Sensitivity of Earth Model Selection on Terrestrial Water Storage Inversion From GNSS Vertical Displacements
The global navigation satellite system (GNSS)-inverted terrestrial water storage (TWS) approach commonly adopts the PREM Earth model while neglecting crustal heterogeneity. This study systematically evaluates the impacts of different Earth models, including three spherically symmetric models (PREM, STW105, and AK135F)...