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Application of acoustic-doppler current profiler and expendable bathythermograph measurements to the study of the velocity structure and transport of the gulf stream
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dunworth, J. A. Barbour, R. L. Joyce, T. M. Stalcup, M. C. Schubert, D. M. |
| Copyright Year | 1988 |
| Description | 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 is addressed. An algorithm is 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 m 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 (10 to the 6th power cu m/s), as is the difference in total transport for the upper 800 m 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 10 to the 8th power over horizontal scales of 500 km. |
| File Size | 971432 |
| Page Count | 30 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880019221 |
| Archival Resource Key | ark:/13960/t2t48kp7k |
| Language | English |
| Publisher Date | 1988-08-01 |
| Access Restriction | Open |
| Subject Keyword | Oceanography Temperature Measurement Acoustic Measurement Algorithms Transport Properties Bathythermographs Simulation Gulf Stream Doppler Radar Velocity Distribution Depth Ocean Currents Salinity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
