Application of acoustic-doppler current profiler and expendable bathythermograph measurements to the study of the velocity structure and transport of the Gulf Stream
Joyce, Terrence M.
Dunworth, Jane A.
Schubert, David M.
Stalcup, Marvel C.
Barbour, R. Lorraine
MetadataShow full item record
KeywordEndeavor (Ship: 1976-) Cruise EN86; Endeavor (Ship: 1976-) Cruise EN88; Oceanography; Acoustic imaging
We have addressed the degree to which Acoustic-Doppler Current Profiler (ADCP) and expendable bathythermograph (XBT) data can provide quantitative measurements of the velocity structure and transport of the Gulf Stream. An algorithm has been used to generate salinity from temperature and depth using an historical Temperature/Salinity relation for the NW Atlantic . Results have been simulated using CTD data and comparing real and pseudo salinity files. Errors are typically less than 2 dynamic cm for the upper 800 rn out of a total signal of 80 cm (across the Gulf Stream). When combined with ADCP data for a near-surface reference velocity, transport errors in isopycnal layers are less than about 1 Sv (106 rn3 /s), as is the difference in total transport for the upper 800 rn between real and pseudo data . The method is capable of measuring the real variability of the Gulf Stream, and when combined with altimeter data, can provide estimates of the geoid slope with oceanic errors of a few parts in 108 over horizontal scales of 500 krn .
Showing items related by title, author, creator and subject.
Acoustic and oceanographic observations and configuration information for the WHOI moorings from the SW06 experiment Newhall, Arthur E.; Duda, Timothy F.; von der Heydt, Keith; Irish, James D.; Kemp, John N.; Lerner, Steven A.; Liberatore, Stephen P.; Lin, Ying-Tsong; Lynch, James F.; Maffei, Andrew R.; Morozov, Andrey K.; Shmelev, Alexey A.; Sellers, Cynthia J.; Witzell, Warren E. (Woods Hole Oceanographic Institution, 2007-05)This document describes data, sensors, and other useful information pertaining to the moorings that were deployed from the R/V Knorr from July 24th to August 4th, 2006 in support of the SW06 experiment. The SW06 experiment ...
Alessi, Carol A.; Beardsley, Robert C.; Caruso, Michael J.; Churchill, James H.; Irish, James D.; Lentz, Steven J.; Limeburner, Richard; Werner, R.; Weller, Robert A.; Williams, Albert J.; Williams, W.; Manning, James P.; Smith, P. (Woods Hole Oceanographic Institution, 2001-08)The 1995 Geoges Bank Stratification Study (GBSS) was the first intensive process study conducted as part of the U.S. GLOBEC Northwest Atlantic/Georges Bank field program. The GBSS was designed to investigate the physical ...
Martin Traykovski, Linda V. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1998-02)Work on the forward problem in zooplankton bioacoustics has resulted in the identification of three categories of acoustic scatterers: elastic-shelled (e.g. pteropods), fluid-like (e.g. euphausiids), and gas-bearing (e.g. ...