Observations of the California Countercurrent
Harrod, Robert L.
Wickham, Jacob B.
MetadataShow full item record
Results from moored current meters, 150 - 350 m, are discussed for a region over the continental slope off Cape San Martin, California from January 1979 to April 1980. Current vector time series were constructed from the data and compared to a local upwelling index . Progressive vector diagrams of the data were also constructed, and spectrum analysis was performed for alongshore and cross-slope currents. The California Countercurrent was found to be present in the study area during the entire period. Seasonally, the countercurrent was substantially stronger during the spring. Frequent current reversals and oscillations occurred between equatorward and poleward flow, less often at the nearshore station. Preferred low frequency energy peaks were found at periods of about 10 days. The intensity of the countercurrent increased with increasing coastal upwelling index, and the cross-slope flow also appeared to be related to the local coastal upwelling index.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Geostrophic Circulation in the Tropical North Pacific Ocean Based on Argo Profiles Yuan, Dongliang; Zhang, Zhichun; Chu, Peter C.; Dewar, William K. (American Meteorological Society, 2014);Absolute geostrophic currents in the North Pacific Ocean are calculated from the newly gridded Argo profiling float data using the P-vector method for the period of 2004–11. The zonal geostrophic currents based on the ...
A Numerical Study of the Response of an Idealized Ocean to Large-Scale Surface Heat and Momentum Flux Haney, Robert L. (1974-04);A numerical model of a 6-level, baroclinic ocean with a fiat bottom and a regular coast line extending from 51.25S to 48.75N is integrated over 125 years of simulated time using a finite-difference analog of the primitive ...
A Large-Scale Seasonal Modeling Study of the California Current System Batteen, Mary L.; Cipriano, Nicholas J.; Monroe, James T. (2003);A high-resolution, multi-level, primitive equation ocean model has been used to investigate the combined role of seasonal wind forcing, seasonal thermohaline gradients, and coastline irregularities on the formation of ...