AOS Research Staff Profile
Visiting Postdoctoral Research Associate
Address: 217 Sayre Hall
Phone: (609) 258-4183
Email: tdinh at princeton.edu
Mesoscale dynamics and interactions with large-scale processes in the atmosphere
Cirrus clouds and ice microphysics
Water vapor in the atmosphere
Numerical methods and modeling of geophysical fluid dynamics
Some Recent Publications
Dinh, T., S. Fueglistaler, D. R. Durran, and T. Ackerman, 2014: A modeling study of moisture redistribution by thin cirrus clouds, submitted to Atmos. Chem. Phys., doi:10.5194/acpd-14-13301-2014.
Dinh, T. and S. Fueglistaler, 2014: Cirrus, transport, and mixing in the tropical upper troposphere. J. Atmos. Sci., 71(4), 1339‒1352, doi:10.1175/JAS-D-13-0147.1.
Dinh, T. and D. R. Durran, 2012: A hybrid bin scheme to solve the condensation/evaporation equation using a cubic distribution function. Atmos. Chem. Phys., 12(2), 1003‒1011, doi:10.5194/acp-12-1003-2012.
Dinh, T., D. R. Durran, and T. Ackerman, 2010: Maintenance of tropical tropopause layer cirrus. J. Geophys. Res., 115(D02104), doi:10.1029/2009JD012735.
Durran, D. R., T. Dinh, M. Ammerman, and T. Ackerman, 2009: The mesoscale dynamics of thin tropical tropopause cirrus. J. Atmos. Sci., 66(9), 2859‒2873, doi:10.1175/2009JAS3046.1.
Numerical Model Development for Cirrus Clouds
I have developed a bin scheme that resolves the size distribution of ice crystals during nucleation and depositional growth (see Dinh and Durran, 2012). The code is very light and can be used in stand-alone mode, or easily coupled into a cloud resolving model for simulations of cirrus clouds. I am very keen to have other people using the code and/or help developing it. If you are interested please email me.
A Simulation of Cirrus Cloud
The movie here (link to GIF file provided below) illustrates a numerical simulation (see Dinh et al., 2012) of cirrus clouds in the tropical tropopause layer (TTL). The movie shows the evolution of a TTL cirrus in a 2D domain forced by a large-scale equatorial Kelvin wave. Time is shown in days. The thick, black contour marks the cloud boundary. Filled, colored contours show the supersaturation ratios (with respect to ice). The thin black and white contours correspond to negative and positive temperature perturbations of the wave. The profile of water vapor in the domain is changed by the large-scale wave forcing as well as by the cloud dynamics and microphysics.