GPS tomography using the permanent network in Goteborg: simulations

We will draw attention to a new technique for retrieval of 3D water vapor refractivity fields by using a small network of GPS receivers, referred to as GPS tomography. We present first results of the simulations of tomographic solutions using two different approaches and applied on a recently established network of GPS receivers in the area of Goteborg (Sweden). We study the network capabilities to resolve water vapor structures using grids with different vertical and horizontal resolutions. The sensitivity to resolve vertical structures and the impact of noise present in the data are also shown. The simulation results indicate the feasibility of the GPS tomographic method to be applied on the existing network.