Record Details
Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey II : R/V Wecoma cruise W0108A, 6-25 August 2001
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey II : R/V Wecoma cruise W0108A, 6-25 August 2001 |
| Names |
Pierce, Stephen D.
(creator) Barth, John A. (creator) Oregon State University. College of Oceanic and Atmospheric Sciences (creator) Coastal Ocean Advances in Shelf Transport (Project) (creator) |
| Date Issued | 2002 (iso8601) |
| Internet Media Type | application/pdf |
| Abstract | We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on R/V Wecoma during cruise W0108a (6-25 August 2001). The cruise was a component (Survey II) of the Coastal Ocean Advances in Shelf Transport (COAST) experiment. The ADCP was an RD Instruments hull-mounted 153-kHz narrowband unit. Data were collected nearly continuously using an ensemble averaging interval of 1 min and a vertical bin length of 8 m. This implies an inherent short-term random uncertainty of 2 cm/s for each data point; this uncertainty is reduced with additional space or time averaging. To reference the velocities to earth coordinates, we used GPS navigation in combination with the ship's gyrocompass and a GPS attitude system. Our processing methods are generally standard ones, primarily making using of the CODAS software package as described at http://ilikai.soest.hawaii.edu/sadcp. Overall ADCP data quality for the cruise was excellent. To produce the vector maps here, we applied 5 km spatial averaging. For the sections, we contoured using a two-pass Barnes method with horizontal (vertical) smoothing of 5 km (24 m) and 2.5 km (12 m) for the first and second passes. An online version of this report is available at http://damp.coas.oregonstate.edu/coast/adcp. In addition, the complete data set and all processing details are available from the NODC Joint Archive for Shipboard ADCP: http://ilikai.soest.hawaii.edu/sadcp. A cruise narrative is included in the companion Seasoar data report at http://damp.coas.oregonstate.edu/coast/seasoar. This work was funded by National Science Foundation grant OCE-9907854. |
| Genre | Technical Report |
| Topic | Ocean currents -- Oregon -- Pacific Coast -- Observations |
| Identifier | http://hdl.handle.net/1957/8156 |
