Tieh Yong Koh

Associate Professor Koh Tieh Yong

Associate Professor

School of Science and Technology

Tel: +65 6248​ 0315​

Email: 4oCLdHlrb2hAc3Vzcy5lZHUuc2c=

Educational Qualifications

  • 2001
    PhD (Atmospheric Science), Massachusetts Institute of Technology

  • 1994
    BSc Hons 1st (Physics), Imperial College London

Academic and Professional Experience

2021 - Present
Associate Professor, School of Science and Technology, Singapore University of Social Sciences

2017 - 2021
Associate Professor, Centre for University Core, College of Lifelong and Experiential Learning, Singapore University of Social Sciences (*renamed from SIM University)

2016 - 2017
Associate Professor, UniSIM College, SIM University

2015 - 2016
Associate Professor (with tenure), Asian School of the Environment, Nanyang Technological University (NTU)

2013 - 2015
Associate Professor (with tenure), School of Physical & Mathematical Sciences, NTU

2009 - 2016
Principal Investigator, Earth Observatory of Singapore, NTU

2008 - 2017
Co-Investigator, Center for Environmental Sensing & Modeling (CENSAM), Singapore-MIT Alliance for Research and Technology (SMART)

2005 - 2014
Principal Investigator, Temasek Laboratories, NTU

2004 - 2013
Assistant Professor, School of Physical & Mathematical Sciences, NTU

2001 - 2004
Research Scientist (A), Temasek Laboratories, National University of Singapore (NUS)

Visiting Scientist, Laboratoire de Meteorologie Dynamique (LMD), Ecole Polytechnique

Journal Articles (Refereed):

Koseki, S., R. Fonseca, T.-Y. Koh and C.-K. Teo (2022)
"Upper tropospheric cloud-radiation interaction induced by monsoon surge over the South China Sea", Meteorol. Appl., under review.

Feng, L., T. Zhang, T.-Y. Koh and E. Hill (2021)
"Selected years of monsoon variations and extratropical dry-air intrusions compared with the Sumatran GPS Array observations in Indonesia", J. Meteorol. Soc. Japan, 99(2), 505-536. DOI: 10.2151/jmsj.2021-026.

Teo, C.-K., T.-Y. Koh, K. K. W. Cheung, B. Legras, H. N. Huynh, L. Y. Chew and L. Norford (2021)
"Scaling characteristics of modelled tropical oceanic rain clusters", Q. J. R. Meteorol. Soc., 147(735), 1055-1069. doi: 10.1002/qj.3959.

Tay, K, T.-Y. Koh and M. Skote (2021)
"Characterizing mesoscale variability in low-level jet simulations for CBLAST-LOW 2001 campaign", Meteorol. Atmos. Phys., 133(2), 163-179. DOI: 10.1007/s00703-020-00736-3.

Fonseca, R., T.-Y. Koh and C.-K. Teo (2019)
"Multi-scale interactions in a high-resolution tropical-belt experiment and observations", Clim. Dyn., 52(5), 3503-3532. doi: 10.1007/s00382-018-4332-y.

Tieo, J.-J., T.-Y. Koh, M. Skote and N. Srikanth (2018)
"Variance characteristics of tropical radiosonde winds using a vector-tensor method", Energies, 11(1), 137. DOI: 10.3390/en11010137.

Teo, C.-K., H.-N. Huynh, T.-Y. Koh, K. K. W. Cheung, B. Legras, L.-Y. Chew and L. Norford (2017)
"The universal scaling characteristics of tropical oceanic rain clusters", J. Geophys. Res., 122(11), 5582–5599. DOI: 10.1002/2016JD025921.

Lestari, R. K. and T.-Y. Koh (2016)
"Statistical evidence for asymmetry in ENSO-IOD interaction", Atmos. Ocean, 54(5), 498-504. DOI: 10.1080/07055900.2016.1211084.

Li, X. X., T.-Y. Koh, J. Panda and L. K. Norford (2016)
"Impact of urbanization patterns on the local climate of a tropical city Singapore: an ensemble study", J. Geophys. Res., 121(9), 4386-4403. doi: 10.1002/2015JD024452.

Koh, T.-Y. and R. Fonseca (2016)
"Subgrid-scale cloud-radiation feedback for the Betts-Miller-Janjic convection scheme", Q. J. R. Meteorol. Soc., 142(695), 989-1006. doi:10.1002/qj.2702.

Fonseca, R. M., T. Zhang and K. T. Yong (2015)
"Improved simulation of precipitation in the tropics using a modified BMJ scheme in the WRF model", Geosci. Model Dev., 8, 2915-2928, DOI: 10.5194/gmd-8-2915-2015.

