Satellite altimetry has provided unique insights into ocean variability for more than 30 years, with an increasing number of missions. Gridded altimetry products are developed globally to maximize their utility, creating new opportunities for understanding oceanography and climate change. However, current gridded sea level anomalies (SLAs) are limited at smaller scales due to several factors, including satellite constellations and repeat cycles, but also global gridding approaches that do not fully capture regional dynamics. Focusing on the latter, we analyzed global gridded SLA data from altimetry on the Southwestern Continental Shelf. We developed a regional gridding strategy, demonstrating promising improvements in representing SLAs and derived geostrophic velocities. Various in-situ data sources, such as bottom pressure recorders and ADCPs, are now being used to explore the benefits of shelf-adapted gridded data to validate these regional grids.

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Marie is a PhD student from the German Geodetic Research Institute of the Technical University of Munich (DGFI-TUM, https://www.dgfi.tum.de/en) with a focus on gridded satellite altimetry data and their applications. Her academic background includes a Bachelor’s degree in Physics from the University of Heidelberg and a Master’s in Ocean and Climate Physics from the University of Hamburg. She is now working as a guest student in the Department of Atmospheric and Ocean Sciences, driven by her research on the Southwestern Continental Shelf.