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image of Prof. TAM Chi Yung Francis
Office: 
Room 314, 3/F, 
Mong Man Wai Building
Phone: 
(852) 3943 9828
Email: 
Francis.Tam [at] cuhk.edu.hk
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image of Prof. TAM Chi Yung Francis
Office: 
Room 314, 3/F, 
Mong Man Wai Building
Phone: 
(852) 3943 9828
Email: 

Francis, C Y TAM 譚志勇
Associate Professor
 
Education:
  • Ph. D., Atmospheric and Oceanic Sciences, Princeton University, 2004
  • M. Phil., Physics, The Chinese University of Hong Kong, 1996
  • B.Sc., Physics, The Chinese University of Hong Kong, 1993
 
Academic Employments:
  • 2020 – present, Associate Professor, Earth System Science Programme, The Chinese University of Hong Kong
  • 2014 – 2020, Assistant Professor, Earth System Science Programme, The Chinese University of Hong Kong
  • 2010 – 2014, Assistant Professor, School of Energy and Environment, City University of Hong Kong
  • 2008 – 2010, Lecturer, School of Energy and Environment, City University of Hong Kong
  • 2006 – 2008, Research Scientist, APEC Climate Center, Busan, Korea
  • 2004 – 2006, Postdoctoral Fellow, International Pacific Research Center, University of Hawaii
 
Research Fields and Current Research Interests:
Interested in understanding the variability of the tropical atmospheric circulation and the Asian monsoon, their predictability on the seasonal to inter-annual timescales, and their future behavior under climate change. Specialized in using atmosphere-ocean coupled GCM for studying seasonal climate predictability, regional climate predictions, and projecting future climate change. Also interested in the impacts of global warming on extreme events (including intense precipitation, tropical cyclones and storm surges), and the possible roles of urbanization on those occurring in the Pearl River Delta megacity area, using high-resolution numerical models and by incorporating background warming and urban physics in the simulated environment.
 
Honours and Awards:
  • NASA Postdoctoral Fellowship, International Pacific Research Center, 2003
  • Best student paper, The 13th Conference on Atmospheric and Oceanic Dynamics, 2001
  • Princeton University Graduate School Travel Grant, 2001
 
Professional Activities:
  • Climate Analysis Advisory Committee Member, APEC Climate Center
  • Fellow and Executive Committee Member of the Hong Kong Meteorological Society
  • Editorial Board Member of Scientific Reports, Nature Publishing Group
 
Teaching:
Current
  • ESSC 3200 Atmospheric Dynamics
  • ESSC 3300 Ocean and Climate
  • ESSC 4220 Tropical Meteorology
  • EASC 5001 Research Frontiers in Earth & Atmospheric Sciences I
  • EASC 5104 Advanced Topics in Atmospheric Dynamics
  • EASC 5220 Tropical Meteorology
Past
  • ESSC 4520 Numerical Methods and Modeling in Earth System Science
  • EASC 5520 Numerical Methods and Modeling for Earth and Atmospheric Sciences
 