Chen, H., P. Malanotte-Rizzoli, T.-Y. Koh, G. Song (2014)
"The relative importance of the wind-driven and tidal circulations in Malacca Strait", Cont. Shelf Res., 88, 92-102. DOI: 10.5194/acp-15-2571-2015.

Koseki, S., T.-Y. Koh and C.-K. Teo (2014)
"Borneo vortex and meso-scale convective rainfall", Atmos. Chem. and Phys., 14, 4539-4562, doi:10.5194/acp-14-4539-2014.

Li, X. X., T.-Y. Koh, D. Entekhabi, M. Roth, J. Panda and L. K. Norford (2013)
"A multi-resolution ensemble study of a tropical urban environment and its interactions with the background regional atmosphere", J. Geophys. Res. doi: 10.1002/jgrd.50795.

Koseki, S., T. Y. Koh and C. K. Teo (2013)
"Effects of the Cold Tongue in the South China Sea on the Monsoon, Diurnal Cycle and Rainfall in the Maritime Continent", Quart. J. Roy. Meteor. Soc., 139(675), 1566-1582. DOI: 10.1002/qj.2052.

Koh, T. Y., S. Wang and B. C. Bhatt (2012)
"A diagnostic suite to assess NWP performance", J. Geophys. Res., 117, D13109, doi:10.1029/2011JD017103.

Li, X. X., R. E. Britter, L. K. Norford, T. Y. Koh and D. Entekhabi (2012)
"Flow and pollutant transport in urban street canyons of different aspect ratios with ground heating: large-eddy simulation", BoundaryLayer Meteorology, 142(2), 289-304. DOI: 10.1007/s10546-011-9670-9.

Teo, C. K., T. Y. Koh, C. F. Lo, B. C. Bhatt (2011)
"Principal Component Analysis of observed and modelled diurnal rainfall in the Maritime Continent", J. Clim., 24(17), 4662-4675. DOI: 10.1175/2011JCLI4047.1.

Koh, T. Y., Y. S. Djamil and C. K. Teo (2011)
"Statistical dynamics of tropical wind in radiosonde data", Atmos. Chem. and Phys., 11, 4177-4189, DOI: 10.5194/acp-11-4177-2011.

Koh, T. Y. and C. K. Teo (2009)
"Towards a mesoscale observation network in Southeast Asia", Bull. Amer. Meteor. Soc., 90(4), doi: 10.1175/2008BAMS2561.1.

Joseph, B., B. C. Bhatt, T. Y. Koh and S. Chen (2008)
"Sea breeze simulation over Malay Peninsula over an intermonsoon period", J. Geophys. Res., 113, D20122, doi:10.1029/2008JD010319.

Koh, T. Y. and R. A. Plumb (2004)
"Isentropic zonal average formalism and the near-surface circulation", Quart. J. Roy. Meteor. Soc., 130(600), pp. 1631-1654.

Koh, T. Y. and B. Legras (2002)
"Hyperbolic lines and the stratospheric polar vortex", Chaos, 12(2), pp. 382- 394. [ *most cited paper* ]

Koh, T. Y. and R. A. Plumb (2000)
"Lobe dynamics applied to barotropic Rossby-wave breaking", Phys. Fluids, 12(6), pp. 1518-1528.

Book Chapters:

Annamalai, H., W. R. Boos, G. Martin, B. Mapes, Y. Ming, P. Mukhopadhyay, T.-Y. Koh and S. Rao (2021)
"Grand Challenges in Asian Summer Monsoon Modeling — Representation of Processes and Sources of Model Error" in The Multiscale Global Monsoon System, C.-P. Chang, K.-J. Ha, R. H. Johnson, D. Kim, G. N. C. Lau and B. Wang, Eds., Vol. 11, World Scientific Series on Asia-Pacific Weather and Climate, World Scientific Publishing Co, pp. 420. ISBN: 978-981-121-659-6 (hardcover), 978-981-121-661-9(e-book).

Robertson, A. W., V. Moron, C.-P. Chang, F. Tangang, E. Aldrian, T. Y. Koh, L. Juneng (2011)
"The Maritime Continent Monsoon" in The Global Monsoon System - Research and Forecast, C.-P. Chang, Y. Ding, N.-C. Lau, R. H. Johnson, B. Wang and T. Yasunari, Eds., Vol. 5, World Scientific Series on Asia-Pacific Weather and Climate, World Scientific Publishing Co, pp. 594. ISBN: 978-981-4343-40-4.

Koh, T. Y. and P. Linden (2011)
"Geophysical and Environmental Fluid Mechanics" in Environmental Hazards, the Fluid Dynamics and Geophysics of Extreme Events, H. K. Moffatt and E. Shuckburgh, Eds., Vol. 21, Lecture Notes Series, Institute for Mathematical Sciences, National University of Singapore, World Scientific Publishing Co, pp. 315. ISBN: 978-981-4366-99-1.

