A combined wave-number-frequency and time-extended EOF approach for tracking the progress of modes of large-scale organized tropical convection

Quarterly Journal of the Royal Meteorological Society

Volumn 135, Issue 638, 2009, Pages 161-173

  Roundy, Paul E ^a   Schreck III, Carl J ^a  

^a STATE UNIVERSITY OF NEW YORK   (United States)

Author keywords

Convectively coupled equatorial waves; El Ni o Southern Oscillation; Madden Julian oscillation

Indexed keywords

BROKEN DOWN; CONVECTIVELY COUPLED EQUATORIAL WAVES; DATA SETS; DEEP CONVECTION; EASTERLY WAVE; EXTENDED EMPIRICAL ORTHOGONAL FUNCTIONS; FREQUENCY DOMAINS; FREQUENCY SPECTRA; LONG-WAVE RADIATION; LOW-FREQUENCY VARIATIONS; MADDEN-JULIAN OSCILLATION; PRINCIPAL COMPONENT; REAL TIME; ROSSBY-GRAVITY WAVE; TRACK SIGNALS; TROPICAL CONVECTION; WAVE NUMBERS;

FINANCIAL DATA PROCESSING; FOURIER ANALYSIS; FREQUENCY BANDS; GRAVITATIONAL EFFECTS; MICROCOMPUTERS; NICKEL COMPOUNDS; PRINCIPAL COMPONENT ANALYSIS; TIME DOMAIN ANALYSIS; TIME SERIES ANALYSIS; WAVES;

FREQUENCY DOMAIN ANALYSIS;

ALGORITHM; ATMOSPHERIC CONVECTION; EASTERLY WAVE; EL NINO-SOUTHERN OSCILLATION; EQUATORIAL WAVE; GRAVITY WAVE; KELVIN WAVE; MADDEN-JULIAN OSCILLATION; PRINCIPAL COMPONENT ANALYSIS; ROSSBY WAVE; SIGNAL PROCESSING; TIME SERIES ANALYSIS; TRACKING; TROPICAL METEOROLOGY; WAVE SPECTRUM;

EID: 67649432559     PISSN: 00359009     EISSN: None     Source Type: Journal    
DOI: 10.1002/qj.356     Document Type: Article

References (48)

