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Logical data model for hydrographic data based on HY_Features concepts

OCG Public Engineering Report 25-045
Edited by: David L. Blodgett

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Abstract

This report describes background and design of the “hydrofabric data model” which defines logic for implementation of data schemas and software that deals with hydrologic geospatial data. As a “logical” data model, the hydrofabric data model specifies details necessary to support compatibility of data and software that satisfy diverse needs without unnecessarily restricting implementation details. The logic presented in this report is based on concepts defined in WaterML2 Part 3 Surface Hydrology Features Concepts and is designed to serve the needs of a range of hydroscience use cases.

Development of international community standards applicable to hydrofabrics began, prompted by the World Meteorological Organization Commission for Hydrology, in 2012 [5] . More than 10 years later, this report documents one aspect of a long-term research and development activity that traces its roots back that far.

This report describes terminology, use cases, and background as context preceding presentation of the logical model and discussion of its design. Three appendices document related data models, an example encoding of the hydrofabric data model, and an artificial schematic and tabular data example. The sections of the report can be accessed in the Clause 5 section.

Suggested Citation

2026, Logical data model for hydrographic data based on HY_Features concepts: OCG Public Engineering Report 25-045, v, 76 p.

Publication type Report
Publication Subtype Organization Series
Title Logical data model for hydrographic data based on HY_Features concepts
Series title OCG Public Engineering Report
Series number 25-045
Publication Date April 16, 2026
Year Published 2026
Language English
Publisher Open Geospatial Consortium
Contributing office(s) WMA - Integrated Modeling and Prediction Division
Description v, 76 p.
Additional publication details