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Volume 51 Supplement 7-8

Special Issue: Dynamics and Structure of the Mesopause Region (DYSMER)

Observations in the polar middle atmosphere by rocket-borne Rayleigh lidar: First results


We present a new rocket instrument which measures total atmospheric density with great precision and resolution by Rayleigh scattering of infrared light. Comparison with a ground-based lidar shows: (a) both instruments measure the same physical parameters, even though they have different integration times and volumes. (b) The observed density structures change little over the course of an hour and the horizontal distance of 14 km. The rocket instrument has a basic vertical resolution of approximately 8 m and a number density precision of 4.2 · 1019 m−3. Above 56 km we integrate over an increasing vertical range, reaching 80 m at 70 km. The measured number density profile shows remarkable alternations between very stable layering and metastable layering (adiabatic lapse rate) in the atmosphere between 52 km and 71 km. Comparison with the hodograph of the horizontal wind profile measured by a falling sphere 29 minutes later shows that the metastable height regions coincide with height regions where the hodograph deviates from an ideal spiral. The observation is tentatively interpreted as a gravity wave that is saturating (or encountering a critical level) in these height regions. The comparison of the fine-scale neutral number density observations with measurements of ion density by electrostatic skin probes on board the same vehicle shows a number of ion density enhancements in the stably-layered height regions. With one exception out of six cases, these enhancements occur where the vertical gradient of the meridional wind would collect positive ions as in sporadic E layers. This may be the first observation of such ion density enhancements in the height region 55 to 70 km.


  • Blix, T. A., E. V. Thrane, and Ø. Andreassen, In-situ measurements of the fine-scale structure and turbulence in the mesosphere and lower thermosphere by means of electrostatic positive ion probes, J. Geophys. Res., 95(D5), 5533–5548, 1990.

    Article  Google Scholar 

  • Chang, J. L. and S. K. Avery, Observations of the diurnal tide in the mesosphere and lower thermosphere over Christmas Island, J. Geophys. Res., 102(D2), 1895–1907, 1997.

    Article  Google Scholar 

  • Conley, T. D., Mesospheric positive ion concentrations, mobilities, and loss rates obtained from rocket-borne Gerdien condenser measurements, Radio Sci., 9(6), 575–592, 1974.

    Article  Google Scholar 

  • Eriksen, T., U.-P. Hoppe, E. V. Thrane, and T. A. Blix, Rocketborne Rayleigh lidar for in-situ measurements of neutral atmospheric density, Appl. Opt., 38(12), 2605–2613, 1999.

    Article  Google Scholar 

  • Fiedler, J. and G. von Cossart, Automated Lidar Transmitter for Multi-Parameter Investigations within the Arctic Atmosphere, IEEE Trans. Geosci. Remote Sensing, 37, 748–755, 1999.

    Article  Google Scholar 

  • Fiedler, J., G. von Cossart, F. Hübner, H. Mehrtens, U. von Zahn, K.-H. Fricke, G. Nelke, A. Hauchecorne, F. Fierli, and D. Rees, Status of the ALOMAR Rayleigh/Mie/Raman Lidar, in Proc. 13th ESA Symposium on European Rocket and Balloon Programmes & Related Research (Öland/Sweden), ESA SP-397, pp. 105–110, 1997.

  • Fritts, D. C. and E. V. Thrane, Computation of the ion/neutral density ratio in the presence of wave and chemical effects, J. Atmos. Terr. Phys., 52(10/11), 827–834, 1990.

    Article  Google Scholar 

  • Fritts, D. C., D. M. Riggin, B. B. Balsley, and R. G. Stockwell, Recent results with an MF radar at McMurdo, Antarctica: Characteristics and variability of motions near 12-hour period in the mesosphere, Geophys. Res. Lett., 25(3), 297–300, 1998.

    Article  Google Scholar 

  • Giebeler, J., F. J. Lübken, and M. Nägele, CONE—A new sensor for in-situ observations of neutral and plasma density fluctuations, in Proc. 11th ESA Symposium on European Rocket and Balloon Programmes & Related Research (Montreux, Switzerland), ESA SP-355, pp. 311–318, 1993.

