On the Problem of Modeling the Boat Wake Climate: The Florida Intracoastal Waterway

Forlini, Carola; Qayyum, Rizwan; Malej, Matt; Lam, Michael‐Angelo Y.‐H.; Shi, Fengyan; Angelini, Christine; Sheremet, Alex

doi:10.1029/2020JC016676

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On the Problem of Modeling the Boat Wake Climate: The Florida Intracoastal Waterway

2021
By Forlini, Carola ; Qayyum, Rizwan ; Malej, Matt ; ...
Source: Journal of Geophysical Research: Oceans, 126, e2020JC016676

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Journal Title:

Journal of Geophysical Research: Oceans
Personal Author:

Forlini, Carola ; Qayyum, Rizwan ; Malej, Matt ; Lam, Michael‐Angelo Y.‐H. ; Shi, Fengyan ; ... More +

Forlini, Carola ; Qayyum, Rizwan ; Malej, Matt ; Lam, Michael‐Angelo Y.‐H. ; Shi, Fengyan ; Angelini, Christine ; Sheremet, Alex Less -
NOAA Program & Office:

NOS (National Ocean Service) ; OCM (Office for Coastal Management)

NOS (National Ocean Service) ; OCM (Office for Coastal Management) Less -
Description:

Quantifying and forecasting the impact of boat traffic on the health of coastal ecosystems must account for the multiscale nature of the process: from minutes (individual wakes), to days (tidal phase), weeks, and longer (tide modulation, seasonal traffic). Direct numerical simulations covering all these scales are difficult, not in the least because specifying the vessel type and navigation characteristics for every wake is practically impossible. To overcome this problem, we propose a statistical-mechanics description of the wake field that focuses on classes of wakes, defined by a set of characteristic parameters, and their joint probability density in the characteristic-parameter space. Here, we demonstrate the first steps of the approach using existing numerical tools and parametrizations. Because vessel type and navigation characteristics are not available, an investigation of wake parameter space is not possible at this time. Instead, we use the leading-order Froude-number parametrization defined by a linear model to classify the wake population observed during the field experiment. Numerical tests applying the FUNWAVE-TVD model across all wake-classes identified show excellent skills for weakly dispersive wakes. The model is challenged by the short waves generated by small, slow boats. However, simulations suggest that the problem is confined to the deeper water domain and linear evolution. Nonlinear wake shoaling, essential for modeling wake-induced sediment transport and wake impact on the environment, is described well.
Keywords:

[+]

Coastal Ecology Mathematical Models Boat Wakes Urbanized Coastal Waters
Source:

Journal of Geophysical Research: Oceans, 126, e2020JC016676
DOI:

https://doi.org/10.1029/2020JC016676
Document Type:

Journal Article
Funding:

Grant no. NA14NOS4190145
Place as Subject:

Florida
Rights Information:

Other
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Submitted
Main Document Checksum:

[+]

urn:sha256:420943c1b42646d46b49b1ad73a100b282cc9efb6b251b2c52062b27c90d45c5
Download URL:

https://repository.library.noaa.gov/view/noaa/34004/noaa_34004_DS1.pdf
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[PDF-8.79 MB]