1. Battisti DS. 1988. Dynamics and thermodynamics of a warming event in a coupled tropical atmosphere - ocean model. J. Atmos. Sci. 45: 2889-2919.
2. Bessafi M, Wheeler MC. 2006. Modulation of south Indian Ocean tropical cyclones by the Madden-Julian oscillation and convectively coupled equatorial waves. Mon. Weather Rev. 134: 638-656.
3. Carlson TN. 1969. Synoptic histories of three African disturbances that developed into Atlantic hurricanes. Mon. Weather Rev. 97: 256-276.
4. Frank WM, Roundy PE. 2006. The role of tropical waves in tropical cyclogenesis. Mon. Weather Rev. 134: 2397-2417.
5. Gruber A. 1974. The wavenumber-frequency spectra of satellite-measured brightness in the Tropics. J. Atmos. Sci. 31: 1675-1680.
6. Hendon HH, Liebmann B. 1991. The structure and annual variation of antisymmetric fluctuations of tropical convection and their association with Rossby-gravity waves. J. Atmos. Sci. 48: 2127-2140.
7. Hendon HH, Wheeler MC. 2008. Some space-time spectral analyses of tropical convection and planetary-scale waves. J. Atmos. Sci. 65: 2936-2948.
8. Kessler WS. 2001. EOF representations of the Madden-Julian oscillation and its connection with ENSO. J. Climate 14: 3055-3061.
9. Kiladis GN, Thorncroft CD, Hall NMJ. 2006. Three-dimensional structure and dynamics of African easterly waves. Part I: Observations. J. Atmos. Sci. 63: 2212-2230.
10. Kiladis GN, Wheeler MC, Haertel PT, Straub KH, Roundy PE. 2008. Convectively coupled equatorial waves. Rev. Geophys., DOI: 10.1029/2008RG000266, in press.
11. Kim K-Y, Wu Q. 1999. A comparison study of EOF techniques: Analysis of nonstationary data with periodic statistics. J. Climate 12: 185-199.
12. Liebmann B, Hendon HH. 1990. Synoptic-scale disturbances near the Equator. J. Atmos. Sci. 47: 1463-1479.
13. Liebmann B, Smith CA. 1996. Description of a complete (interpolated) outgoing longwave radiation dataset. Bull. Am. Meteorol. Soc. 77: 1275-1277.
14. Lin J-L, Weickmann KM, Kiladis GN, Mapes BE, Sperber KR, Lin W, Wheeler MC, Schubert SD, Del Genio A, Donner LJ, Emori S, Gueremy J-F, Hourdin F, Rasch PJ, Roeckner E, Scinocco JF. 2006. Tropical intraseasonal variability in 14 IPCC AR4 climate models. Part I: Convective signals. J. Climate 19: 2665-2690.
15. Lindzen RS. 1967. Planetary waves on beta-planes. Mon. Weather Rev. 95: 441-451.
16. Lindzen RS. 1971. Equatorial planetary waves in shear: Part I. J. Atmos. Sci. 28: 609-622.
17. Lindzen RS. 2003. The interaction of waves and convection in the Tropics. J. Atmos. Sci. 60: 3009-3020.
18. Madden RA, Julian PR. 1994. Observations of the 40-50-day tropical oscillation - A review. Mon. Weather Rev. 122: 814-837.
19. Majda AJ, Khouider B, Kiladis GN, Straub KH, Shefter MG. 2004. A model for convectively coupled tropical waves: Nonlinearity, rotation, and comparison with observations. J. Atmos. Sci. 61: 2188-2205.
20. Matsuno T. 1966. Quasi-geostrophic motions in the equatorial area. J. Meteorol. Soc. Jpn 44: 25-43.
21. North GR, Bell TL, Cahalan RF, Moeng FJ. 1982. Sampling errors in the estimation of empirical orthogonal functions. Mon. Weather Rev. 110: 699-706.
22. Penland C, Sardeshmukh PD. 1995. The optimal growth of tropical sea surface temperature anomalies. J. Climate 8: 1999-2024.
23. Reed RJ, Norquist DC, Recker EE. 1977. The structure and properties of African wave disturbances as observed during Phase III of GATE. Mon. Weather Rev. 105: 317-333.
24. Roundy PE. 2008. Analysis of convectively coupled Kelvin waves in the Indian Ocean MJO. J. Atmos. Sci. 65: 1342-1359.
25. Roundy PE, Frank WM. 2004a. A climatology of waves in the equatorial region. J. Atmos. Sci. 61: 2105-2132.
26. Roundy PE, Frank WM. 2004b. Effects of low-frequency wave interactions on intraseasonal oscillations. J. Atmos. Sci. 61: 3025-3040.
27. Roundy PE, Schreck III CJ, Janiga MA. 2008. Contributions of convectively coupled equatorial Rossby waves and Kelvin waves to the real-time multivariate MJO indices. Mon. Weather Rev., DOI: 10.1175/2008MWR2595.1, in press.
28. Takayabu YN. 1994. Large-scale cloud disturbances associated with equatorial waves. Part I: Spectral features of the cloud disturbances. J. Meteorol. Soc. Jpn 72: 433-449.
29. Wallace JM, Chang LA. 1972. On the application of satellite data on cloud brightness to the study of tropical wave disturbances. J. Atmos. Sci. 29: 1400-1403.
30. Wang B, Xie X. 1996. Low-frequency equatorial waves in vertically sheared zonal flow. Part I: Stable waves. J. Atmos. Sci. 53: 449-467.
31. Weare BC. 2003. Composite singular value decomposition analysis of moisture variations associated with the Madden-Julian oscillation. J. Climate 16: 3779-3792.
32. Weickmann KM, Lussky GR, Kutzbach JE. 1985. Intraseasonal (30-60 day) fluctuations of outgoing longwave radiation and 250 mb streamfunction during northern winter. Mon. Weather Rev. 113: 941-961.
33. Weickmann KM, Kiladis GN, Sardeshmukh PD. 1997. The dynamics of intraseasonal atmospheric angular momentum oscillations. J. Atmos. Sci. 54: 1445-1461.
34. Wheeler MC, Hendon HH. 2004. An all-season real-time multivariate MJO index: Development of an index for monitoring and prediction. Mon. Weather Rev. 132: 1917-1932.
35. Wheeler MC, Kiladis GN. 1999. Convectively coupled equatorial waves: Analysis of clouds and temperature in the wavenumber-frequency domain. J. Atmos. Sci. 56: 374-399.
36. Wheeler MC, Weickmann KM. 2001. Real-time monitoring and prediction of modes of coherent synoptic to intraseasonal tropical variability. Mon. Weather Rev. 129: 2677-2694.
37. Wheeler MC, Kiladis GN, Webster PJ. 2000. Large-scale dynamical fields associated with convectively coupled equatorial waves. J. Atmos. Sci. 57: 613-640.
38. Yanai M, Murakami M. 1970. Spectrum analysis of symmetric and antisymmetric equatorial waves. J. Meteorol. Soc. Jpn 48: 331-347.
39. Yang G-Y, Hoskins B, Slingo J. 2003. Convectively coupled equatorial waves: A new methodology for identifying wave structures in observational data. J. Atmos. Sci. 60: 1637-1654.
40. Yang G-Y, Hoskins B, Slingo J. 2007a. Convectively coupled equatorial waves. Part I: Horizontal and vertical structures. J. Atmos. Sci. 64: 3406-3423.
41. Yang G-Y, Hoskins B, Slingo J. 2007b. Convectively coupled equatorial waves. Part II: Propagation characteristics. J. Atmos. Sci. 64: 3424-3437.
42. Yang G-Y, Hoskins B, Slingo J. 2007c. Convectively coupled equatorial waves. Part III: Synthesis structures and their forcing and evolution. J. Atmos. Sci. 64: 3438-3451.
43. Zangvil A. 1975. Temporal and spatial behavior of large-scale disturbances in tropical cloudiness deduced from satellite brightness data. Mon. Weather Rev. 103: 904-920.
44. Zangvil A, Yanai M. 1980. Upper tropospheric waves in the Tropics. Part I: Dynamical analysis in the wavenumber-frequency domain. J. Atmos. Sci. 37: 283-298.
45. Zangvil A, Yanai M. 1981. Upper tropospheric waves in the Tropics. Part II: Association with clouds in the wavenumber-frequency domain. J. Atmos. Sci. 38: 939-953.
46. Zhang C. 2005. The Madden-Julian oscillation. Rev. Geophys. 43: RG2003, DOI:10.1029/2004RG000158.
47. Zhang C, Dong M. 2004. Seasonality in the Madden-Julian oscillation. J. Climate 17: 3169-3180.
48. Zhang C, Hendon HH. 1997. Propagating and standing components of the intraseasonal oscillation in tropical convection. J. Atmos. Sci. 54: 741-752.