Sea surface temperature variability in the shelf‐slope region of the Northwest Atlantic

Thompson, Keith R.; Loucks, Ronald H.; Trites, R. W.

doi:10.1080/07055900.1988.9649304

Cited by 40 publications

(51 citation statements)

References 18 publications

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“…S11). These scales are comparable to those of climate forcing in the NWA and NEA (22)(23)(24)(29)(30)(31). Thus, these analyses reveal that, contrary to the prevailing assumption (2,16,17), the scales of fishing mortality are equivalent to those of atmosphere-ocean forcing, and could account for a significant portion of the large-scale synchrony that prevails in these cod stocks.…”

Section: Significancementioning

confidence: 76%

“…In sharp contrast to the unimodal distribution of the fishing mortality to which these NWA cod stocks were subjected, and to its corresponding effect on SSB, NWA sea surface (22) and bottom (23) temperatures were characterized by a strong bimodal spatial distribution, the boundary separating positive and negative temperature anomalies being located on the northeast Scotian Shelf (stock 4) (Fig. 1A).…”

Section: Significancementioning

confidence: 97%

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Large scale, synchronous variability of marine fish populations driven by commercial exploitation

Frank

Petrie

Leggett

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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Synchronous variations in the abundance of geographically distinct marine fish populations are known to occur across spatial scales on the order of 1,000 km and greater. The prevailing assumption is that this large-scale coherent variability is a response to coupled atmosphere–ocean dynamics, commonly represented by climate indexes, such as the Atlantic Multidecadal Oscillation and North Atlantic Oscillation. On the other hand, it has been suggested that exploitation might contribute to this coherent variability. This possibility has been generally ignored or dismissed on the grounds that exploitation is unlikely to operate synchronously at such large spatial scales. Our analysis of adult fishing mortality and spawning stock biomass of 22 North Atlantic cod (Gadus morhua) stocks revealed that both the temporal and spatial scales in fishing mortality and spawning stock biomass were equivalent to those of the climate drivers. From these results, we conclude that greater consideration must be given to the potential of exploitation as a driving force behind broad, coherent variability of heavily exploited fish species.

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Section: Significancementioning

confidence: 76%

Section: Significancementioning

confidence: 97%

Large scale, synchronous variability of marine fish populations driven by commercial exploitation

Frank

Petrie

Leggett

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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“…Significant efforts have been made in the past to determine the general circulation, hydrographic distributions and associated seasonal variability of the ECS (Smith and Schwing, 1991;Lynch et al, 1996;Sheng and Thompson, 1996;Colbourne et al, 1997;Loder et al, 1998;Xue et al, 2000;Sheng et al, 2001;Han and Loder, 2003;Han et al, 2008). Efforts have also been made to examine the interannual variability over this region (Thompson et al, 1988; Petrie et al, 1992;Petrie and Drinkwater, 1993;Han and Tang, 2001;Han, 2007). Many questions, however, remain unanswered regarding the general circulation and associated temporal and spatial variability over the region.…”

Section: Introductionmentioning

confidence: 99%

“…1a). Previous studies have demonstrated that the ECS is the most variable area of the North Atlantic and Pacific oceans (Thompson et al, 1988), with the largest seasonal variations in water temperature, about 16°C, occurring over the Scotian Shelf and the Middle Atlantic Bight. Significant efforts have been made in the past to determine the general circulation, hydrographic distributions and associated seasonal variability of the ECS (Smith and Schwing, 1991;Lynch et al, 1996;Sheng and Thompson, 1996;Colbourne et al, 1997;Loder et al, 1998;Xue et al, 2000;Sheng et al, 2001;Han and Loder, 2003;Han et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Interannual Variability of the Circulation over the Eastern Canadian Shelf

