Primary productivity, pulse amplitude modulated fluorometry and nutrient drawdown data from the marginal ice zone: BROKE-WEST survey 30o-80oE, 2006

• Other Authors: AADC (owner), AADC, DATA OFFICER (distributor), AADC, DATA OFFICER (custodian), AU/AADC > Australian Antarctic Data Centre, Australia (hasAssociationWith), Australian Antarctic Data Centre (publisher), Australian Antarctic Division (sponsor), WESTWOOD, KAREN JILLIAN (collaborator), WESTWOOD, KAREN JILLIAN (hasPrincipalInvestigator), WESTWOOD, KAREN JILLIAN (author), Westwood, K.J. (originator)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: environment; biota; oceans; EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON; NUTRIENTS; OCEAN TEMPERATURE > OCEAN MIXED LAYER; BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON; ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PRIMARY PRODUCTION; iron limitation; vertical mixing; marginal ice zone; NISKIN BOTTLES; SCINTILLATION COUNTERS; PAM > PORTABLE FLUORESCENCE ANALYZERS; SHIPS; R/V AA > R/V Aurora Australis; AMD/AU; CEOS; AMD; ACE/CRC; OCEAN > SOUTHERN OCEAN; CONTINENT > ANTARCTICA; GEOGRAPHIC REGION > POLAR; Antarctic; Southern Ocean; The Antarctic; Antarc*; Antarctica; aurora australis; Sea ice
• Online Access: https://researchdata.edu.au/primary-productivity-pulse-80oe-2006/2816202

Progress Code: completed Statement: Taken from the paper: 2. Methods 2.1 Oceanographic Survey The survey area was located between 30 degrees and 80 degrees E longitude off the Antarctic coast, and consisted of 11 parallel north to south (N-S) transects every 5 degrees of longitude (Figure 1). Stations along each N-S transect ranged from 61 degrees 30 minutes S in the north to as far south onto the continental shelf as sea-ice allowed. CTD stations were conducted along every second transect. The survey was conducted from west to east over a three month period, commencing in mid-January and finishing in mid-March 2006. An additional east to west (E-W) transect, perpendicular to the main transects, was conducted along the northern boundary of the survey area in early January at approximately 60 degrees to 62 degrees S. Oceanographic results are described with respect to large-scale circulation by Meijers et al. (this issue) and physical-biological interactions in surface layers by Williams et al. (this issue). For a comprehensive description of CTD operations see Rosenberg (2006). CTD casts were conducted using SeaBird SBE9plus instrumentation and 22 x 10 L General Oceanics Niskin bottles mounted on a SeaBird rosette. Additional probes attached to the rosette included a dissolved oxygen sensor (SBE43), fluorometer (Wet Labs ECO), photosynthetic active radiation (PAR) sensor (LI-COR), transmissometer (Wet Labs C-star), three altimeters (TriTech 200 kHz, TriTech 500 kHz, Benthos model 2110), and an LADCP with upward- and downward-looking transducer sets. Incoming PAR was also measured continually from both port and starboard sides of the ship using LI-COR sensors. Water from Niskin bottles was sampled for dissolved oxygen, salinity, nitrate, nitrite, silicate, dissolved inorganic carbon, primary productivity, pulse-amplitude-modulated (PAM) fluorometry, HPLC pigments, and microbe abundance. Unfortunately there was a problem with phosphate analysis and accurate data were unable to be obtained. Primary productivity ...