Sandbar regulated hydrodynamic influences on hydrochemistry of Mengabang Telipot estuary, Peninsular Malaysia

Abstract

Influences of river and groundwater hydrodynamic behaviours (water level, flow velocity and flow rate) on hydrochemistry (salinity, pH, dissolved oxygen (DO) saturations and dissolved phosphate (DP)) were evaluated through high spatial and temporal resolution study at sandbar-regulated Mengabang Telipot estuary. River and groundwater levels were measured using stick gauge and pressure transducer sensor. River flow velocity was measured using Valeport flow meter. River flow rate was calculated from stage-area curve. River and groundwater were sampled sub-daily at high tide and low tide. Salinity, pH and DO were measured in-situ using YSI Multi-parameter probe. DP was determined using ascorbic acid method.