||A comparison of the MESA-Puget Sound oil spill model with wind and current observations from August 1978 /
Stewart, Robert J. ;
Pease, Carol H.
||National Oceanic and Atmospheric Administration, Seattle, WA. Pacific Marine Environmental Lab.;Environmental Protection Agency, Washington, DC. Office of Environmental Engineering and Technology.
|| Pacific Marine Environmental Laboratory, Environmental Research Laboratories, National Oceanic and Atomospheric Administration,
Oil spills--Juan de Fuca, Strait--Mathematical models. ;
Ocean circulation--Juan de Fuca (Strait)
Ocean currents ;
Air water interactions ;
Oil pollution ;
Juan de Fuca Strait ;
Mathematical models ;
Ocean tides ;
Density(Mass/volume) pressure ;
Sea water ;
Oil spills ;
MESA project ;
Baroclinic waves ;
||Region 9 Library/San Francisco,CA
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||vii, 54 pages : illustrations ; 28 cm
This report compares the winds and currents observed in August, 1978 in the Strait of Juan de Fuca with simulated wind and current fields taken from the MESA-Puget Sound oil spill model. This model is described in a companion report, Pease (1980). A method is developed for relating these errors in velocity to uncertainties in predicted position. The tidal current subprogram of the oil spill model is shown to reduce the uncertainty in trajectory position by an amount that is somewhere in the range of 50% to 90% of the total uncertainty that can be caused by ignorance of the tides. It is also shown that the uncertainty in trajectory position is strongly affected by our inability to predict the baroclinic motions in the region. Over small times, less than 10 hours, the dispersion is mainly tidal, and the tidal current subprogram contributes importantly to the prediction of position.
"EPA-600/7-80-168." "October 1980" Includes bibliographical references (pages 32-33).