SPAMS (Simple Parameterization for the Motion of Soils) is a model that provides a first approximation of vertical soil motion for a particular location described by four parameters, given the availability of meteorological data. SPAMS estimates surface motion parameters based on physical processes by assuming that soil displacement is mainly driven by meteorological factors, and distinguishes between reversible and irreversible subsidence. The model uses precipitation and evapotranspiration data from nearby meteorological stations. The SPAMS parameters can be estimated using a certain period of observations from Interferometric Synthetic Aperture Radar (InSAR), extensometers, or other instruments that can measure vertical displacement. The estimated SPAMS parameters are then used to model relative surface elevation over time. These parameters rely on the assumption that the conditions of the area of interest, i.e., soil stratigraphy, ground water management, and land use, remain the same over time.
This repository provides the so-called SPAMS10 parameters over the …