Department of Interior -- U.S. Geological Survey -- Woods Hole Field Center -- Plot Index Page
Currents were measured with vector-measuring current meters (Weller and Davis, 1980) located 5 m below the sea surface and 10 m above the sea floor, and with a USGS tripod system with current sensors 1 m above the sea floor. In 1990 and 1991, the tripod current sensors were rotors and vanes like those used for vector averaging current meters. Starting in 1992, tripod systems used BASS acoustic current sensors (Williams, 1985).
Wind data were collected by the National Data Buoy Center. Wind stress was calculated from wind speed and direction measured at the large navigational buoy using the formulas of Large and Pond (1981).
Currents and wind stress were low-pass filtered using the PL33 filter (Flagg et al., 1976), which essentially removes all fluctuations having periods shorter than 33 hours.
This page is <URL:http://woodshole.er.usgs.gov/~fhotchki/caption_currents.html>.