Abstract
This paper presents meteorological measurements made during the antarctic summer period, on two 9 m and 3 m towers, on the rocky and ice shelf terrains of the Indian antarctic stations Maitri and Dakshin Gangotri, respectively. The measurements of fluctuations in temperature and wind speed made with relatively lesser precision instrumentation pertain to smaller wave numbers ~10-2 m-1 appropriate to outer scale L 0 of the atmospheric turbulence spectrum. Autocorrelation analysis of the fluctuations in temperature and wind speed has been performed. A new autoregressive scheme has been developed to represent the computed autocorrelation functions by a Yule statistical model, and to estimate the correlation period T 0 of the turbulent medium. Height profiles of outer scale L 0 of turbulence may be given in terms of T 0 and mean wind speed u. Further, the similarity theory of Monin-Obukhov has been used to compute height profiles of temperature structure parameter C T 2. At Maitri, values of L 0 and C T 2 are higher between 03–22 h local time than between 22–03 h. Values of L 0 and C T 2 are smaller over the ice shelf terrain of the Dakshin Gangotri station, compared to those over the rocky terrain of the Maitri station.
Similar content being viewed by others
References
Cuijpers, J. W. M. and Kohsiek, W.: 1989, ‘Vertical Profiles of the Structure Parameter of Temperature in the Stable, Nocturnal Boundary Layer’, Boundary-Layer Meteorol. 47, 111–129.
Jones, R. H.: 1975, ‘Estimating the Variance of Time-Averages’, J. Appl. Meteorol. 14, 159–163.
Kaimal, J. C., Wyngaard, J. C., Izumi, Y., and Coté, O. R.: 1972, ‘Spectral Characteristics of Surface- Layer Turbulence’, Q. J. R. Meteorol. Soc. 98, 563–589.
Kendall, M. G. and Stuart, A.: 1966, The Advanced Theory of Statistics, Vol. 3, Charles Griffin and Co., Ltd., London, pp. 418–419.
King, J. C.: 1990, ‘Some Measurements of Turbulence over an Antarctic Ice Shelf’, Q. J. R. Meteorol. Soc. 116, 379–400.
Lettau, H. H.: 1979, ‘Wind and Temperature Profile Prediction for Diabatic Surface Layers Including Strong Inversion Cases’, Boundary-Layer Meteorol. 17, 443–464.
Panofsky, H. A. and Dutton, J. A.: 1984, Atmospheric Turbulence, John Wiley & Sons, pp. 182–186 and 375–379.
Pasricha, P. K., Jain, A. R., and Reddy, B. M.: 1989, ‘On the Optimum Smoothing of MST Radar Signals, Handbook for MAP’, Vol. 28, August 1989, Eds. C. H. Liu and Belva Edwards, SCOSTEP Secretariat, University of Illinois, Illinois, USA.
Tatarskii, V. I.: 1971, The Effects of the Turbulent Artmosphere on Wave Propaation, National Technical Information Service, Springfield, USA, Ch. 1.
Wyngaard, J. C., Izumi, Y., and Collins, S. A., Jr.: 1971, ‘Behavior of Refractive Index-Structure Parameter near the Ground’, J. Op. Soc. Am. 61, 1646–1650.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Pasricha, P.K., Singh, R., Sarkar, S.K. et al. Characteristics of atmospheric turbulence in the surface layer over Antarctica. Boundary-Layer Meteorol 57, 207–217 (1991). https://doi.org/10.1007/BF00120885
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00120885