Proceeding Papers:

T.-Y. Koh (2015)
"Statistical Distributions and Climate Change", Procedia IUTAM, 17, 53-58, doi:10.1016/j. piutam.2015.06.009.

Panda, J. and T.-Y. Koh (2014)
"Interaction between urban surface boundary and mesoscale weather", Proceedings of the 11th Symposium on the Urban Environment, American Meteorological Society, 2-6 February 2014. (https://ams.confex.com/ams/94Annual/webprogram/Paper232705.html)

Technical Reports:

K. Saito, T. Kuroda, S. Hayashi, H. Seko, M. Kunii, Y. Shoji, M. Ueno, T. Kawabata, S. Yoden, S. Otsuka, N. J. Trilaksono, T.-Y. Koh, S. Koseki, L. Duc, K. T. Xin, W.-K. Wong and K. C. Gouda (2011), "International Research for Prevention and Mitigation of Meteorological Disasters in Southeast Asia", Technical Reports of the Meteorological Research Institute, 65, pp.198, ISSN: 0386-4049

PhD Thesis:

Koh, T. Y. (2001), "Isentropic diagnostics of mid-latitude circulation and transport", Ph.D. thesis, Massachusetts Institute of Technology, USA, 288pp.

  • Weather and climate of Southeast Asia
  • Atmospheric modelling and prediction
  • Mixing and transport of tracers in fluids
  • Geophysical fluid dynamics

Consultant, Weather-related Incident, Pan-United Concrete Pte Ltd, Singapore

Instructor, Training Course on Climate for Secondary and Pre-university Geography Teachers, Academy of Singapore Teachers, Ministry of Education, Singapore

Consultant and Contributor, “ASEAN State of Climate Change Report”, Institute of Global Environmental Strategies, Bangkok, Thailand / Centre for International Law, National University of Singapore, Singapore. Commissioned by ASEAN Working Group on Climate Change

2014 - 2015
Project Consultant, “Development of Weather Database in Singapore for Atmospheric Dispersion Modelling”, DSO National Laboratories, Singapore

Project Consultant, “Sensitivity of Dispersion Modelling Results to Perturbations in Wind Magnitude”, DSO National Laboratories, Singapore

Nanyang Education Award, Nanyang Technological University

Koh Boon Hwee Scholars Award, Nanyang Technological University

Koh Boon Hwee Scholars Award, Nanyang Technological University (2× recipient)

