Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 ...

• Main Authors: Cisewski, Boris, Strass, Volker H, Rhein, Monika, Krägefsky, Sören
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2010
• Subjects: Antarc*; Antarctica; Lazarev Sea; Weddell Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.860565; https://doi.pangaea.de/10.1594/PANGAEA.860565

Ten-month time series of mean volume backscattering strength (MVBS) and vertical velocity obtained from three moored acoustic Doppler current profilers (ADCPs) deployed from February until December 2005 at 64°S, 66.5°S and 69°S along the Greenwich Meridian were used to analyse the diel vertical zooplankton migration (DVM) and its seasonality and regional variability in the Lazarev Sea. The estimated MVBS exhibited distinct patterns of DVM at all three mooring sites. Between February and October, the timing of the DVM and the residence time of zooplankton at depth were clearly governed by the day-night rhythm. Mean daily cycles of the ADCP-derived vertical velocity were calculated for successive months and showed maximum ascent and descent velocities of 16 and -15 mm/s. However, a change of the MVBS pattern occurred in late spring/early austral summer (October/November), when the zooplankton communities ceased their synchronous vertical migration at all three mooring sites. Elevated MVBS values were then ... : Supplement to: Cisewski, Boris; Strass, Volker H; Rhein, Monika; Krägefsky, Sören (2010): Seasonal variations of diel vertical migration of zooplankton from ADCP backscatter time series data in the Lazarev Sea, Antarctica. Deep Sea Research Part I: Oceanographic Research Papers, 57(1), 78-94 ...