SDUST2020 MSS: a global 1? × 1? mean sea surface model determined from multi-satellite altimetry data

Abstract. This study focuses on the determination and validation of a new global mean sea surface (MSS) model, named Shandong University Science Technology 2020 (SDUST2020), with grid size 1?×1?. model was established 19-year moving average method fused multi-satellite altimetry data over 27-year period (from January 1993 to December 2019). The HaiYang-2A, Jason-3, Sentinel-3A were first ingested in SDUST2020 MSS but not any other such as CLS15 DTU18 models. Validations, including comparisons models, GPS-leveled tide gauges, altimeter data, performed evaluate quality all which showed that is accurate reliable. dataset freely available at site (data DOI: https://doi.org/10.5281/zenodo.6555990, Yuan et al., 2022).