Research Projects

A. Urban Research

  • Online monitoring and modeling of water distribution system, hydraulics and water quality
    Real-time monitoring of Singapore’s water distribution system by a network of wireless sensors
    to reduce water losses by detecting leaks and pipe bursts events (a first step towards the development of
    a smart water grid).
     
  • Non-point source water quality in Singapore's catchments
    Sampling and bacterial analysis of stormwater drains suggest leakage from the sanitary sewer system as
    a possible source of contamination of Singapore’s surface waters.
     
  • Ecological genomic indicators for urban water quality
    Study of microbial community gene content and expression in water to identify the next generation of
    bioindicators for water quality monitoring.
     
  • Measurement and models of the urban atmosphere
    Study of the interactions of the built environment and the urban atmosphere, which influence each
    other, with impacts on near-surface air temperature, air quality, air movement and rainfall.
     
  • In-situ chemical sensing for urban, marine and climate monitoring
    Development of miniaturised LED-Induced-Fluorescence sensors for rapid in-situ measurements
    of water quality to identify and help solve water quality problems more effectively.
      B. Marine research 
  • Coastal Environment and Sediment Transport (CEST)
    The WCS facility (NUS) is the first of its kind to be able to simulate sediment transport by combined wavecurrent
    flows over a sloping bottom.
     
  • Dynamics of sediment clouds
    Experimental, theoretical and numerical simulations are used to study the fluid mechanics of sediment
    clouds observed in land reclamation and dredging waste disposal.
     
  • Near-field hydrodynamic sensors
    Developing MEMS-sensor-arrays to detect objects and
    flow patterns underwater and harbour-seal-whiskerlike sensors for underwater sensing and tracking.
    These biomimetic sensors are then mounted on autonomous robotic systems (WAVES Lab, see below).
     
  • Water and air vehicles for environmental sensing (WAVES lab)
    Developing path planning tools, navigation control tools and new marine vehicles (stingray) that can be used to
    augment the capabilities of an autonomous robotic fleet for monitoring and inspection of the Singapore harbour.
     
  • Imaging underwater in occluded and turbid environments
    Developing high-speed holographic particle image velocimetry (PIV) instruments to acquire 3D flow
    data, and improve visibility for optical imaging in the turbulent waters of Singapore’s port.

C. Climate research 

  • Coral records of anthropogenic marine lead (Pb) and regional climate change
    Study of the geochemistry of carbonate layers deposited by reef-building corals to infer past changes
    (decades to century ago) in heavy metals and climate in marine environments.
     
  • Regional climate modeling and coupled ocean-atmosphere modeling of the maritime continent
    An integrated regional climate modeling system, coupling the regional ocean model and new land
    surface scheme, has been developed to better predict rainfall events. A coupled ocean-atmosphere
    model has been developed to predict future climate scenarios over the next 20 to 40 years.
     
  • Simulations of the present climate of the circulation of the South China Sea and Indonesian Throughflow
    The circulation of the Indonesian system connecting the Pacific to the India ocean is investigated through
    decadal simulations of its circulation and thermal structure on different space/time scales.
     
  • Global climate modeling and processes
    To improve our understanding of some largest uncertainties in climate projections, particularly the
    impact of anthropogenic aerosols on the monsoon system and aerosol-cloud-precipitation interactions.
    Use climate system model to study future climate change and provide results for making regional
    climate projections.
     
  • Carbon, water and energy fluxes from forested and deforested tropical environments
    Measuring ecosystem exchange and its coupling with hydrology in tropical peatlands and turf.