College Affiliation in CUHK:
  • United College
 
Selected Recent Publications:
  1. Wang, Z., Z. Xiao, C.-Y. Tam, W. Pan, J. Chen. C. Hu, C. Ren, W. Wei and S. Yang, 2021: The projected effects of urbanization and climate change on summer thermal environment in Guangdong-Hong Kong-Macao Greater Bay Area of China, Urban Climate, 37, 2021, 100866. https://doi.org/10.1016/j.uclim.2021.100866.
  2. Li, R.K.K., C.-Y. Tam, N.-C. Lau, S.-J. Sohn and J.-B. Ahn, C. O’Reilly, 2021: Rossby wave source hotspots of the Silk Road pattern and their sensitivity to upper-level background wind, QJRM, doi: 10.1002/qj.4039 
  3. Li, R.K.K., C.-Y. Tam and N.-C. Lau, 2021: Effects of ENSO diversity and cold tongue bias on seasonal prediction of South China late spring rainfall, Climate Dynamics, https://doi.org/10.1007/s00382-021-05732-w
  4. Li, Y., N.-C. Lau, C.-Y. Tam, H.-M. Cheung, Y. Deng and H. Zhang, 2021: Projected Changes in the Characteristics of the East Asian Summer Monsoonal Front and their Impacts on the Regional Precipitation, Climate Dynamics, https://doi.org/10.1007/s00382-021-05687-y
  5. Hu, C., K.W, Fung, C.-Y. Tam, and Z. Wang, 2021: Urbanization impacts on Pearl River Delta extreme rainfall – sensitivity to land cover change vs anthropogenic heat, Earth and Space Science, DOI: 10.1029/2020EA001536
  6. Li, R.K.K., C.-Y. Tam, N.-C. Lau, S.-J. Sohn and J.-B. Ahn, 2020: Potential predictability of the Silk Road pattern and the role of SST as inferred from seasonal hindcast experiments of a coupled climate model,  J. Climate, doi: https://doi.org/10.1175/JCLI-D-20-0235.1..
  7. Lui, Y.S., K.-S. Tse, C.-Y. Tam, K.H. Lau and J. Chen, 2020: Performance of western north Pacific tropical cyclone track and intensity evolution in MPAS-A and WRF simulations, Theor. Appl. Climatol.,https://doi.org/10.1007/s00704-020-03444-5
  8. Wang, P., C.-Y. Tam, N.-C. Lau and X. Kang, 2020, Future Impacts of Two Types of El Niño on East Asian Rainfall Based on CMIP5 Model Projections, Climate Dynamics, http://link.springer.com/article/10.1007/s00382-020-05510-0
  9. Xu, K., H.-Y. Miao, B. Liu. C.-Y. Tam and W. Wang, 2020: Aggravation of record-breaking drought over the mid-to-lower reaches of the Yangtze River in the post-monsoon season of 2019 by anomalous Indo-Pacific oceanic conditions, Geophys. Res. Lett., DOI: 10.1029/2020GL090847. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL090847
  10. Nduka, I.C., S.H.L. Yim and C.-Y. Tam, 2020: Characteristics of surface energy balance and atmospheric circulation during hot-and-polluted episodes and their synergistic relationships with urban heat islands over the Pearl River Delta region, Atmospheric Chemistry and Physics, preprint, https://doi.org/10.5194/acp-2020-1068
  11. Li, J., C.-Y. Tam, A. P. K. Tai and N.-C. Lau, 2020: Vegetation-heatwave correlations and contrasting energy exchange responses of different vegetation types to summer heatwaves in the Northern Hemisphere during the 1982–2011 period., Agriculture and Forest Meteorology, 296 (2021) 108208. https://doi.org/10.1016/j.agrformet.2020.108208 
  12. Li, Z., S. Yang, C.-Y. Tam and C. Hu, 2020: Strengthening western Pacific atmospheric convection and its modulation on the trade wind during spring of 1901–2010,  Int. J. Climatol., https://doi.org/10.1002/joc.6856
  13. Wang, L., A.P.K. Tai, C.-Y. Tam, S. Mehliyar, P. Wang and K. Cheung, 2002: Impacts of future land use and land cover change on mid-21st-century surface ozone air quality: Distinguishing between the biogeophysical and biogeochemical effects, Atmospheric Chemistry and Physics, 20, 11349–11369, 2020, https://doi.org/10.5194/acp-20-11349-2020
  14. Lui, Y.S., C-Y. Tam, L K.-S. Tse, K.-K. Ng, W.-N. Leung and C.-C. Cheung, 2020: Evaluation of a customized variable-resolution global model and its application for high-resolution weather forecasts in East Asia, Earth and Space Science, 7, e2020EA001228. https://doi.org/10.1029/2020EA001228
  15. Xu., K., C..-Y. Tam, B. Liu, S. Chen, X. Yang, Z. Hen and W. Wang, 2020: Attenuation of Central Pacific El Niño Amplitude by North Pacific Sea Surface Temperature Anomalies, J. Climate, DOI: 10.1175/JCLI-D-19-0767.1
  16. Chen, J., Z. Wang, C.-Y. Tam, N.-C. Lau, D.-S. D. Lau and H.Y. Mok, 2020: Investigating climate change impacts on western North Pacific tropical cyclones and induced storm surges over the Pearl River Delta region based on pseudo-global warming experiments, Sci. Rep., 10, 1965; https://doi.org/10.1038/s41598-020-58824-8
  17. Zhang, T., C.-Y.Tam, X. Jiang, S. Yang; N.-C. Lau, J. Chen and C. Laohalertchai, 2019: Roles of land-surface properties and terrains on Maritime Continent rainfall and its seasonal evolution, Climate Dynamics, https://doi.org/10.1007/s00382-019-04951-6.
  18. Wang, P, C.-Y. Tam and K. Xu, 2019: El Niño-East Asian summer monsoon teleconnection and its diversity in CMIP5 models, Climate Dynamics, https://doi.org/10.1007/s00382-019-04938-3
