A geodetic study of sinking cities and subsiding deltas in East and Southeast Asia
We will use geodetic (GPS and InSAR) and geologic data to study magnitude, rates and sources of subsidence in locations around East and Southeast Asia that include Bangkok (Thailand), Jakarta and the north coast of Java (Indonesia), the Pearl River Delta (China), and Singapore. Many of these locations are suffering rapid subsidence as a result of groundwater withdrawal. In Singapore, it is unknown if subsidence is occurring in areas of land reclamation. Our science questions will address the causes of subsidence of these areas (including human versus natural processes), and our results will contribute to a holistic understanding of flooding and coastal hazards in the region.