1996 - 1999:
Jule Charney Prize, Massachusetts Institute of Technology

Granville Prize, University of London

Governors' Prize, Imperial College London

  • 2022: Mathematical Methods I & II
  • 2022: Enterprise Leadership for Transformation 03, Session 10 - Sustainable Energy and Carbon Mitigation Policies
  • 2021: Executive Management Programme 06, Session 10 - Why Do Good: Sustainable Development
  • 2019 - 2021: Science for Sustainability
  • 2014 - 2016: Climate and Climate Change
  • 2008 - 2010: Atmospheric Physics
  • 2007: Statistical Mechanics
  • 2006 - 2013: Classical Mechanics
  • 2005: Complex Methods for the Sciences
  • 2005: Calculus for the Sciences I
  • 2022: Invited Participant, "Geopolitics and Domestic Policy Implications of Climate Change", Inaugural LKYSPP Strategic Roundtable with Prime Minister's Office Strategy Group and National Climate Change Secretariat, Lee Kuan Yew School of Public Policy (LKYSPP), National University of Singapore, Singapore
  • 2022: Accredited Participant, Asia Pacific Institute of Experts Membership Accreditation Course 2022, Singapore
  • 2022: Convener AS40, Co-convener AS06, Speaker AS13, 19th Annual Meeting (Online), Asia-Oceania Geosciences Society
  • 2021: Invited Panellist, Conversations on "UN Sustainable Development Goals" and "Climate Change (UN IPCC A6R)", 18th Annual Meeting, Asia-Oceania Geosciences Society, Singapore
  • 2021: Invited Speaker, "Weather Prediction by Numerical Methods Module 2" Workshop, Meteorological Service Singapore and ASEAN Specialised Meteorological Centre
  • 2021: Invited Speaker, Third Workshop on ASEAN Regional Climate Data, Analysis and Projections, Meteorological Service Singapore and ASEAN Specialised Meteorological Centre
  • 2021 - Present: Lead Coordinator, Sustainability Cluster @ SUSS, Singapore University of Social Sciences
  • 2017 - 2020: Member, Stratospheric and Tropospheric Influences on Tropical Convective Systems, Stratosphere-Troposphere Processes and their Role in Climate, World Climate Research Programme, World Meteorological Organisation
  • 2016 - Present: Editor, Scientific Online Letters on the Atmosphere, Meteorological Society of Japan
  • 2016 - Present: Co-Chair (member before May 2022), Asia-Australia Monsoon Working Group, CLIVAR/GEWEX Monsoons Panel, World Meteorological Organisation
  • 2015: Invited Speaker, International Student Energy Summit
  • 2014 - Present: Member, Madden-Jullian Oscillation Task Force, Working Group on Numerical Experimentation, World Meteorological Organisation
  • 2013: Expert Reviewer, 5th Assessment Report, Working Group 1, Inter-governmental Panel for Climate Change
  • 2012: Member, Climate Science Experts Network, Meteorological Service Singapore
  • 2012: Reviewer, White Paper for Competitive Research Programme (CRP) 10th Call-for-Proposals, National Research Foundation, Singapore
  • 2012: Editor, Advances in Geosciences, Vol. 28 - Atmospheric Science and Ocean Science
  • 2011: Editor, Advances in Geosciences, Vol. 22 - Atmospheric Science
  • 2010 - Present: Secretary, Atmospheric Sciences Section, Asia-Oceania Geosciences Society
  • 2004: Conference Publication Chair, 2nd Annual Meeting, Asia-Oceania Geosciences Society
  • 2004 - Present: Member, Asia-Oceania Geosciences Society
  • 2002: Reviewer, Atmospheric Sciences Research Grant, Natural Environment Research Council, United Kingdom
  • 2022: Organiser and Lecturer, Online Workshop on Atmospheric Dynamics, College of Science, Nanyang Technological University, Singapore
  • 2021: Invited Lecturer, "Climate Change and Physics", CY1308 Physics, CN Yang Scholars Programme, Singapore
  • 2021: Invited Expert, "Inter-varsity Singapore Green Plan 2030 Youth Conversation", National Youth Council, Singapore
  • 2021: Invited Panelist, "Perspectives on Opportunities for Geography Students in Universities", 2021 Geography Symposium, Singapore
  • 2021: Invited Speaker, Presentation on "Perspectives of Climate Change in Singapore", Anderson Serangoon Junior College, Singapore
  • 2020: Member, Academic Audit Committee, Singapore University of Social Sciences
  • 2020: Member, Syllabus Development Committee for Pre-University Geography, Ministry of Education, Singapore
  • 2019: Member, Curriculum Review Committee for Pre-University Geography, Ministry of Education, Singapore
  • 2015: Invited Panelist, Earth Day Film Screening "Chasing Ice", organized by Asian Venture Philanthropy Network
  • 2014 - 2016: Member, NTU Teaching Council, Nanyang Technological University
  • 2014: Examiner, Asian Physics Olympiad
  • 2013 - 2014: Member, Advisory Committee, Climate Change Exhibition II, Singapore Science Centre
  • 2009 - 2010: Member, ‘A’-level Mathematics Syllabuses Consultative Committee, Ministry of Education
  • 2007 - 2008: Member, Advisory Committee, Climate Change Exhibition I, Singapore Science Centre
  • 2008 - Present: Member, Selection Panel, WSPC-ICAAS Most Outstanding Junior College Science Student Award, jointly awarded by Imperical College Alumni Association of Singapore (ICAAS) and World Scientific Publishing Company (WSPC) and facilitated by the Ministry of Education
  • 2006: Examiner, International Physics Olympiad
  • 2005: Member, Steering Committee, Science.05, annual science activity month jointly organized by Singapore Science Centre and A*STAR

Total funding of $7,734,400 (SGD) over 15 years

  • 2015 - 2017: Rainfall as Self-Organized Criticality: Observations and Models ($276,000)
  • 2013 - 2017: Monsoon Dynamics, Predictability and Tropical Paleoclimate ($1,093,100)
  • 2013 - 2015: Rainfall, Mesoscale Weather, Climate Change and Urban Boundary Layer ($192,000)
  • 2012 - 2014: Weather Research IV ($540,000)
  • 2011 - 2015: Combined statistical downscaling and disaggregation of regional climate data ($562,700)
  • 2011 - 2012: Urban Boundary Layer and Mesoscale Weather Modelling ($184,800)
  • 2010 - 2012: Atmospheric Modelling of Singapore and Southeast Asia ($184,800)
  • 2010 - 2011: Urban Canyon and Boundary Layer Modelling ($91,200)
  • 2009 - 2014: Regional Climate Downscale of El Nino and Indian Ocean Dipole ($579,800)
  • 2009 - 2012: Weather Research III ($1,600,000)
  • 2005 - 2008: Weather Research II ($1,200,000)
  • 2005 - 2016: Geophysical Fluid Dynamics of Tropical Atmospheres ($150,000)
  • 2002 - 2005: Weather Research I ($1,080,000)
Back to top
Back to top