Professional Profiles

Dr. Jiun-Dar Chern
Associate Research Scientist
Goddard Earth Sciences and Technology Center (GEST)/University of Maryland Baltimore County (UMBC)
Mesoscale Atmospheric Processes Branch (Code 613.1)
NASA Goddard Space Flight Center
Greenbelt, MD 20771
Email: chern@agnes.gsfc.nasa.gov
Phone: (301) 614-6175

Education
M. S., Ph. D., Earth and Atmospheric Sciences, Purdue University, 1989, 1994
B. S., Atmospheric Sciences, National Taiwan University, 1984

Employment
2000–Present: Associate Research Scientist, GEST/UMBC
1998–2000: Research Associate, Purdue University
1995–1997: Postdoc, Purdue University
1989–1994: Research Assistant, Purdue University

Honors and Awards
Mesoscale Atmospheric Processes Branch Exceptional Science Support Award, NASA Goddard, 2005
GMAO/SRT Group Achievement Award, NASA Goddard, 2003
Laboratory for Atmospheres Scientific Modeling Development Award, NASA Goddard, 2003
DAO/SRT Outstanding Performance Award, NASA Goddard, 2002

Membership in Academies, Professional Societies, and Editorships
American Geophysical Union

Special Experience
Has more than 18 years of experience in numerical modelings that including mesoscale model, global climate model, and cloud model.  He is the primary developer of the Purdue Mesoscale Model (PMM) and the Purdue Regional Climate Model (PRCM) when he was a graduate student and post-doctor at Purdue University.  He applied the PMM to study lee vortices and winter cyclogenesis over the western United   States, the 1988 US drought, 1993 Midwestern flood, and 1998 flood in eastern Asia.  He was a member of the Goddard fvGCM modeling group. He has improved the physical parameterizations and land surface model of the fvGCM and developed the interface between the model and the GEOS4 data assimilation system.  Recently, he has developed a prototype Goddard Multi-scale Modeling Framework (or super-parameterization) based on fvGCM and 2D GCE models.

Refereed Publications
Tao, W.-K., J.-D. Chern, R. Atlas, D. Randall, X. Lin, M. Khairoutdinov, A. Hou, C. Peters-Lidard, and J. Simpson, 2006: Multi-scale modeling system: Developments, applications and critical Issues. (in preparation)
Wu, M.-L., M. Bosilovich, S. D. Schubert, and J.-D. Chern, 2006: Water sources of precipitation for the India subcontinent during the summer monsoon season. (Submitted J. Hydrometeorology)
Sun, W.Y. and J.-D. Chern, 2006: Numerical study of influence of mountain ranges in Taiwan on a cold front. (accepted J. Meteor. Soc. Japan)
Bosilovich, M. and J.-D. Chern, 2006: Simulation of water sources and precipitation recycling for the MacKenzie, Mississippi and Amazon river basins. (accepted J. Hydrometeorology)
Shen, B.-W., R. Atlas, O. Reale, S.-J. Lin, J.-D. Chern, J. Chang, C. Hense, and J.-L. Li, Hurricane forecasts with a global mesoscale-rosolving model: Preliminary Results with Hurricane Katrina (2005).  (accepted Geophy. Res. Lett.)
Shen, B.-W., R. Atlas, J.-D. Chern, O. Reale, S.-J. Lin, T. Lee, and J. Chang, 2006: The 0.125 degree finite-volume general circulation model on the NASA Columbia supercomputer: Preliminary simulations of mesoscale vortices. Geophy. Res. Lett., 33, L05801, doi:10.1029/2005GL024594.
Sun, W. Y. and J.-D. Chern, 2005: Validation of a one-dimensional snow-land surface model at the Sleepers river watershed. Boundary-Layer Meteo., 116, 95-115.
Atlas, R. Atlas, O. Reale, B.-W. Shen, S.-J. Lin, J.-D. Chern, W. Putman, T. Lee, K.-S. Yeh, M. Bosilovich, and J. Radakovich, 2005: Hurricane forecasting with the high-resolution NASA finite volume general circulation model. Geophys. Res. Lett., 32, L03807, doi:10.1029/2004GL021513.
Bloom, S., A. da Silva, D. Dee, M. Bosilovich, J.-D. Chern, S. Pawson, S. Schubert, M. Sienkiewicz, I. Stajner, W.-W. Tan, M.-L. Wu, 2005. Documentation and Validation of the Goddard Earth Observing System (GEOS) Data Assimilation System - Version 4. Technical Report Series on Global Modeling and Data Assimilation 104606 , 26.
Chu, D. A., L. A. Remer, Y. J. Kaufman, B. Schmid, J. Redemann, K. Knobelspiesse, J.-D. Chern, J. Livingston, P. B. Russell, X. Xiong, and W. Ridgway, 2005: Evaluation of aerosol properties over ocean from MODIS during ACE-Asia. J. Geophys. Res., doi:1029/2004JD005208.
Li, J.-L., D. E. Waliser, J. H. Jiang, D. L. Wu, W. Read, J. W. Waters, A. M. Tompkins, L. J. Donner, J.-D. Chern, W.-K. Tao, R. Atlas, Y. Gu, K. N. Liou, A. Del Genio, M. Khairoutdinov, and A. Gettelman, 2005: Comparisons of EOS MLS cloud ice measurements with ECMWF analyses and GCM simulations: Initial results. Geophys. Res. Lett., 32, L18710,doi:10.1029/2005GL023788.
Sun, W. Y., J.-D. Chern, and M. G. Bosilovich, 2004: Numerical study of the 1988 drought in the United States. J. Meteoro. Soc. Japan, 82, 1667-1678.
Chu, D. A., Y. J. Kaufman, G. Zibordi, J.-D. Chern, J-M Mao, C. Li, H. B. Holben, 2003:  Global Monitoring of AirPollution over Land from the Earth Observing System-Terra Moderate Resolution Imaging Spectroradiometer (MODIS) J. Geophys. Res., 108(D21), 4661,doi:10.1029/2002JD003179.
Haines, P. A., J. D. Chern, and W. Y. Sun, 1997:  Numerical simulation of the Valentine's Day storm during WISP 1990. Tellus, 49A, 595-612.
Sun, W. Y., M. G. Bosilovich, and J. D. Chern, 1997:  CCM1 regional response to anomalous surface properties.  Terrestrial, Atmospheric and Oceanic Sciences, 8, 271-288.
Sun, W. Y., and J. D. Chern, 1994:  Numerical experiments of vortices in the wake of idealized large mountains.  J. Atmos. Sci.,  51, 191-209.
Sun , W. Y., and J. D. Chern, 1993:  Diurnal variation of lee-vortexes in Taiwan and surrounding area . J. Atmos. Sci., 50, 3404-3430.
Sun, W. Y., J. D. Chern, C.C. Wu, and W. R. Hsu, 1991: Numerical simulation of mesoscale circulation in Taiwan and surrounding area. Mon. Wea. Rev., 119, 2558-2573.