Articles | Volume 28, issue 3
https://doi.org/10.5194/npg-28-295-2021
https://doi.org/10.5194/npg-28-295-2021
Research article
 | 
06 Jul 2021
Research article |  | 06 Jul 2021

Ensemble Riemannian data assimilation over the Wasserstein space

Sagar K. Tamang, Ardeshir Ebtehaj, Peter J. van Leeuwen, Dongmian Zou, and Gilad Lerman

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Latest update: 23 Mar 2023
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Short summary
Data assimilation aims to improve hydrologic and weather forecasts by combining available information from Earth system models and observations. The classical approaches to data assimilation usually proceed with some preconceived assumptions about the shape of their probability distributions. As a result, when such assumptions are invalid, the forecast accuracy suffers. In the proposed methodology, we relax such assumptions and demonstrate improved performance.