Endorheic Waterbodies Delineation From Remote Sensing as a Tool for Immersed Surface Topography

For several decades, it becomes possible to delineate waterbodies and their dynamics from optical or radar images, that are now available at high spatial temporal resolutions. We present here an interpolation approach takes benefits this delineation in endorheic areas. It consists computing isovalue contour lines improve topography estimates classically obtained measurement points only. The approach, based on a minimization problem, uses thin plate spline (TPS) functions, the coefficients of which determined along with unknown water level each curve. Results generated show applied three contour-line curves, yields lower root mean square error (RMSE) using only one point compared nine classical approach.