Marco Milla, Jorge Chau Jicamarca - 45 Years of Perennial Equatorial Mesospheric Echoes, EISCAT Scientific Operations Committee Workshop, Jicamarca, Peru, March 2011.
  26. Lehmacher, Gerald, Tyler Scott, Miguel Larsen, Sven Bilén, Charles Croskey, Jack Mitchell, Franz-Josef Lübken, Markus Rapp, Richard Collins, Simultaneous observations of density fluctuations, trimethyl aluminum trail diffusion, wind shears and gravity waves in the turbopause region, 38th COSPAR Scientific Assembly 2010, Bremen, Germany, 18-25 July 2010.
  27. Lehmacher, G., Turbopause – measurements and concepts, NSF CEDAR Workshop, Boulder, CO, 21-25 June 2010, workshop organizer.
  28. Lehmacher, G., Rocket instrumentation for the mesosphere and thermosphere, NSF CEDAR Workshop, Santa Fe, NM, 27 June – 3 July 2009, invited tutorial.
  29. Lehmacher et al., Mesospheric measurements at Jicamarca, ibid.
  30. Reyes et al., Solar Flare of 7 Sep 2005, ibid.
  31. Lehmacher, Gerald, Miguel Larsen, Sven Bilén, Charles Croskey, Jack Mitchell, Franz-Josef Lübken, Markus Rapp, Richard Collins, Instability and turbulence near the turbopause from simultaneous observations of trimethyl aluminum trail diffusion and in situ small-scale fluctuation measurements, 19th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Bad Reichenhall, Germany, 7-11 June 2009.
  32. Lehmacher, G., Erhan Kudeki, Jorge Chau, Kelvin-Helmholtz instabilities in the mesosphere observed by the Jicamarca radar, 12th International Workshop on MST Radar, London, Ontario, 17-23 May 2009.
  33. Kudeki et al., Calibrated radar observations of the equatorial mesosphere and ionosphere during an 11-day campaign, 12th International Workshop on MST Radar, London, Ontario, 17-23 May 2009.
  34. Lehmacher, G. et al., Update on mesospheric measurements at Jicamarca Radio Observatory, CEDAR Workshop, Midway, Utah, 16-21 June 2008.
  35. Guo, L., G. Lehmacher, and J. Chau, Initial results from JASMET (Jicamarca Meteor Radar): Wind measurements, ISEA-12, Crete, Greece, 18-24 May 2008.
  36. Lehmacher, G., E. Kudeki, A. Akgiray, and J. Chau, Radar cross-sections for mesospheric echoes at Jicamarca: measurements and estimates from turbulence theory, ISEA-12, Crete, Greece, 18-24 May 2008.
  37. Lehmacher, Gerald, Lin Li, Miguel Larsen, John Craven, Mark Conde, Neutral density measurements in the polar thermosphere during the HEX-2 rocket campaign, IUGG XXIV 2007 General Assembly, Perugia, Italy, 2-13 July 2007.
  38. Moreels et al., Stereoscopic imaging of gravity waves in the mesosphere at mid and low latitudes, ibid.
  39. Lehmacher, G., L. Guo, E. Kudeki, J. Chau, A Two-Year Study of 50-MHz Mesospheric Echoes and Winds at Jicamarca, Peru, 2007 Joint Assembly, Acapulco, Mexico, 22-25 May 2007.
  40. Lehmacher, G., Radar and Rocket Experiments at Equatorial and Polar Latitudes: Science and Adventure,Physics Colloquium, Western Kentucky University, Bowling Green, KY, 2 April 2007 (invited).
  41. Lehmacher, G., Instabilities and turbulence in the mesosphere (50-100 km) as observed by rockets and radar, Fluid Mechanics Seminar, Clemson University, 16 March 2007.
  42. Lehmacher, G., High-Resolution Radar Observations in the Equatorial Mesosphere, Dept. of Physics and Astronomy, Clemson University, 14 Sep 2006 (invited)
  43. Lehmacher, G. et al., High-resolution observations of mesospheric layers with the Jicamarca VHF radar, C2.3-0005-06, 36th COSPAR, Beijing, China, 18-24 July 2006 (invited)
  44. Guo, L. et al., Turbulent Kinetic Energy Dissipation Rate and Eddy Diffusivity Study in the Tropical Mesosphere Using Jicamarca Radar Data C2.3-0006-06, 36th COSPAR, Beijing, China, 18-24 July 2006.
  45. Moreels, G. et al., Stereoscopic imaging of gravity waves in the mesosphere over Europe and over Perù, 36th COSPAR, Beijing, China, 18-24 July 2006.
