Wind stress climatology in the South Atlantic Bight

Blanton, Jackson O.; Schwing, Franklin B.; Weber, A.H.; Pietrafesa, Leonard J.; Hayes, D. W.

doi:10.1029/co002p0010

Cited by 19 publications

(13 citation statements)

References 15 publications

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“…Circulation on the inner-shelf (from the coast to the 20 m isobath) is dominated by river discharge, atmospheric fluxes and tides; while on the mid-shelf (from the 20 to 45 m isobaths) circulation is driven primarily by the winds and influenced by the tides and the Gulf Stream; the outer-shelf is dominated by the Gulf Stream (Boicourt et al 1998). With the circulation over inner-and midshelf regions being driven by the winds, circulation patterns change seasonally with seasonal transitions in the winds (Blanton et al 1985, Blanton et al 2003.…”

Section: Methodsmentioning

confidence: 99%

Using 2-dimensional dispersal kernels to identify the dominant influences on larval dispersal on continental shelves

Edwards¹,

Hare²,

Werner³

et al. 2007

Mar. Ecol. Prog. Ser.

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Pelagic larval dispersal is thought to be the main mechanism connecting many marine populations and is an important determinant both of an individual's success and a population's distribution and spatial structure. Thus, quantitative estimates of the retention or dispersion of larvae from spawning grounds is important for the determination of recruitment success in fisheries. Models can be used to study connectivity through a dispersal curve or dispersal kernel: the probability that a larva will settle at a given distance from its release location. We applied a 3-dimensional circulation model and a Lagrangian particle tracking model to the southeast US continental shelf to describe dispersal kernels in 2 dimensions. We used a fully orthogonal design to assess the importance of factors that influence the dispersal kernel, including spawning time, spawning location, larval behavior (vertical position in the water column), larval duration, and turbulent dispersal. Our results indicate that adult behavior, in the form of spawning time and location, may be more important than larval behavior in determining larval dispersal on the inner-and mid-shelves in this region.KEY WORDS: Dispersal kernels · Larval fish · Lagrangian particle tracking · Southeast US continental shelf Resale or republication not permitted without written consent of the publisher

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Section: Methodsmentioning

confidence: 99%

Using 2-dimensional dispersal kernels to identify the dominant influences on larval dispersal on continental shelves

Edwards¹,

Hare²,

Werner³

et al. 2007

Mar. Ecol. Prog. Ser.

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“…This station is close to the centre of the model domain, hence minimizing the effect of spatial variation in the wind field over the south to north extent of the study site. In addition, studies of Weber and Blanton (1980) and Blanton et al . (1989 ) show the winds to be correlated and coherent over the extent of our study site.…”

Section: Introductionmentioning

confidence: 99%

Physical oceanography of the North Carolina continental shelf during the fall and winter seasons: implications for the transport of larval menhaden

Werner

Blanton

Quinlan

et al. 1999

Fisheries Oceanography

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The circulation over the continental shelf off the southern Middle Atlantic Bight (MAB) and northern South Atlantic Bight (SAB) is examined for the fall and winter periods. Observational data are compared with results from a three‐dimensional numerical model to identify the dominant processes on the shelf. By considering wind‐forcing, tides, and a specified upstream inflow (into the MAB), the observed and modelled flow fields are in close agreement in the mid‐ and inner shelf regions. The resulting larval drift indicates a seasonal dependence of transport pathways from spawning grounds to estuarine nursery areas for menhaden larvae and other offshore‐spawning estuarine‐dependent fish. Specifically, the physical oceanography of the MAB and SAB during the fall and winter months suggests a north‐to‐south shift in spawning areas providing recruits to the Carolina estuaries, in agreement with the observed migration of the spawning populations.

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“…The bay is characterized as a mixed-to wave-dominated energy environment, with a tidal range o2 m and mean nearshore wave heights between 1.2 and 1.3 m (Hayes, 1994). Winds within Long Bay vary seasonally, but yearly averages show that winds generally align with the southwest/northeast orientation of the coast (Blanton et al, 1985;Brown, 1977). Northerly winds dominate in the fall and winter, and during the spring and summer south and southwest winds prevail (Blanton et al, 1985;Brown, 1977).…”

Section: Coastal Morphologymentioning

confidence: 99%

“…Winds within Long Bay vary seasonally, but yearly averages show that winds generally align with the southwest/northeast orientation of the coast (Blanton et al, 1985;Brown, 1977). Northerly winds dominate in the fall and winter, and during the spring and summer south and southwest winds prevail (Blanton et al, 1985;Brown, 1977). Wind direction influences wave approach along this coastline.…”

Section: Coastal Morphologymentioning

confidence: 99%

Holocene sediment distribution on the inner continental shelf of northeastern South Carolina: Implications for the regional sediment budget and long-term shoreline response

Denny

Schwab

Baldwin

et al. 2013

Continental Shelf Research

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a b s t r a c tHigh-resolution geophysical and sediment sampling surveys were conducted offshore of the Grand Strand, South Carolina to define the shallow geologic framework of the inner shelf. Results are used to identify and map Holocene sediment deposits, infer sediment transport pathways, and discuss implications for the regional coastal sediment budget.The thickest deposits of Holocene sediment observed on the inner shelf form shoal complexes composed of moderately sorted fine sand, which are primarily located offshore of modern tidal inlets. These shoal deposits contain $ 67 M m 3 of sediment, approximately 96% of Holocene sediment stored on the inner shelf. Due to the lack of any significant modern fluvial input of sand to the region, the Holocene deposits are likely derived from reworking of relict Pleistocene and older inner-shelf deposits during the Holocene marine transgression. The Holocene sediments are concentrated in the southern part of the study area, due to a combination of ancestral drainage patterns, a regional shift in sediment supply from the northeast to the southwest in the late Pleistocene, and proximity to modern inlet systems. Where sediment is limited, only small, low relief ridges have formed and Pleistocene and older deposits are exposed on the seafloor. The low-relief ridges are likely the result of a thin, mobile veneer of sediment being transported across an irregular, erosional surface formed during the last transgression. Sediment textural trends and seafloor morphology indicate a long-term net transport of sediment to the southwest. This is supported by oceanographic studies that suggest the long-term sediment transport direction is controlled by the frequency and intensity of storms that pass through the region, where low pressure systems yield net along-shore flow to the southwest and a weak onshore component.Current sediment budget estimates for the Grand Strand yield a deficit for the region. Volume calculations of Holocene deposits on the inner shelf suggest that there is sufficient sediment to balance the sediment budget and provide a source of sediment to the shoreline. Although the processes controlling cross-shelf sediment transport are not fully understood, in sediment-limited environments such as the Grand Strand, erosion of the inner shelf likely contributes significant sediment to the beach system.Published by Elsevier Ltd.

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Wind stress climatology in the South Atlantic Bight

Cited by 19 publications

References 15 publications

Using 2-dimensional dispersal kernels to identify the dominant influences on larval dispersal on continental shelves

Using 2-dimensional dispersal kernels to identify the dominant influences on larval dispersal on continental shelves

Physical oceanography of the North Carolina continental shelf during the fall and winter seasons: implications for the transport of larval menhaden

Holocene sediment distribution on the inner continental shelf of northeastern South Carolina: Implications for the regional sediment budget and long-term shoreline response

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