Field observations of multimode raindrop oscillations by high-speed imaging

Journal of the Atmospheric Sciences

Volumn 63, Issue 10, 2006, Pages 2663-2668

  Testik, F Y ^a,c   Barros, Ana P ^a   Bliven, L F ^b  

^a Duke University   (United States)

^b NASA GODDARD SPACE FLIGHT CENTER   (United States)

^c CLEMSON UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

HARMONIC ANALYSIS; IMAGING TECHNIQUES; OSCILLATIONS;

DROP TERMINAL VELOCITY; DYNAMICAL MICROSTRUCTURE; HIGH-SPEED IMAGING; LATERAL DRIFT; MULTIMODE RAINDROPS; PERIODIC OSCILLATIONS;

RAIN;

HARMONIC ANALYSIS; IMAGING TECHNIQUES; OSCILLATIONS; RAIN;

IMAGING METHOD; OBSERVATIONAL METHOD; OSCILLATION; RAINDROP; RAINFALL;

EID: 33750597287     PISSN: 00224928     EISSN: None     Source Type: Journal    
DOI: 10.1175/JAS3773.1     Document Type: Article

References (29)

1. Andsager, K., K. V. Beard, and N. F. Laird, 1999: Laboratory measurements of axis ratios for large raindrops. J. Atmos. Sci., 56, 2673-2683.
2. Atlas, D., and C. W. Ulbrich, 1990: Early foundations of the measurement of rainfall by radar. Radar in Meteorology, D. Atlas, Ed., Amer. Meteor. Soc., 86-97.
3. Beard, K. V., and D. B. Johnson, 1984: Raindrop axial and back-scatter ratios using a collisional probability model. Geophys. Res. Lett., 11, 65-68.
4. Beard, K. V., and C. Chuang, 1987: A new model for the equilibrium shape of raindrops. J. Atmos. Sci., 44, 1509-1525.
5. Beard, K. V., and R. J. Kubesh, 1991: Laboratory measurements of small raindrop distortion. Part II: Oscillation frequencies and modes. J. Atmos. Sci., 48, 2245-2264.
6. Beard, K. V., and A. Tokay, 1991: A field study of small raindrop oscillations. Geophys. Res. Lett., 18, 2257-2260.
7. Beard, K. V., H. T. Ochs III, and R. J. Kubesh, 1989: Natural oscillations of small raindrops. Nature, 342, 408-410.
8. Beard, K. V., R. J. Kubesh, and H. T. Ochs III, 1991: Laboratory measurements of small raindrop distortion. Part I: Axis ratios and fall behavior. J. Atmos. Sci., 48, 698-710.
9. Becker, E., W. J. Hiller, and T. A. Kowalewski, 1991: Experimental and theoretical investigation of large amplitude oscillations of liquid droplets. J. Fluid Mech., 231, 189-210.
10. Bringi, V. N., and V. Chandrasekar, 2001: Polarimetric Doppler Weather Radar. Cambridge University Press, 636 pp.
11. Bringi, V. N., V. Chandrasekar, and R. R. Xiao, 1998: Raindrop axis ratios and size distributions in Florida rainshafts: An assessment of multiparameter radar algorithms. IEEE Trans. Geosci. Remote Sens., 36,703-715.
12. Chandrasekar, V., W. A. Cooper, and V. N. Bringi, 1988: Axis ratios and oscillations of raindrops. J. Atmos. Sci., 45, 1323-1333.
13. Gunn, R., 1949: Mechanical resonance in freely falling raindrops. J. Geophys. Res., 54, 383-385.
14. Johnson, D. B., and K. V. Beard, 1984: Oscillation energies of colliding raindrops. J. Atmos. Sci., 41, 1235-1241.
15. Jones, B. K., J. R. Saylor, and L. F. Bliven, 2003: Single-camera method to determine the optical axis position of ellipsoidal drops. Appl. Opt., 42, 972-978.
16. Jones, D. M. A., 1959: The shape of raindrops. J. Meteor., 16, 504-510.
17. Kubesh, R. J., and K. V. Beard, 1993: Laboratory measurements of spontaneous oscillations for moderate-size raindrops. J. Atmos. Sci., 50, 1089-1098.
18. Lamb, H., 1932: Hydrodynamics. Cambridge University Press, 738 pp.
19. Lhermitte, R., 1990: Attenuation and scattering of millimeter wavelength radiation by clouds and precipitation. J. Atmos. Oceanic Technol., 7, 464-479.
20. Lundgren, T. S., and N. N. Mansour, 1988: Oscillations of drops in zero gravity with weak viscous effects. J. Fluid Mech., 194, 479-510.
21. McDonald, J. E., 1954: The shape and aerodynamics of large raindrops. J. Meteor., 11, 478-494.
22. Musgrove, C., and M. Brook, 1975: Microwave echo fluctuations produced by vibrating water drops. J. Atmos. Sci., 32, 2001-2007.
23. Prosperetti, A., 1980: Normal-mode analysis for the oscillations of a viscous liquid drop in an immiscible liquid. J. Mec., 19, 149-182.
24. Pruppacher, H. R., and K. V. Beard, 1970: A wind tunnel investigation of the internal circulation and shape of water drops falling at terminal velocity in air. Quart. J. Roy. Meteor. Soc., 96, 247-256.
25. Rayleigh, L., 1879: On the capillary phenomena of jets. Proc. Roy. Soc. London, 29, 71-97.
26. Saylor, J. R., and B. K. Jones, 2005: The existence of vortices in the wakes of simulated raindrops. Phys. Fluids, 17, 031706, doi: 10. 1063/ 1.1874192.
27. Thurai, M., and V. N. Bringi, 2005: Drop axis ratios from a 2D video disdrometer. J. Atmos. Oceanic Technol., 22, 966-978.
28. Tokay, A., and K. V. Beard, 1996: A field study of raindrop oscillations. Part I: Observation of size spectra and evaluation of oscillation causes. J. Appl. Meteor., 35, 1671-1687.
29. Tokay, A, R. Chamberlain, and A Schoenhuber, 2000: Laboratory and field measurements of raindrop oscillations. Phys. Chem. Earth, 25B, 867-870.