  46. Lehmacher, G., Small-Scale Processes in the Low-Latitude Mesosphere and Lower Thermosphere Observed by Radar and Rocket, Dept. of Physics and Astronomy, College of Charleston, 15 Mar 2006 (invited)
  47. Lehmacher, G. et al., Turbulence and Mixing at the Equatorial Mesopause: Results from a Rocket/Radar Experiment, AGU 2005 Fall Meeting, San Francisco, CA, 5-9 Dec 2005.
  48. Guo, L. et al., Turbulent Kinetic Energy Dissipation Rates in the Tropical Mesosphere From the Jicamarca MST Radar, AGU 2005 Fall Meeting, San Francisco, CA, 5-9 Dec 2005.
  49. Kudeki, E. et al., Preliminary Results of ``World Month'' Observations at Jicamarca, AGU 2005 Fall Meeting, San Francisco, CA, 5-9 Dec 2005.
  50. Guo, L., G. Lehmacher, E. Kudeki, R. Sheth, J. Chau, M. Milla, P. Reyes, Turbulent Kinetic Energy Dissipation Rates Estimation in the Tropical Mesosphere Using 2002-2004 Jicamarca Radar Data, NSF CEDAR Workshop, Santa Fe, NM, June 2006
  51. Lehmacher, G., C. Croskey, J. Mitchell, M. Friedrich, F.-J. Lübken, M. Rapp, E. Kudeki, D. Fritts, EQUIS 2/LEMMA: First results, 17th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Sandefjord, Norway, 30 May – 2 June 2005.
  52. Lehmacher, G., C. Croskey, J. Mitchell, M. Friedrich, F.-J. Lübken, M. Rapp, E. Kudeki, D. Fritts, Observations of Neutral and Electron Structure in the Equatorial Mesosphere by Rocket and Radar During EQUIS-2/LEMMA, AGU Spring Meeting, SA23B, New Orleans, LA, 23-27 May 2005.
  53. Sheth, R., E. Kudeki, G. Lehmacher, L. Guo, M. Sarango, P. Reyes, Jicamarca MST High-Resolution Power-Width Study, 11th International Symposium on Equatorial Aeronomy (ISEA-11), Taipei, Taiwan, 9-14 May 2005.
  54. Lehmacher, G. A.; Croskey, C. L., Mitchell, J. D.; Friedrich, M.; Luebken, F.-J., Rapp., M.; Kudeki, E.; Fritts. D. C., Layers in the Equatorial Mesosphere: First Results from Rocket and Radar Measurements during EQUIS-2/LEMMA, 11th International Symposium on Equatorial Aeronomy (ISEA-11), Taipei, Taiwan, 9-14 May 2005.
  55. Guo, L., G. A. Lehmacher, and E. Kudeki, Jicamarca radar data analysis and comparison with GSWM for tidal wind components, CEDAR Workshop, Santa Fe, NM, June 27 – July 2, 2004.
  56. Lehmacher, G., and S. Bishop, Balloon Experiments at Clemson: To the Stratosphere and Back, American Meteorological Society, Upstate Chapter, Greenville, SC, April, 15, 2004 (invited)
  57. Lehmacher, G., E. Kudeki, and M. Sarango, High-resolution observations of mesospheric dynamics with the 50-MHz Jicamarca radar, CEDAR Workshop, Longmont, CO, June 16-20, 2003.
  58. Lehmacher, G., E. Kudeki, and M. Sarango, Waves and instabilities in recent mesospheric observations at Jicamarca, MST 10th International Workshop, Piura, Peru, May 13-20, 2003.
  59. Kudeki, E., G. Lehmacher, and M. Sarango, High resolution backscatter probing of the MST region at Jicamarca, ibid.
  60. Lehmacher, G. and E. Kudeki, Observation of braided structures and wind shears in the tropical mesosphere, EGS/AGU Meeting, Nice, France, April 6-10, 2003.
  61. Lehmacher, G., and E. Kudeki, Variability of equatorial mesospheric echoes and winds, COSPAR XXXIV, Houston, Texas, Oct 10-19, 2002.
  62. Lehmacher, G., First Evaluation of new undergraduate space research projects, COSPAR XXXVI, Houston, Texas, Oct 10-19, 2002.
  63. Lehmacher, G., Measurements of layers in the equatorial mesosphere, 40th Anniversary Workshop, Jicamarca Radar Observatory, Peru, May 21, 2001 (invited).
  64. Lehmacher, G., J. D. Mitchell, C. L. Croskey, and R. A. Goldberg, Rocket observations of low latitude mesospheric layers, Layered Phenomena in the Mesopause Region Workshop, Monterey, California, October 10-12, 2001.
