September 12, 2025Remote SensingOpen Access

Assessing the Performance of GNSS-IR for Sea Level Monitoring During Hurricane-Induced Storm Surges

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GNSS-IR achieves about 7 cm accuracy under normal conditions but degrades to decimeter-level during storm surges.
Multi-GNSS observations improve temporal resolution, with valid periods of 83% to 97% compared to single-system observations.
CALC station provides higher precision due to better water reflection environment than FLCK station.
Dynamic sea level variations correlate with hurricane trajectories, affecting GNSS-IR accuracy.

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This analysis assesses GNSS-IR accuracy during storm surges in hurricanes, suggesting implications for sea level monitoring.

Zhang et al. (2025) studied this question.

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