Urrego-Blanco

Jiang

2012

Atmosphere-Ocean

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This study examines the main physical processes affecting the interannual variability of circulation over the eastern Canadian continental shelf (ECS) based on numerical circulation results for the period [1988][1989][1990][1991][1992][1993][1994][1995][1996][1997][1998][1999][2000][2001][2002][2003][2004] produced by a regional ocean-ice model. The regional circulation model is applied to the northwest Atlantic and uses a horizontal curvilinear grid with a horizontal resolution of approximately 1/4°. The model is forced by atmospheric reanalysis fields produced by Large and Yeager (2004) and boundary forcing based on the ocean reanalysis data produced by Smith et al. (2010). In comparison with previous observational and numerical results in the literature, the regional circulation model has reasonable skill in simulating the large-scale circulation and associated seasonal and interannual variability over the ECS. Complex Empirical Orthogonal Function (CEOF) analysis is used to examine the interannual variability in the monthly mean temperature and salinity anomalies in the model. The CEOF analysis of model results demonstrates that the interannual variability over the Labrador and northern Newfoundland shelves is significantly affected by the variability at high latitudes which propagates onto these shelves through the northern open boundary. Over the eastern Newfoundland Shelf, the interannual variability is significantly affected by the non-linear interaction of the Labrador Current with the North Atlantic Current and by the variability propagating from the southern Labrador Shelf. The interannual variability of circulation and hydrography over the Slope Water region off the Scotian Shelf is significantly affected by anomalies advected by the Gulf Stream and by the non-linear dynamics taking place in the deep waters to the south of the Tail of the Grand Banks. (2010). Comparativement aux résultats observationnels et numériques précédents que l'on trouve dans la littérature, le modèle de circulation régional possède une habileté raisonnable pour la simulation de la circulation à grande échelle et de la variabilité saisonnière et interannuelle associée sur l'ECS. Nous utilisons l'analyse par fonctions orthogonales empiriques complexes (CEOF) pour examiner la variabilité interannuelle des anomalies mensuelles moyennes de température et de salinité dans le modèle. L'analyse par CEOF des résultats du modèle montre que la variabilité interannuelle sur les plateaux du Labrador et du nord de Terre-Neuve est significativement influencée par la variabilité aux hautes latitudes qui se propage sur ces plateaux à travers la limite nord ouverte. Sur le plateau de l'est de Terre-Neuve, la variabilité interannuelle est significativement influencée par l'interaction non linéaire du courant du Labrador avec le courant de l'Atlantique Nord et par la variabilité se propageant depuis le plateau du sud du Labrador. La variabilité interannuelle de la circulation et de l'hydrographie dans la région du talus continental au ...

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“…The sea surface temperature (SST) over the study region has a strong seasonal cycle, with a mean range of about 16°C (Thompson, Loucks and Trites, 1988), largely due to the intense negative and positive heat fluxes at the sea surface from the atmosphere to the ocean in winter and summer respectively. The interannual and decadal variability of temperature and salinity on the SS is affected significantly by variations of the westward transport of the Labrador Current through the shelf-slope exchange (Petrie and Drinkwater, 1993).…”

Section: Introductionmentioning

confidence: 99%

Assessing the performance of a multi-nested ocean circulation model using satellite remote sensing and in situ observations

Shan¹,

Jiang²,

Ohashi³

et al. 2023

som

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Assessing the performance of a multi-nested ocean circulation model using satellite remote sensing and in situ observations. © 2016 Shiliang Shan et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. 39 RESEARCH ARTICLEAssessing the performance of a multi-nested ocean circulation model using satellite remote sensing and in situ observations

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Sea surface temperature variability in the shelf‐slope region of the Northwest Atlantic

Cited by 40 publications

References 18 publications

Large scale, synchronous variability of marine fish populations driven by commercial exploitation

Large scale, synchronous variability of marine fish populations driven by commercial exploitation

Interannual Variability of the Circulation over the Eastern Canadian Shelf

Assessing the performance of a multi-nested ocean circulation model using satellite remote sensing and in situ observations

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