  65. Lehmacher, G. A., J. Oberheide, R. Roble, and M. Hagan, Stratospheric-mesospheric coupling in early northern winter: TIME-GCM simulation and CRISTA observations in November 1994, AGU Fall Meeting, San Francisco, California, 15-19 Dec 2000, Eos, 81(48), 2000.
  66. Atkerson, A., G. Lehmacher, and C. McGruder, A student balloon project on the road to search for extrasolar planets by observing lunar occultations, 2nd National Student Conference, National Alliance of NASA University Research Centers, Nashville, Tennessee, 7-10 April 2000.
  67. Lehmacher, G., D. Offermann, J. Oberheide, and P. Preusse, Mapping of planetary wave breaking from the stratosphere up to the mesosphere observed by CRISTA, AGU Fall Meeting, San Francisco, California, 13-17 December 1999.
  68. Lehmacher, G. A., P. Preusse, J. Oberheide, and D. Offermann,Large scale mesospheric dynamics observed in CRISTA temperature and trace gas data, AGU Chapman Conference, Atmospheric science across the stratopause, Annapolis, Maryland, 19-22 April 1999.
  69. Lehmacher, G., D. Offermann, and M. Bittner, The CRISTA/MAHRSI campaign: validation of temperature and ozone measurements with rocket and balloon instruments, Proc. 13th ESA Symp. on Rocket and Balloon Programmes and Related Research, Öland, Sweden, 26-29 May 1997.
  70. Lehmacher, G., M. Riese, M. Jarisch, P. Preusse, M. Ern, R. Spang, K.-U. Grossmann, and D. Offermann, CRISTA mission results: global view of small scale dynamics and trace gas distributions in the middle atmosphere, A31F-08, AGU Fall Meeting, San Francisco, California, December 1996, Eos, Trans., 77(46), 1996.
  71. von Zahn, U., D. M. Hunten, and G. Lehmacher, The Jovian He/H ratio as measured by the Galileo HAD experiment, P72B-03, ibid.
  72. Lehmacher, G. A., R. A. Goldberg, J. D. Mitchell, C. L. Croskey, and M. Friedrich, Plasma density measurements in the equatorial D and E region during MALTED, AGU Fall Meeting, San Francisco, California, 11-15 December 1995.
  73. Goldberg, R. A., G. A. Lehmacher, et al., Dayime and nighttime plasma density measurements of the electrojet region during the MALTED/Guara campaign in Brazil, ibid.
  74. Lehmacher, G., R. A. Goldberg, R. F. Pfaff, J. D. Mitchell, C. L. Croskey, C. Bas, W. E. Swartz, C. M. Alcala, Electron density irregularities in the equatorial electrojet region during MALTED: comparison of rocket and vhf radar observations, IUGG XXI General Assembly, Boulder, Colorado, July 1995.
  75. Croskey, C. L., G. A..Lehmacher et al., Equatorial electron density structure during the MALTED program, ibid.
  76. Goldberg, R. A., M. Friedrich, G. A. Lehmacher, F. J. Schmidlin, C. L. Croskey, J. D. Mitchell, D. C. Fritts, and W. E. Swartz, MALTED: a rocket/radar study of dynamics and turbulence in the equatorial mesopause region, Proc. 12th ESA Symp. on Rocket and Balloon Programmes and Related Research, Lillehammar, Norway, 29 May - 1 June 1995, ESA SP-370, 113-118, 1995.
  77. Lehmacher, G., R. A. Goldberg, J. D. Mitchell, and F J. Schmidlin, In situ measurements of turbulence and electron density in the equatorial mesosphere during MALTED, IX Internat. Symp. on Equatorial Aeronomy, Bali, Indonesia, 1995.
  78. Friedrich M., G. Lehmacher et al.; Rocket borne wave propagation experiments at the equator, ibid.
  79. Goldberg R. A., G. Lehmacher et al., The MALTED rocket/radar study, ibid.
  80. Lehmacher; G., How good are reference atmospheres at the polar mesopause? Recent rocket results evaluated, AGU Fall Meeting, San Francisco, California, Dec 1994.
  81. Goldberg R. A., G. Lehmacher et al., The MALTED rocket/radar study of equatorial dynamics in the mesopause region, ibid.
  82. Lehmacher, G., R. A. Goldberg, and F.-J. Lübken, Correlation of small scale density fluctuations and temperature gradients in the mesosphere, AGU Spring Meeting, Baltimore, Maryland, 26 May 1994.
  83. Lehmacher, G., R. F. Pfaff, R. A. Goldberg, and F.-J. Lübken, Comparison of spectral characteristics of plasma and neutral fluctuations obtained during the NLC-91 campaign, AGU Fall Meeting, San Francisco, California, 6 - 10 December 1993.
