Daniel Wehner, Sergius Dell, Adrian J. Neumann, Jann Wendt, MARISPACE-X: DIGITALIZING THE OCEAN, The International Hydrographic Review, Volume 28, 2022, Pages 76-93, https://doi.org/10.58440/ihr-28-a10 (https://ihr.iho.int/articles/marispace-x-digitalizing-the-ocean-the-future-of-maritime-data-in-the-european-federated-data-infrastructure-gaia-x/), Abstract: Within the Marispace-X project, a digital maritime data space based on data sovereignty, security, interoperability, and modularity according to the Gaia-X concept should be created. The article provides an overview of the envisioned Marispace-X digital infrastructure, a decentralized maritime data ecosystem, followed by exemplary applications for hydrographic surveys and some of the use cases defined in the Marispace-X project. These exemplary applications are related to data management, sharing and processing services that can be performed on a cloud infrastructure. This digital infrastructure should simplify data handling of all the different data types and formats that exist in the maritime domain., Keywords: Cloud Infrastructure, Data Management, Decentralization, Digital Ecosystem, Gaia-X, Geoparquet, Maritime Data, Open-source