Dr. NGAN Keith (顏文基)
Research Output
- 2013
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. 1875-1887Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 40On 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, 1991Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 1- 2012
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. 1366-1378Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 17- 2011
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 Reviews › RGC 22 - Publication in policy or professional journal
Scopus citations: 8- 2009
Predictability of rotating stratified turbulence
Ngan, K., Bartello, P. & Straub, D. N., 2009, In: Journal of the Atmospheric Sciences. 66, 5, p. 1384-1400Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 12- 2008
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. 766-791Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 9- 2005
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 Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 15- 2004
Three-dimensionalization of freely-decaying two-dimensional turbulence
Ngan, K., Straub, D. N. & Bartello, P., Aug 2004, In: Physics of Fluids. 16, 8, p. 2918-2932Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 13- 2000
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 Reviews › RGC 22 - Publication in policy or professional journal
Scopus citations: 66Spatially correlated and inhomogeneous random advection
Ngan, K. & Pierrehumbert, R. T., Apr 2000, In: Physics of Fluids. 12, 4, p. 822-834Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 9- 1999
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. 4134-4152Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 36A 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. 4153-4166Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 21- 1997
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. 24001-24004Research output: Journal Publications and Reviews › RGC 62 - Review of books or of software (or similar publications/items) › peer-review
Scopus citations: 11Chaotic mixing and transport in Rossby-wave critical layers
Ngan, K. & Shepherd, T. G., 10 Mar 1997, In: Journal of Fluid Mechanics. 334, p. 315-351Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 51- 1996
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. 896-913Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Scopus citations: 17