The Cryosphere
The Cryosphere
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Articles | Volume 19, issue 10
Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4555-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-4555-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 10
Research article
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 | 
15 Oct 2025
Research article | Highlight paper |  | 15 Oct 2025

TICOI: an operational Python package to generate regular glacier velocity time series

Laurane Charrier, Amaury Dehecq, Lei Guo, Fanny Brun, Romain Millan, Nathan Lioret, Luke Copland, Nathan Maier, Christine Dow, and Paul Halas

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Latest update: 15 Oct 2025
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Co-editor-in-chief
This study has the potential to facilitate information flow from Earth observations to geophysical models with particular focus on seasonally relevant glacier evolution processes. This has great value for downstream users and will be a substantial improvement to our treatment of ice velocity timeseries.
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Short summary
While global annual glacier velocities are openly accessible, sub-annual velocity time series are still lacking. This hinders our ability to understand flow processes and the integration of these observations in numerical models. We introduce an open source Python package called TICOI (Temporal Inversion using linear Combinations of Observations, and Interpolation) to fuse multi-temporal and multi-sensor image-pair velocities produced by different processing chains to produce standardized sub-annual velocity products.
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