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Article analysis:

The article is generally reliable and trustworthy, as it provides a comprehensive overview of satellite-derived bathymetry (SDB) with multispectral satellites, its application to two case studies, and its potential benefits when sediment classification information is taken into account. The authors provide detailed descriptions of their methodology, results, and conclusions, which are supported by relevant literature citations throughout the paper. Furthermore, they acknowledge potential limitations of their approach such as the need for field-measured bathymetric data for calibration in remote regions where such data are unavailable.

However, there are some points that could be further explored or discussed more thoroughly. For example, while the authors mention that SDB has certain spatial resolution and coverage limitations compared to other methods such as airborne LiDAR bathymetry (ALB), they do not provide any specific details about these limitations or how they might affect the accuracy of SDB results. Additionally, while they discuss potential benefits from considering sediment classification information when using SDB models, they do not explore any possible risks associated with this approach or how it might impact accuracy if done incorrectly or incompletely. Finally, while they present their findings from two case studies in detail, it would be beneficial to have a more general discussion about how these findings might apply to other similar scenarios or environments beyond those studied here.