  • Hoppe, U.-P. and D. C. Fritts, High-resolution measurements of vertical velocity with the European incoherent scatter VHF radar, 1. Motion field characteristics and measurement biases, J. Geophys. Res., 100(D8), 16,813–16,825, 1995.

    Article  Google Scholar 

  • Lübken, F.-J. and U. von Zahn, Thermal structure of the mesopause region at polar latitudes, J. Geophys. Res., 96(D11), 20,841–20,857, 1991.

    Article  Google Scholar 

  • Lübken, F.-J., W. Hillert, G. Lehmacher, U. von Zahn, M. Bittner, D. Offermann, F. Schmidlin, A. Hauchecorne, M. Mourier, and P. Czechowsky, Intercomparison of density and temperature profiles obtained by lidar, ionisation gauges, falling spheres, datasondes and radiosondes during the DYANA campaign, J. Atmos. Terr. Phys., 56(13/14), 1969–1984, 1994.

    Article  Google Scholar 

  • Manson, A. H. and C. E. Meek, Small-scale features in the middle atmosphere wind field at Saskatoon, Canada (52°N, 107°W): An analysis of MF radar data with rocket comparisons, J. Atmos. Sci., 44, 3661–3672, 1987.

    Article  Google Scholar 

  • Nakamura, T., T. Tsuda, and S. Fukao, Mean winds at 60–90 km observed with the MU radar (35°N), J. Atmos. Terr. Phys., 58(6), 655–660, 1996.

    Article  Google Scholar 

  • Rees, D., U. von Zahn, G. von Cossart, G. Nelke, K. H. Fricke, and N. D. Lloyd, The Doppler Wind and Temperature System of the ALOMAR Lidar, in Proc. 13thESA Symposium on European Rocket and Balloon Programmes & Related Research (Öland/Sweden), ESA SP-397, pp. 121–128, 1997.

  • Schmidlin, F. J., The inflatable sphere: A technique for the accurate measurement of the middle atmosphere temperatures, J. Geophys. Res., 96, 22673–22682, 1991.

    Article  Google Scholar 

  • Taylor, M. J. and K. Henriksen, Gravity wave studies at polar latitudes, in Electromagnetic Coupling in the Polar Clefts and Caps, edited by P. E. Sandholt and A. Egeland, pp. 421–434, Kluwer Academic Publ., Dordrecht, the Netherlands, 1989.

    Chapter  Google Scholar 

  • Thrane, E. V. and U. von Zahn, ALOMAR—A new facility for middle atmosphere research at Arctic latitudes, J. Geomag. Geoelectr., 47, 921–928, 1995.

    Article  Google Scholar 

  • 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(13/14), 1797–1808, 1994.

    Article  Google Scholar 

  • Torkar, K. M. and M. Friedrich, Empirical electron combination coefficients in the D and E-region, J. Atmos. Terr. Phys., 50(8), 749–761, 1988.

    Article  Google Scholar 

  • Torkar, K. M., M. Friedrich, and W. Riedler, Collection of D- and E-region plasma densities processed at the Technical University Graz, Report INW 8211, Tech Univ Graz, 1981.

  • Vincent, R. A., S. Kovalam, D. C. Fritts, and J. R. Isler, Long-term MF radar observations of solar tides in the low-latitude mesosphere: Interannual variability and comparisons with the GSWM, J. Geophys. Res., 103(D8), 8667–8683, 1998.

    Article  Google Scholar 

  • von Zahn, U., Achievements of ALOMAR, in Proc. 13th ESA Symposium on European Rocket and Balloon Programmes & Related Research (Öland/Sweden), ESA SP-397, pp. 141–159, 1997.

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Correspondence to Ulf-Peter Hoppe.

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Hoppe, UP., Eriksen, T., Thrane, E.V. et al. Observations in the polar middle atmosphere by rocket-borne Rayleigh lidar: First results. Earth Planet Sp 51, 815–824 (1999).

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  • Lidar
  • Zonal Wind
  • Guard Ring
  • Height Region
  • Height Resolution