  19. Sohn, S.-J., C.-Y. Tam and J.-S. Kug, 2019: How does ENSO diversity limit the skill of tropical Pacific precipitation forecasts in dynamical seasonal predictions? Climate Dynamics, https://doi.org/10.1007/s00382-019-04901-2
  20. Lui, Y. S., C.-Y. Tam, Au-Yueng A. Y. M. and N.-C. Lau, 2018: Role of Cumulus Parameterization Scheme on the Diurnal Cycle of Precipitation over Southeast Asia in RegCM4, Climate Dynamics, DOI 10.1007/s00382-018-4517-4
  21. Lui, Y. S., C.-Y. Tam and N.-C. Lau, 2018: Future changes in Asian summer monsoon precipitation extremes as inferred from 20-km AGCM simulations, Climate Dynamics, https://doi.org/10.1007/s00382-018-4206-3
  22. Xu, K., Q.-L. Huang, C.-Y. Tam, W. Wang, S. Chen and C. Zhu, 2018: Roles of tropical Pacific SST patterns during two types of ENSO in modulating wintertime rainfall over southern China, Climate Dynamics, DOI: 10.1007/s00382-018-4170-y
  23. Lee, R. W.-K., C.-Y. Tam, S.-J. Sohn and J.-B. Ahn, 2017: Predictability of two types of El Niño and their climate impacts in boreal spring to summer in coupled models, Climate Dynamics, https://doi.org/10.1007/s00382-017-4039-5
  24. Au-Yueng, A. Y. M., and C.-Y. Tam, 2017: Dispersion characteristics and circulation associated with boreal summer westward travelling mixed-Rossby gravity wave-like disturbances, J. Atmos. Sci., https://doi.org/10.1175/JAS-D-16-0245.1
  25. Wang, L., K. Cheung, C.-Y. Tam, A. P. K. Tai and Y. Li, 2017: Evaluation of the RegCM Regional Climate Model over the Loess Plateau of China,  Int. J. Climatol., DOI: 10.1002/joc.5159 http://onlinelibrary.wiley.com/doi/10.1002/joc.5159/abstract
  26. Holst, C. C., J.C.L Chan and C.-Y. Tam, 2017: Sensitivity of Precipitation Statistics to Urban Growth in a Subtropical Coastal Megacity Cluster. J. Env. Sciences, http://dx.doi.org/10.1016/j.jes.2017.01.004
  27. Xu, K., C.-Y. Tam, C. Zhu, B. Liu and W. Wang, 2017: CMIP5 Projections of Two Types of El Niño and Their Related Tropical Precipitation in the 21st Century. J. Clim., DOI: 10.1175/JCLI-D-16-0413.1 http://journals.ametsoc.org/doi/10.1175/JCLI-D-16-0413.1
  28. Sohn, S.-J., C.-Y. Tam and H.I Jeong, 2016:How do the strength and type of ENSO affect SST predictability in coupled models. Sci. Rep. 6, 33790; doi: 10.1038/srep33790
  29. Kwok, G. L. K., Y. F. Lam and C.-Y. Tam, 2016: Developing a Statistical Based Approach for Predicting Local Air Quality in Complex Terrain Area, Atmospheric Pollution Research, http://dx.doi.org/10.1016/j.apr.2016.08.001
  30. Holst, C. C., C.-Y. Tam, and J.C.L Chan, 2016:Sensitivity of urban rainfall to anthropogenic heat flux - a numerical experiment. Geophys. Res. Lett., DOI: 10.1002/2015GL067628.
  31. Sohn, S.-J., and C.-Y. Tam, 2015: Long-lead station-scale prediction of hydrological droughts in South Korea based on bivariate pattern-based downscaling. Climate Dynamics, DOI 10.1007/s00382-015-2770-3
  32. Li, Y.-B.,C.-Y. Tam, W.-R. Huang, K. Cheung and Z. Gao, 2015: Evaluating the impacts of cumulus, land surface and ocean surface schemes on summertime rainfall simulations over East-to-southeast Asia and the western north Pacific by RegCM4. Clim. Dyn., doi :10.1007/s00382-015-2714-y.
  33. Ye, K., C.-Y. Tam, W. Zhou and S.-J. Sohn, 2015: Seasonal prediction of June rainfall over South China- Model assessment and bias correction. Adv. Atmos. Sci., 32(5), 680–689, doi: 10.1007/s00376-014-4047-x.

Complete publication list can be found in my Google Scholar profile.
 
Research Grants:
  • “Attribution of extreme rainfall over Hong Kong and the Pearl River Delta to anthropogenic influences based on dynamical downscaling”, General Research Fund, Research Grant Council, HKSAR Government
  • "Compound floods from upstream river discharge, localized rainstorm and storm surge across the Pearl River Delta megacity region: Risks, Changes and Mechanisms", General Research Fund, Research Grant Council, HKSAR Government
  • “Understanding the influence of climate change on East Asian precipitation variability and its relationship with El Nino-Southern Oscillation”, CUHK Direct Grant.
  • “Climate change impacts on potential storm surges in Hong Kongo- A modeling study”, General Research Fund, Research Grant Council, HKSAR Government
  • “Hydrological impacts of ENSO in the present and future climate”, CUHK Direct Grant.
  • “Development of a rapid assessment tool for evaluating the effectiveness of emission control policies on ozone reduction”, Environmental and Conservation Fund, Environmental Protection Department, HKSAR Government.
  • “Extreme Rainfall Events in Hong Kong- A Modeling Study on the Impacts of Climate Change and Urbanization”, Early Career Scheme, Research Grant Council, HKSAR Government
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