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Yogesh Sud Physical Scientist yogesh.c.sud@nasa.gov (301) 614-6240 Curriculum Vitae |
Education
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Research Interests
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Professional Activities and Experience
GCM development.
Parameterization of land-surface processes.
Climate studies using observational data and models.
Studies of land-atmosphere interaction on the global circulation and local environment.
Parameterizing precipitation, and rain-evaporation processes.
Developing cloud liquid water.
Background
I have been working on the above mentioned problems for the last 25 years. With several colleagues as co-authors, I have written over 60 refereed articles on various aspects of physical parameterizations that are employed in a Global Climate Model. Currently, I am actively working on reducing model-physics biases caused by some intrinsic simplifications of the physical processes that are designed to simulate the real atmosphere and land-atmosphere interactions. Specifically, these consist of all moist processes including clouds and aerosols as well as earth-atmosphere interactions comprising of land-atmosphere fluxes involving the biosphere, snow-cover, and hydrology.
Latest Publications
Sud, Y. C., G. K. Walker, Y. P. Zhou, G. A. Schmidt, W. K.-M. Lau, and R. F. Cahalan, 2008: Effects of doubled CO2 on tropical Sea-Surface Temperatures (SSTs) for onset of deep convection and maximum SST – GCM simulations based inferences. Geophy. Res. Lett. 35, L12707, doi:10.1029/2008GL033872Click. [Abstract] [Full Text (PDF)]
Sud, Y. C., G. K. Walker, Y. P. Zhou, and W. K.-M. Lau, 2008: Influence of local and remote sea-surface temperatures on precipitation as inferred from changes in boundary layer moisture convergence and moist thermodynamics over global oceans. Q. J. R. Meteorol. Soc., 134, 147-163. [Abstract] [Full Text (PDF)]
Lau, K.-M., K.-M. Kim, G. Walker, and Y. C. Sud, 2008: A GCM study of the possible impacts of Saharan dust heating on the water cycle and climate of the tropical Atlantic and Caribbean regions. J. Climate. (Submitted)
Sud, Y. C., and D. Lee, 2007: Parameterization of aerosol indirect effect to complement McRAS cloud scheme and its evaluation with the 3-year ARM-SGP analyzed data for single column models. Atmos. Res., 86, Issue 2, 105-125 doi:10.1016/j.atmosres.2007.03.007. [Abstract]
Sud, Y. C., D. M. Mocko, and S.-J. Lin, 2006: Performance of two cloud-radiation parameterization schemes in the fvGCM for anomalously wet May and June 2003 over the continental United States and Amazonia. J. Geophys. Res. Atmos., 111(D6), 6201, doi:10.1029/2005JD006246. [Abstract]
Kim, M.-K., K.-M. Lau, M. Chin, K.-M. Kim, Y. Sud, and G. K. Walker, 2006: Atmospheric teleconnection over Eurasia induced by aerosol radiative forcing during boreal spring. J. Climate 19, 4700-4718.
Koster, R. D., Z.-C. Guo, P. A. Dirmeyer, G. Bonan, E. Chan, P. Cox, H. Davies, C. T. Gordon, S. Kanae, E. Kowalczyk, D. Lawrence, P. Liu, C.-H. Lu, S. Malyshev, B. McAvaney, K. Mitchell, D. M. Mocko, T. Oki, K. W. Oleson, A. Pitman, Y. C. Sud, et al., 2006: GLACE: The Global Land-Atmosphere Coupling Experiment. Part I: Overview. J. Hydrometeor., 7(4), 590-610. [Abstract]
Guo, Z.-C., P. A. Dirmeyer, R. D. Koster, G. Bonan, E. Chan, P. Cox, C. T. Gordon, S. Kanae, E. Kowalczyk, D. Lawrence, P. Liu, C.-H. Lu, S. Malyshev, B. McAvaney, J. L. McGregor, K. Mitchell, D. M. Mocko, T. Oki, K. W. Oleson, A. Pitman, Y. C. Sud, et al., 2006: GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis. J. Hydrometeor., 7(4), 611-625. [Abstract]
Lau, K. M., W. T. Hu, Y. Sud, and G. Walker, 2005: Effects of cloud microphysics on tropical atmospheric hydrologic processes and intraseasonal variability in the GEOS GCM. J. Climate, 18, 4731-4751.
Koster, R. D., P. A. Dirmeyer, Z. Guo, G. Bonan, E. Chan, P. Cox, C. T. Gordon, S. Kanae, E. Kowalczyk, D. Lawrence, P. Liu, C.-H. Lu, S. Malyshev, B. McAvaney, K. Mitchell, D. Mocko, T. Oki, K. Oleson, A. Pitman, Y. C. Sud, et al., 2004: Regions of strong coupling between soil moisture and precipitation. Science, 305(5687), 1138-1140. [Abstract] [Full Text (PDF)]
Latest Images of the Week
Relationships between Cloud Condensation Nuclei (CCN) and Aerosol Number Concentration (Jul 27, 2008)
GISS Model-E Evaluation in a Doubled CO2 Evironment (Oct 14, 2007)
The Influence of Local Sea-Surface Temperatures on Rainfall (Feb 4, 2007)
Influence of Remote versus Local Sea-Surface Temperatures (SST) on Precipitation (Jul 23, 2006)
2005 Hurricane Season Modeling Simulation (Jan 8, 2006)
Aerosol Activation Using Nenes' Cloud-Particle Size Sorting (Sep 4, 2005)
SST Forcing of Rainfall and Vertical Velocity: An Insight Beyond Monthly and Seasonal Means (May 15, 2005)
Influence of Aerosols on Climate (May 16, 2004)