Weekly CASPO Seminar: join us on Zoom every Wednesday at 3:30 pm to hear about the latest and greatest in Climate, Atmospheric Sciences, and Physical Oceanography!
Dr. Matthew Archer of the Jet Propulsion Laboratory will give a talk titled An assessment of the data assimilation system developed for the SWOT satellite mission.
When the Surface Water and Ocean Topography (SWOT) satellite launches in 2022, an in-situ field campaign is planned to reconstruct the ground truth for instrument calibration and validation (CalVal). It is demonstrably difficult to capture the sea surface height (SSH) features that are the focus of SWOT, with both short temporal (< 20 days) and spatial scales (15 – 150 km). Therefore, a critical component of the SWOT CalVal will be a multi-scale data assimilation (DA) system coupled to a primitive equation numerical model that can reconstruct: (1) the 2D sea surface height over the SWOT swaths, and (2) the 3D dynamical (velocity) fields. In this talk I will present a strategic evaluation of the DA system that demonstrates its performance based on independent in-situ observations taken during the 2019-2020 pre-launch field campaign. I will also show some initial results from an observing system simulation experiment (OSSE) for a preliminary design of the post-launch CalVal that explores its performance from a data assimilation perspective.
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