THE INFLUENCE OF COASTAL FRONTS ON THE MOVEMENT AND DISPERSION OF OIL SLICKS

The author has identified the following significant results. LANDSAT, aircraft and boats were used successfully to study estuarine and coastal fronts or boundaries. Fronts are a major hydrographic feature in Delaware Bay and in other estuaries Horizontal salinity gradients of 4% in one meter and convergence velocities of the order of 0.1 m/sec were observed. Visibility improved from one meter to two meters as certain boundaries were crossed. Fronts near the mouth of the bay are associated with the tidal exchange with shelf water. The formation of fronts in the interior of the bay appears to be associated with velocity shears induced by differences in bottom topography with horizontal density difference in the deep water portion of the estuary. Surface slicks and foam collected at frontal convergence zones near boundaries were found to contain concentrations of Cr, Cu, Fe, Hg, Pb, and Zn higher by two to four orders of magnitude than concentrations in mean ocean water.

  • Supplemental Notes:
    • See also report NASA-CR-146334, "The Influence of Coastal Fronts on the Movement and Dispersion of Oil Slicks," NTIS E76-10223.
  • Corporate Authors:

    University of Delaware, Newark

    College of Marine Studies
    Newark, DE  United States  19716
  • Authors:
    • Klemas, V
    • Davis, G
    • Kuperman
  • Publication Date: 1975-10-25

Media Info

  • Pagination: 2 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00134609
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-CR-145581
  • Contract Numbers: NAS5-20983
  • Files: TRIS
  • Created Date: Jun 9 1976 12:00AM