  84. Lehmacher, G., F.-J. Lübken, U. von Zahn, T. Blix, and E. Thrane, Werden PMSE Radarechos an der polaren Sommermesopause durch starke Turbulenz erzeugt?, Frühjahrstagung der Arbeitsgemeinschaft für Extraterrestrische Physik der DPG, Greifswald, 8 - 11 March 1993.
  85. Lehmacher, G., F. Föhner, F.-J. Lübken, T. A. Blix, and E. V. Thrane, In situ-Messungen von Neutral- und Ionendichtefluktuationen an der polaren Sommermesopause, Frühjahrstagung der Arbeitsgemeinschaft Extraterrestrische Physik der DPG, Berlin, 30 March - 2 April 1992
  86. Lehmacher, G., W. Hillert, and F.-J. Lübken, Total number densities in the upper mesosphere as measured by rocketborne ionization gauges, 10th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Mandelieu-Cannes, France, 27-31 May 1991.
  87. Lehmacher, G., A. Bacher, F.-J. Lübken, W. Hillert, and U. von Zahn Simultaneous observation of a gravity wave in the mesosphere by rocket and lidar techniques, XVI General Assembly of the European Geophysical Society, Wiesbaden, 22-26 April 1991.

Proceedings

  1. Lehmacher, Gerald A., Miguel F. Larsen, Sven Bilén, Charles L. Croskey, John D. Mitchell, Franz-Josef Lübken, Markus Rapp, Richard Collins, “Where is the Turbopause?” rocket campaign: overview and first results Proc. 19th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Bad Reichenhall, Germany, 7-11 June 2009, ESA SP-671, 2009.
  2. Lehmacher, G. A., C. L. Croskey, J.D. Mitchell, M. Friedrich, K. Torkar, F.-J. Lübken, M. Rapp, and E. Kudeki, Layers in the Equatorial Mesosphere, Motions and Aerosol: rocket and radar measurements during EQUIS II, Proc. 17th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Sandefjord, Norway, 30 May – 2 June 2005, ESA SP-590, 167-172, 2005.
  3. Hopper, L. and G. Lehmacher, Analysis of a stationary planetary wave in the middle atmosphere using satellite and model data, Proc. NCUR 2001, March 15-17, 2001, Lexington, Kentucky, 2001.
  4. Atkerson, A., G. Lehmacher, and C. McGruder, Detection of faint stellar companions by observation of stationary lunar occultations, , Proc. NCUR 2001, March 15-17, 2001, Lexington, Kentucky, 2001.
  5. Riese, M., R. Spang, J. Oberheide, G. Lehmacher, P. Preusse, D. Offermann, Some results of the Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) experiment, Proc. 14th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Potsdam, Germany, 31 May - 3 June 1999, ESA SP-437, 1999.
  6. Puentedura, O., M. Gil, M. Yela, G. Lehmacher, E. Cuevas, and D. Jadhav, NO2 profiles during the CRISTA-2 experiment (August 1997) at subtropical regions, Proc. Europto Remote Sensing Meeting, Barcelona, Spain, 21-25 Sept 1998.
  7. Friedrich, M., K. M. Torkar, R. A. Goldberg, J. D. Mitchell, C. L. Croskey, and G. Lehmacher, Comparison of plasma probes in the lower ionosphere, Proc. 13th ESA Symp. on Rocket and Balloon Programmes and Related Research, Öland, Sweden, 26-29 May 1997, ESA SP-397, 381-386, 1997.
  8. Goldberg, R. A., M. Friedrich, G. A. Lehmacher, F. J. Schmidlin, C. L. Croskey, J. D. Mitchell, D. C. Fritts, W. E. Swartz, MALTED: a rocket/radar study of dynamics and turbulence in the equatorial mesopause region, Proc. 12th ESA Symp. on Rocket and Balloon Programmes and Related Research, Lillehammar, Norway, 29 May - 1 June 1995, ESA SP-370, 113-118, 1995.
  9. Lübken, F.-J., G. Lehmacher, U. von Zahn, T. Blix, U.-P. Hoppe, and E. Thrane, Neutral and plasma density fluctuations observed within PMSE layers, Proc. 11th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Montreux, Switzerland, ESA SP-, 1993.
  10. F.-J. Lübken, W. Hillert, G. Lehmacher and U. von Zahn, Neutral air turbulence during DYANA: first results, 28th COSPAR Scientific Assembly, Den Haag, Netherlands, 1990, Adv. Space Res. 12(10), 135, 1992.