Mean circulations of boundary-layer rolls in lake-effect snow storms
- David A. R. Kristovich
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An observational study of the roll-average flow fields of boundary-layer rolls is presented. Data used for this purpose were collected by dual-Doppler radar and aircraft measurements taken over southern Lake Michigan during the 1983/1984 field operations of Project Lake Snow. The roll circulations agreed well with findings of past observational, numerical and theoretical studies, with cross-roll components roughly 10% of the convective internal boundary layer (CIBL)-mean wind speeds and weaker vertical components. Along-roll winds were systematically stronger in the rollupdraft regions than in the roll-downdraft regions, probably due to distortion of the along-roll wind profile by the rolls. Comparison of observed wind profiles to those required by roll formation mechanisms found by past numerical and theoretical studies suggested that the observed rolls were formed by the along-roll wind shear (Asai, 1970) or wind shear curvature (Kuettner, 1971) in the lowest 0.2Z i, whereZ i is the height of the top of the CIBL.
Angell, J. K., Pack O. M. and Dickson, C. R.: 1968, ‘A Lagrangian Study of Helical Circulations in the Planetary Boundary Layer’,J. Atmos. Sci. 25, 707–717.
Asai, T.: 1970, ‘Stability of a Plane Parallel Flow with Variable Vertical Shear and Unstable Stratification’,J. Meteorol. Soc. Japan. 48, 129–138.
Asai, T.: 1972, ‘Thermal Instability of a Shear Flow Turning the Direction with Height’,J. Meteorol. Soc. Japan 50, 525–532.
Atlas, D., Walker, B., Chou, S.-H. and Sheu, P. J.: 1986, ‘The Structure of the Unstable Marine Boundary Layer Viewed by Lidar and Aircraft Observations’,J. Atmos. Sci. 43, 1301–1318.
Becker, P.: 1987, ‘Three-Dimensional Investigations of Roll Vortices: A Case Study’,Beitr. Phys. Atmosph. 60, 170–179.
Braham, R. R., Jr.: 1986, ‘Cloud and Motion Fields in Open-Cell Convection over Lake Michigan’, Preprints, 23rd Conference on Radar Meteorology and Conference on Cloud Physics, Snowmass, CO, September 1986,American Meteorological Society, Boston, MA, JP202-JP205.
Braham, R. R., Jr. and Kelly, R. D.: 1982, ‘Lake Effect Snow Storms over Lake Michigan’, in E. M. Agee and T. Asai (eds.),Cloud Dynamics. Boston: D. Reidel, 432 pp.
Brown, R. A.: 1970, ‘A Secondary Flow Model for the Planetary Boundary Layer’,J. Atmos. Sci. 27, 742–757.
Brown, R. A.: 1972, ‘On the Inflection Point Instability of a Stratified Ekman Boundary Layer’,J. Atmos. Sci. 29, 850–859.
Brown, R. A.: 1980, ‘Longitudinal Instabilities and Secondary Flows in the Planetary Boundary Layer: A Review’,Rev. Geophys. Space Phys. 18, 683–697.
Brümmer, B.: 1985, ‘Structure, Dynamics and Energetics of Boundary Layer Rolls from KonTur Aircraft Observations’,Beitr. Phys. Atmosph. 58, 237–254.
Chang, S. S. and Braham, R. R., Jr.: 1991, ‘Observational Study of a Convective Internal Boundary Layer over Lake Michigan’,J. Atmos. Sci. 48, 2265–2279.
Chlond, A.: 1987, ‘A Numerical Study of Horizontal Roll Vortices in Neutral and Unstable Atmospheric Boundary Layers’,Beitr. Phys. Atmosph. 60, 144–169.
Chlond, A.: 1988, ‘Numerical and Analytical Studies of Diabatic Heating Effect upon Flatness of Boundary Layer Rolls’,Beitr. Phys. Atmosph. 61, 312–329.
Christian, T. M. and Wakimoto, R. M.: 1989, ‘The Relationship Between Radar Reflectivities and Clouds Associated With Horizontal Roll Convection on 8 August 1982’,Monthly Weather Rev. 117, 1520–1544.
Clark, T. L., Hauf, T. and Kuettner, J. P.: 1986, ‘Convectively Forced Internal Gravity Waves: Results from Two-Dimensional Numerical Experiments’,Quart. J. Roy. Meteorol. Soc. 112, 899–925.
Doviak, R. J. and Berger M.: 1980, ‘Turbulence and Waves in the Optically Clear Planetary Boundary Layer Resolved by Dual-Doppler Radars’,Radio Sci. 15, 297–317.
Ferrare, R. A., Schols, J. L., Eloranta, E. W. and Coulter, R.: 1991, ‘Lidar Observations of Banded Convection During BLX83’,J. Appl. Meteorol. 30, 312–326.
Gedzelman, S. D.: 1989, ‘Cloud Classification Before Luke Howard’,Bull. Amer. Meteorol. Soc. 70, 381–395.
Grossman, R. L.: 1982, ‘An Analysis of Vertical Velocity Spectra Obtained in the BOMEX Fair-Weather, Trade-Wind Boundary Layer’,Boundary-Layer Meteorol. 23, 323–357.
Hauf, T. and Clark, T. L.: 1989, ‘Three-Dimensional Numerical Experiments on Convectively Forced Internal Gravity Waves’,Quart. J. Roy Meteorol. Soc. 115, 309–333.
