Sea level variability due to meteorological forcing in the Northeast Gulf of St. Lawrence

Garrett, C; Toulany, B

doi:10.1029/JC087iC03p01968

Title: Sea level variability due to meteorological forcing in the Northeast Gulf of St. Lawrence

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Abstract

In an attempt to understand the causes of low frequency flow through the Strait of Belle Isle, we relate sea level data from four stations in the northeast Gulf of St. Lawrence to meteoroligical forcing. Our main tool is a multiple regression, at each frequency, of sea level on local atmospheric pressure and two orthogonal large scale pressure gradients which represent geostropic winds. The results shown in inverted barometer response to atmospheric pressure and a frequency-dependent response to wind which can be tentatively interpreted in terms of coastal setup due to wind driven longshore currents, or barotropic setup of semi-enclosed regions (such as the northeast Gulf or the whole Gulf). A simple model for barotropic flow through the Strait is developed in order to provide an estimate, from data at the western end of the Strait, of sea level changes on the Labrador shelf.

Authors:: Garrett, C; Toulany, B

Publication Date:: Sat Mar 20 00:00:00 EST 1982

Research Org.:: Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J1

OSTI Identifier:: 5454003

Resource Type:: Journal Article

Journal Name:: J. Geophys. Res.; (United States)

Additional Journal Information:: Journal Volume: 87:C3

Country of Publication:: United States

Language:: English

Subject:: 58 GEOSCIENCES; ST LAWRENCE RIVER; SEA LEVEL; COASTAL WATERS; FREQUENCY DEPENDENCE; PRESSURE DEPENDENCE; PRESSURE GRADIENTS; REGRESSION ANALYSIS; WIND; LEVELS; MATHEMATICS; RIVERS; STATISTICS; STREAMS; SURFACE WATERS; 580500* - Oceanography- (1980-1989)

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                    Garrett, C, and Toulany, B. Sea level variability due to meteorological forcing in the Northeast Gulf of St. Lawrence.  United States: N. p., 1982. 
        Web.  doi:10.1029/JC087iC03p01968.

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                    Garrett, C, & Toulany, B. Sea level variability due to meteorological forcing in the Northeast Gulf of St. Lawrence.  United States.  https://doi.org/10.1029/JC087iC03p01968

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                    Garrett, C, and Toulany, B. 1982.  
        "Sea level variability due to meteorological forcing in the Northeast Gulf of St. Lawrence".  United States.  https://doi.org/10.1029/JC087iC03p01968.

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@article{osti_5454003,

  title        = {Sea level variability due to meteorological forcing in the Northeast Gulf of St. Lawrence},

  author       = {Garrett, C and Toulany, B},

  abstractNote = {In an attempt to understand the causes of low frequency flow through the Strait of Belle Isle, we relate sea level data from four stations in the northeast Gulf of St. Lawrence to meteoroligical forcing. Our main tool is a multiple regression, at each frequency, of sea level on local atmospheric pressure and two orthogonal large scale pressure gradients which represent geostropic winds. The results shown in inverted barometer response to atmospheric pressure and a frequency-dependent response to wind which can be tentatively interpreted in terms of coastal setup due to wind driven longshore currents, or barotropic setup of semi-enclosed regions (such as the northeast Gulf or the whole Gulf). A simple model for barotropic flow through the Strait is developed in order to provide an estimate, from data at the western end of the Strait, of sea level changes on the Labrador shelf.},

  doi          = {10.1029/JC087iC03p01968},

  url          = {https://www.osti.gov/biblio/5454003},
  journal      = {J. Geophys. Res.; (United States)},
number       = ,

  volume       = 87:C3,

  place        = {United States},

  year         = {Sat Mar 20 00:00:00 EST 1982},

  month        = {Sat Mar 20 00:00:00 EST 1982}

}

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