Consistent Satellite Altimetry and In situ Buoys Data Assimilation of significant wave height and surface wind speed

In recent years, the integration of satellite altimetry and moored and drifting buoy data has become increasingly crucial for enhancing our understanding and forecasting of oceanographic and atmospheric conditions. This study presents our latest advancements in developing an ensemble-based data assimilation scheme that incorporates satellite altimetry data along with in situ buoy measurements of significant wave height and 10-meter winds. The primary novelty of our approach lies in the coupled analysis of wind and wave fields, offering a more holistic representation of the marine environment.

Our ensemble-based methodology effectively integrates the spatially expansive satellite observations with the localized, high-resolution data from buoys. By doing so, we address the inherent challenges of spatial and temporal variability in oceanographic and atmospheric processes. The coupled wind-wave analysis not only enhances the accuracy of each field's estimates but also provides critical insights into their interdependencies, which are often overlooked in traditional uncoupled models.

Our scheme intends to improve the accuracy of both wind and wave field forecasts, as validated against independent observations and compared with the NOAA’s 3-DRTMA. The findings offer the potential of ensemble-based data assimilation for advancing coupled ocean-atmosphere modeling, with implications for improving weather forecasts, maritime safety, and climate studies.