Holroyd, E. W., III: 1971, ‘Lake-Effect Cloud Bands as Seen from Weather Satellites’,J. Atmos Sci. 28, 1165–1170.
Huang, X.-Y.: 1988, ‘On the Hysteretic Behaviour of Moist Convection’,Tellus 40A, 237–247.
Huang, X.-Y. and Källen, E.: 1986, ‘A Low-Order Model for Moist Convection’,Tellus 38A, 381–396.
Kelly, R. D.: 1984, ‘Horizontal Roll and Boundary-Layer Interrelationships Observed Over Lake Michigan’,J. Atmos. Sci. 41, 1816–1826.
Konrad, T. G.: 1970, ‘The Dynamics of the Convective Process in Clear Air’,J. Atmos Sci. 27, 1138–1147.
Kristovich, D. A. R.: 1988,Reflectivity Profiles and Core Characteristics Along Horizontal Roll Convection in Lake-Effect Snow Storms M.S. Thesis, The University of Chicago, 78 pp.
Kristovich, D. A. R.: 1991,The Three-dimensional Flow Fields of Boundary Layer Rolls Observed During Lake-Effect Snow Storms. Ph. D. Thesis, The University of Chicago, 182 pp.
Kropfli, R. A. and Kohn, N. M.: 1978, ‘Persistent Horizontal Rolls in the Urban Mixing Layer as Revealed by Dual-Doppler Radar’,J. Appl. Meteorol. 17, 669–676.
Kuettner, J. P.: 1959, ‘The Band Structure of the Atmosphere’,Fellus 11, 267–294.
Kuettner, J. P.: 1971, ‘Cloud Bands in the Earth's Atmosphere — Observations and Theory’Tellus 23, 404–425.
Kuettner J. P., Hildebrand, P. A. and Clark, T. L.: 1987, ‘Convection Waves: Observations of Gravity Wave Systems Over Convectively Active Boundary Layers’,Quart. J. Roy. Meteorol. Soc. 113, 445–467.
LeMone, M. A.: 1973, ‘The Structure and Dynamics of Horizontal Roll in the Planetary Boundary Layer’,J. Atmos. Sci. 30, 1077–1091.
LeMone, M. A.: 1976, ‘Modulation of Turbulence Energy by Longitudinal Rolls in an Unstable Planetary Boundary Layer’,J. Atmos Sci. 33, 1308–1320.
Muira, Y.: 1986, ‘Aspect Ratios of Longitudinal Rolls and Convection Cells Observed During Cold Air Outbreaks’,J. Atmos. Sci. 43, 26–39.
Panofsky, H. A. and Dutton, J. A.: 1984,Atmospheric Turbulence: Models and Methods for Engineering Applications: New York: John Wiley and Sons, 397 pp.
Rabin, R. M., Doviak, R. J. and Sundara-Kajan, A.: 1982, ‘Doppler Radar Observations of Momentum Flux in a Cloudless Convective Layer with Rolls’,J. Atmos. Sci. 39, 851–863.
Reinking, R. F., Doviak, R. J. and Gilmer, R. O.: 1981, ‘Clear-Air Roll Vortices and Turbulent Motions as Detected with an Airborne Gust Probe and Dual-Doppler Radar’,J. Appl. Meteorol. 20, 678–685.
Sheu, P.-J., Agee, E. M. and Tribbia, J. J.: 1980, ‘A Numerical Study of Physical Processes Affecting Convective Cellular Geometry’,J. Meteorol. Soc. Japan. 58, 489–498.
Streten, N. A.: 1975, ‘Cloud Cell Size and Pattern Evolution in Arctic Air Advection Over the North Pacific’,Arch. Meteorol. Geophys. Bioklim. Series A24, 213–228.
Sykes, R. I. and Henn, D. S.: 1989, ‘Large-Eddy Simulations of Turbulent Sheared Convection’,J. Atmos. Sci. 46, 1106–1118.
Sykes, R. I., Lewellen, W. S. and Henn, D. S.: 1988, ‘A Numerical Study of the Development of Cloud Street Spacing’,J. Atmos. Sci. 45, 2556–2569.
Sykes, R. I., Lewellen, W. S. and Henn, D. S.: 1990, ‘Numerical Simulations of the Boundary-Layer Eddy Structure During the Cold-Air Outbreak of GALE IOP-2’,Monthly Weather Rev. 118, 363–374.
van Delden, A.: 1985, ‘On the Preferred Mode of Cumulus Convection’,Beitr. Phys. Atmosph. 58, 202–219.
Weston, K. J.: 1980, ‘An Observational Study of Convective Streets’,Tellus 32, 433–438.
Wipperman, F. K., Etling, D. and Kirstein, H. J.: 1978, ‘On the Instability of a Planetary Boundary Layer with Rossby Number Similarity. Part II: The Combined Effect of Inflection Point Instability and Convective Instability’,Boundary-Layer Meteorol. 15, 301–321.
Woodcock, A. H.: 1940, ‘Convection and Soaring over the Open Sea’,J. Marine Research,3, 248–253.
- Mean circulations of boundary-layer rolls in lake-effect snow storms
Volume 63, Issue 3 , pp 293-315
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- 1. Cloud Physics Laboratory, The University of Chicago, 5734S.Ellis Avenue, 60637, Chicago, IL, U.S.A.