September 10, 2025Remote SensingOpen Access

An Integrated Method for Dynamic Height Error Correction in GNSS-IR Sea Level Retrievals

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Our method reduces RMSE of GNSS-IR sea level retrievals by 42.1%, outperforming tidal analysis and cubic spline methods.
At HKQT, our method improves accuracy by 21.5% to 10.3 cm, indicating its efficiency in dynamic height error correction.
Combining tidal analysis with cubic spline fitting allows for better precision in sea level measurements under non-stationary conditions.
The method's effectiveness is validated during storm surge events, emphasizing its applicability in real-world scenarios.

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Proposed method improves sea level accuracy by 42.1% in GNSS-IR, indicating better precision in coastal monitoring.

Hu et al. (2025) studied this question.

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