Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 18, issue 6
Articles | Volume 18, issue 6
https://doi.org/10.5194/essd-18-4155-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-4155-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 6
Data description article
 | 
18 Jun 2026
Data description article |  | 18 Jun 2026

PolyU2025 SLA: a global 0.25°  ×  0.25° monthly sea-level anomaly dataset (1993–2024) determined from satellite altimetry for sea-level and climate change research

Jiajia Yuan, Jianli Chen, and Dongju Peng

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Short summary
In this study, we present a new global monthly gridded sea level anomaly dataset for sea-level and climate change research. The dataset is produced using a fully independent data-processing framework and is based on measurements from at least two satellites operating at the same time each month. Comparisons with existing global datasets and coastal measurements show close agreement in long-term sea level rise, while also revealing differences in regions with strong ocean variability.
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