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ESS Open Archive




Numerous recent studies found significant correlations between weakening of the Gulf Stream (GS) and rising coastal sea level (CSL) along the U.S. East Coast. Based on monthly altimeter data and Florida Current transport, Chi et al. (2023; here, CH23) argued that geostrophic adjustment of the GS is unlikely to drive variations in CSL in the Mid-Atlantic Bight (MAB). It is argued here that this conclusion cannot be universally applicable to all cases, since the monthly data disregard correlations previously found for short time scales based on hourly and daily data; the impact of GS variability on time scales of decades and longer as well as potential time lags between the GS and CSL variability were also not considered by CH23. Examples are given here to demonstrate the important role of the GS in post hurricane coastal flooding.


© 2023 Tal Ezer.

The copyright holder for this preprint is the author/funder. All rights reserved. No further reuse allowed without permission.

Data Availability

Article states: "The hourly tide gauges sea level data are available from: (, and the daily Florida Current transport data are available from:".

Original Publication Citation

Ezer, T. (2023). Comments on “Reconsidering the relationship between Gulf Stream transport and dynamic sea level at U.S. East Coast” by Chi et al. ESS Open Archive, 1-10.


0000-0002-2018-6071 (Ezer)


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