Evaluation of the Performance of Spline Interpolation Method in Mapping and Estimating the Total Suspended Solids over the Coastal Water of Pulau Tuba, Kedah

Abstract The purpose of this paper is to evaluate the performance spline interpolation method in predicting and mapping concentration Total Suspended Solids (TSS) surface water Pulau Tuba, Kedah. Thirty sampling points were set up geolocated using Geographic Positioning System (GPS). Gravimetric analyses used determine TSS level. Fifty percent total randomly chosen for developing spatial models regularised tension methods. research found that methods outperform method. Mean Squared Error (MSE), Root (RMSE), Absolute (MAE), Percentage (MAPE) reported at 351.641, 18.752, 15.81, 21.51%, respectively. This study’s findings are critical domains statistics creating a precise map properties.