Dr. NGAN Keith (顏文基)

Research Output

  1. 2013
  2. Improved variational analyses using a nonlinear humidity control variable

    Ingleby, N. B., Lorenc, A. C., Ngan, K., Rawlins, F. & Jackson, D. R., Oct 2013, In: Quarterly Journal of the Royal Meteorological Society. 139, 676, p. 1875-1887

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 40
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  3. On the relationship between stratospheric structure and tropospheric blocking patterns

    Cullen, M. J. P. & Ngan, K., 28 May 2013, In: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 371, 1991

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 1
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  4. 2012
  5. Middle atmosphere predictability in a numerical weather prediction model: Revisiting the inverse error cascade

    Ngan, K. & Eperon, G. E., Jul 2012, In: Quarterly Journal of the Royal Meteorological Society. 138, 666, p. 1366-1378

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 17
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  6. 2011
  7. Scalar decay in a three-dimensional chaotic flow

    Ngan, K. & Vanneste, J., 9 May 2011, In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 83, 5, 56306.

    Research output: Journal Publications and ReviewsRGC 22 - Publication in policy or professional journal

    Scopus citations: 8
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  8. 2009
  9. Predictability of rotating stratified turbulence

    Ngan, K., Bartello, P. & Straub, D. N., 2009, In: Journal of the Atmospheric Sciences. 66, 5, p. 1384-1400

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 12
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  10. 2008
  11. Dissipation of synoptic-scale flow by small-scale turbulence

    Ngan, K., Bartello, P. & Straub, D. N., Mar 2008, In: Journal of the Atmospheric Sciences. 65, 3, p. 766-791

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 9
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  12. 2005
  13. Aspect ratio effects in quasi-two-dimensional turbulence

    Ngan, K., Straub, D. N. & Bartello, P., Dec 2005, In: Physics of Fluids. 17, 12, p. 1-10 125102.

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 15
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  14. 2004
  15. Three-dimensionalization of freely-decaying two-dimensional turbulence

    Ngan, K., Straub, D. N. & Bartello, P., Aug 2004, In: Physics of Fluids. 16, 8, p. 2918-2932

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 13
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  16. 2000
  17. On the nature of large-scale mixing in the stratosphere and mesosphere

    Shepherd, T. G., Koshyk, J. N. & Ngan, K., 27 May 2000, In: Journal of Geophysical Research Atmospheres. 105, D10, p. 12433-12446 2000JD900133.

    Research output: Journal Publications and ReviewsRGC 22 - Publication in policy or professional journal

    Scopus citations: 66
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  18. Spatially correlated and inhomogeneous random advection

    Ngan, K. & Pierrehumbert, R. T., Apr 2000, In: Physics of Fluids. 12, 4, p. 822-834

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 9
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  19. 1999
  20. A closer look at chaotic advection in the stratosphere. part i: geometric structure

    Ngan, K. & Shepherd, T. G., 15 Dec 1999, In: Journal of the Atmospheric Sciences. 56, 24, p. 4134-4152

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 36
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  21. A closer look at chaotic advection in the stratosphere. Part II: Statistical diagnostics

    Ngan, K. & Shepherd, T. G., 15 Dec 1999, In: Journal of the Atmospheric Sciences. 56, 24, p. 4153-4166

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 21
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  22. 1997
  23. Comments on some recent measurements of anomalously steep N2O and O3 tracer spectra in the stratospheric surf zone

    Ngan, K. & Shepherd, T. G., 27 Oct 1997, In: Journal of Geophysical Research Atmospheres. 102, 20, p. 24001-24004

    Research output: Journal Publications and ReviewsRGC 62 - Review of books or of software (or similar publications/items)peer-review

    Scopus citations: 11
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  24. Chaotic mixing and transport in Rossby-wave critical layers

    Ngan, K. & Shepherd, T. G., 10 Mar 1997, In: Journal of Fluid Mechanics. 334, p. 315-351

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 51
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  25. 1996
  26. Elliptical vortices in shear: Hamiltonian moment formulation and Melnikov analysis

    Ngan, K., Meacham, S. & Morrison, P. J., Apr 1996, In: Physics of Fluids. 8, 4, p. 896-913

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Scopus citations: 17
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