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Dr. Hiu Fung Roger Kwok

As a post-doc working with Dr. Kirk Baker, of OAQPS, and Dr. Sergey Napalenok, of AMAD, Roger Kwok focuses on implementation of source apportionment algorithms into CMAQ. Prior to his EPA associateship, Roger worked as a research associate for one year at the Hong Kong University of Science & Technology (HKUST) after obtaining his PhD degree in mathematics. While in HKUST, Roger gathered emission inventory for Hong Kong and its neighborhood, carried out extensive numerical study of HK air quality using CMAQ, participated in a model system upgrade for the Hong Kong Environmental Protection Department (HKEPD), and conducted research on topics related to the air quality in the region. Apart from culpability study of emission sources, the topics also include model-measurement comparison of PM size distribution, validation with VOC measurements as ozone precursors, impacts of urban MM5 meteorology on the concentration level and spatial distribution of air pollutants, and the role of land-sea circulations in the region.

Roger Kwok

Biographical Information

Name: Hiu Fung Roger Kwok
Title:NRC Research Associate

Contact Info:

Atmospheric Modeling and Analysis Division
National Exposure Research Laboratory
Environmental Protection Agency
109 TW Alexander Drive
Rsearch Triangle Park, NC 27711

Phone: 919-541-1939
email: kwok.roger@epa.gov

Education
B.S., Mathematics, Universtiy Western Australia, 1994
MPhil, Appliced Physics, City University of Hong Kong, 2000
Ph.D., Mathmetacis, Hong Kong University of Science & Technology, 2009

Professional Experience
NRC Research Fellowship,USEPA, Research Triangle Park, NC, 2010 – present.
Implemented the PATH SMOKE-MEGAN-CMAQ air quality forecast system for Hong Kong Environmental Protection Department, and conducted a training workshop on it.

Research Associate, Hong Kong University of Science & Technology, Hong Kong, 2009 - 2010
Visiting scholar with Prof. J.S. Fu at Dept Civil & Environmental Engineering, University of Tennessee at Knoxville, Jul 2006 – Jan 2007.

Visiting Scholar, Dept Civil & Environmental Engineering, University of Tennessee at Knoxville, 2006 - 2007
Extensive applications of CMAQ models and evaluation of model outputs, including source apportionment, PM size redistribution, speciation of Hong Kong VOC measurement data into CB05, assessment of MM5v3.6 data with respect to Hong Kong meteorological observations, regridding and reclassification of MODIS landcover data for BEIS2.

Graduate Student, Hong Kong University of Science & Technology, 2003 - 2009
Extensive applications of CMAQ models and evaluation of model outputs, including source apportionment, PM size redistribution, speciation of Hong Kong VOC measurement data into CB05, assessment of MM5v3.6 data with respect to Hong Kong meteorological observations, regridding and reclassification of MODIS landcover data for BEIS2.

Professional Societies and Affiliations
American Meteorology Society

Selected Awards and Honors
Postdoctoral Fellowship, National Academies of Sciences & Engineering, 2010 - present

Publications and Presentations
Publications
Kwok, R.H.F., Fung, J.C.H., Lau, A.K.H., Fu, J.S.: Numerical study on seasonal variations of gaseous pollutants and particulate matters in Hong Kong and Pearl River Delta Region, J. Geophys. Res., 115, D16308. (2010)  doi:10.1029/2009JD012809.

Fu, J.S., Carey J. Jang, David G. Streets, Zuopan Li, Roger Kwok, Rokjin Park and Zhiwei Han 2007: MICS-Asia II: Modeling gaseous pollutants and evaluating an advanced modeling system over East Asia. Atmospheric Environment42(15), 3571-3583, doi10.1016/j.atmosenv.2007.07.058.

Pokrovsky, O.M., Roger H. F. Kwok and C. N. Ng 2002: Fuzzy logic approach for description of meteorological impacts on urban air pollution species: a Hong Kong case study. Computers & Geosciences, 28 (1), pp 119-127

Chan, J.C.L and Roger H. F. Kwok 1999: Tropical cyclone genesis in a global numerical weather prediction model. Monthly Weather Review, 127(5), pp 611-624

Chan, J.C.L. and Roger H. F. Kwok 1997: A diagnostic study on the improvement in tropical cyclone motion prediction by the UK Meteorological Office Global Model. Meteorological Application, 4, pp 1-9

Selected Presentations
R. Kwok, G. Sarwar, R. Zhang, A. Lau, J. Fung, J. Fu, and J. Jang: Examining the Impact of Sulfur Chemistry on Aerosol Sulfate Predictions in the Pearl River Delta Region. The 3rd International Workshop on Regional Air Quality Improvement in Rapidly Developing Economic Regions, Environment, Climate and Energy, Nov 12-13, 2011, Guangzhou, China.

R. Kwok, J.C.H. Fung, A.K.H. Lau, J. Yu, and P. Bhave: PM Size Distribution in Southern China. 8th Annual CMAS Conference, Oct 19-21, 2009, Chapel Hill, NC

R. Kwok, J.C.H. Fung, A.K.H. Lau, J.S. Fu, Z.S. Wang, and G. Tonnessen: PM Sulfate in Hong Kong. 7th Annual CMAS Conference, October 6-8, 2008 Chapel Hill, NC

R. Kwok, J.C.H. Fung, A.K.H. Lau, and J.S. Fu: Urban Effects of Hong Kong and Pearl River Delta Region on Sulfur Cycle. 6th Annual CMAS Conference, October 1-3, 2007 Chapel Hill, NC

J.C.H. Fung, R. Kwok, A.K.H. Lau, and J.S. Fu: Air Quality Modeling in Hong Kong on Particulate Episodes. The 10th International Conference on Atmospheric Sciences and Applications to Air Quality (ASAAQ), 14-16 May 2007, Hong Kong

J.C.H. Fung, R. Kwok, A.K.H. Lau, and J.S. Fu: Air Quality Modeling in Hong Kong on Particulate Episodes. 5th Annual CMAS Conference, October 16-18, 2006 Chapel Hill, NC

R. Kwok, J.C.H. Fung, J. Huang, A.K.H. Lau, J. Lo, Z. Wang, and Y. Qin: Comparison of CMAQ and SAQM Using Process Analysis for Hong Kong Ozone Episodes. 4th Annual CMAS Models-3 Users’ Conference, September 26-28, 2005 Chapel Hill, NC

Roger H. F. Kwok and C. N. Ng: Statistical and dynamical relationships among gaseous pollutants from automobiles in urban Hong Kong. Biometeorology and Urban Climatology at the Turn of the Millenium: Selected Papers from ICB-ICUC 99, pp 625-630, 1999.

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