Publications

ORCID: 0000-0003-0168-3782

working papers, forthcoming, and in preparation

  1. Priced Floods, Promised Protection: Flash Floods, Adaptation Disclosure, and Housing Prices in Singapore(Pak, Liao, et al., 2026)
  2. Modelling the consequence space reveals urban vulnerabilities to future extreme climate events [submitted to Global Environmental Change](Pak, Sha, et al., 2026)
  3. Insights from policymakers from co-designing a Heat Risk Index in Singapore—towards better translation from research to policy [manuscript in preparation](Pak, Heng, et al., 2026)
  4. Climate mitigation as post-completion legitimation of a contested megaproject: The Saemangeum Seawall [submitted to World Development](Cho et al., 2026)

first-authored publications

  1. Sun Glint-Aware Restoration (SUGAR): a robust sun glint correction algorithm for UAV imagery to enhance monitoring of turbid coastal environments(Pak et al., 2025)
  2. Correction of systematic image misalignment in direct georeferencing of UAV multispectral imagery(Pak, Lin, et al., 2024)
  3. CoastalWQL: An open-source tool for drone-based mapping of coastal turbidity using push-broom hyperspectral imagery(Pak, Kieu, et al., 2024)
  4. Retrieval of total suspended solids concentration from hyperspectral sensing using hierarchical Bayesian model aggregation for optimal multiple band ratio analysis(Pak et al., 2023)
  5. Hyperspectral sensing of total suspended solids concentrations using hierarchical Bayesian model aggregation for optimal multiple band ratio analysis (HBMA-OMBRA)(Pak et al., 2022)
  6. A framework for assessing the adequacy of Water Quality Index—quantifying parameter sensitivity and uncertainties in missing values distribution(Pak, Chuah, Tan, et al., 2021)
  7. Effects of land use configuration, seasonality and point source on water quality in a tropical watershed: A case study of the Johor River Basin(Pak, Chuah, Yong, et al., 2021)

co-authored publications

  1. A Comparative Study of Multi-Rotor Unmanned Aerial Vehicles (UAVs) with Spectral Sensors for Real-Time Turbidity Monitoring in the Coastal Environment(Trinh et al., 2024)
  2. UAV-based remote sensing of turbidity in coastal environment for regulatory monitoring and assessment(Kieu et al., 2023)
  3. A Framework for Survey Planning Using Portable Unmanned Aerial Vehicles (pUAVs) in Coastal Hydro-Environment(Trinh et al., 2022)

theses

  1. PhD Thesis - Remote sensing of coastal turbidity with unmanned aerial vehicle-borne multispectral and hyperspectral sensors in the coastal region of Singapore (Pak, 2024)
  2. Master Thesis - An assessment of river water quality : case study of Johor River basin, Malaysia (Pak, 2020)
  3. Bachelor Thesis - Investigating factors responsible for soil pH and its spatial variation in the Nee Soon Swamp Forest (Pak, 2018)
List of publications
Cho, A., Valenzuela, V. P. B., Ho, X. T., Pak, H. Y., & Van Gevelt, T. (2026). Climate mitigation as post-completion legitimation of a contested megaproject: The saemangeum seawall.
Kieu, H. T., Pak, H. Y., Trinh, H. L., Pang, D. S. C., Khoo, E., & Law, A. W.-K. (2023). UAV-based remote sensing of turbidity in coastal environment for regulatory monitoring and assessment. Marine Pollution Bulletin, 196, 115482. https://doi.org/10.1016/j.marpolbul.2023.115482
Pak, H. Y. (2018). Investigating factors responsible for soil pH and its spatial variation in the nee soon swamp forest.
Pak, H. Y. (2020). An assessment of river water quality: Case study of johor river basin, malaysia. https://doi.org/10.32657/10356/145107
Pak, H. Y. (2024). Remote sensing of coastal turbidity with unmanned aerial vehicle-borne multispectral and hyperspectral sensors in the coastal region of singapore. https://doi.org/10.32657/10356/180742
Pak, H. Y., Chuah, C. J., Tan, M. L., Yong, E. L., & Snyder, S. A. (2021). A framework for assessing the adequacy of water quality index–quantifying parameter sensitivity and uncertainties in missing values distribution. Science of the Total Environment, 751, 141982. https://doi.org/10.1016/j.scitotenv.2020.141982
Pak, H. Y., Chuah, C. J., Yong, E. L., & Snyder, S. A. (2021). Effects of land use configuration, seasonality and point source on water quality in a tropical watershed: A case study of the johor river basin. Science of the Total Environment, 780, 146661. https://doi.org/10.1016/j.scitotenv.2021.146661
Pak, H. Y., Heng, S. L., Ho, X. T., Ho, B., Yik, S. K., Mandelmilch, M., & Chow, W. T. L. (2026). Insights from policymakers from co-designing a heat risk index in singapore—towards better translation from research to policy.
Pak, H. Y., Kieu, H. T., Law, A. W.-K., Lin, W., & Khoo, E. (2024). CoastalWQL: An open-source tool for drone-based mapping of coastal turbidity using push broom hyperspectral imagery. Remote Sensing, 16(4), 708. https://doi.org/10.3390/rs16040708
Pak, H. Y., Law, A. W.-K., & Lin, W. (2022). Hyperspectral sensing of total suspended solids concentrations using hierarchical bayesian model aggregation for optimal multiple band ratio analysis (HBMA-OMBRA). https://doi.org/10.3850/IAHR-39WC2521716X2022procd
Pak, H. Y., Law, A. W.-K., & Lin, W. (2023). Retrieval of total suspended solids concentration from hyperspectral sensing using hierarchical bayesian model aggregation for optimal multiple band ratio analysis. Journal of Hydro-Environment Research, 46, 1–18. https://doi.org/10.1016/j.jher.2022.11.002
Pak, H. Y., Law, A. W.-K., Lin, W., & Khoo, E. (2025). Sun glint-aware restoration (SUGAR): A robust sun glint correction algorithm for UAV imagery to enhance monitoring of turbid coastal environments. Environmental Monitoring and Assessment, 197(3). https://doi.org/10.1007/s10661-025-13702-6
Pak, H. Y., Liao, W., Chow, W. T. L., & Zheng, S. (2026). Priced floods, promised protection: Flash floods, adaptation disclosure, and housing prices in singapore (Research Paper No. 26/16). MIT Center for Real Estate. https://doi.org/10.2139/ssrn.7538558
Pak, H. Y., Lin, W., & Law, A. W.-K. (2024). Correction of systematic image misalignment in direct georeferencing of UAV multispectral imagery. International Journal of Remote Sensing, 1–23. https://doi.org/10.1080/01431161.2024.2440944
Pak, H. Y., Sha, A., Valenzuela, V. P. B., Ho, X. T., Chow, W. T. L., & Van Gevelt, T. (2026). Modelling the consequence space reveals urban vulnerabilities to future extreme climate events.
Trinh, H. L., Kieu, H. T., Pak, H. Y., Pang, D. S. C., Cokro, A. A., & Law, A. W.-K. (2022). A framework for survey planning using portable unmanned aerial vehicles (p UAVs) in coastal hydro-environment. Remote Sensing, 14(9), 2283. https://doi.org/10.3390/rs14092283
Trinh, H. L., Kieu, H. T., Pak, H. Y., Pang, D. S. C., Tham, W. W., Khoo, E., & Law, A. W.-K. (2024). A comparative study of multi-rotor unmanned aerial vehicles (UAVs) with spectral sensors for real-time turbidity monitoring in the coastal environment. Drones, 8(2), 52. https://doi.org/10.3390/drones8020052