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Oceanographic Observations, Hudson Shelf Valley, U.S. Geological Survey Open-File Report 02-217

Residual Flow


The vector mean current and the current ellipse (calculated from low-passed observations) at each station are plotted in plan view for the ADCP observations obtained at 15 m and near-bottom (bottom bin, see Table). In these figures the mean current is shown as a red arrow that originates at the station location (blue triangles) and points in the direction of the current flow. The length of the current arrow is proportional to the current magnitude; the scale has been chosen so that the length of the arrow is also the distance a water particle would travel in one day at map scale. The low-frequency current is plotted as an ellipse centered at the end of the current arrow. The vector mean wind stress and low-frequency wind stress ellipse are plotted in a similar format (in gray). The strength of the low-frequency fluctuations changes character about February 10, 2000 (see Time Series Plots). Figures are provided for the entire deployment period (December 1999 to April 2000), and for the period December 1999 to February 10, 2000, and for the period February 10, 2000 to April 2000.

Time period: Entire deployment

Mean current and low-frequency current ellipse at 15 m

Near-bottom mean current and low-frequency current ellipse

Time period: Beginning of deployment to February 10, 2000

Mean current and low-frequency current ellipse at 15 m

Near-bottom mean current and low-frequency current ellipse

Time period: February 10, 2000 to end of deployment

Mean current and low-frequency current ellipse at 15 m

Near-bottom current and low-frequency current ellipse

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Title Page / Contents / Tables / Figures / Abbreviations / Introduction / Field Program / Observations / Instrumentation / Data Processing / Fouling / Mooring/Data File ID / Results / Digital Data / Acknowledgements / References / Matlab / Supplementary / Metadata
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