Calibrated Fluorescence Profiles from the K-Axis Voyage of the Aurora Australis, 2016

• Other Authors: AADC (originator), AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: biota; oceans; FLUORESCENCE; EARTH SCIENCE; OCEAN OPTICS; CHLOROPHYLL; OCEAN CHEMISTRY; PHYTOPLANKTON; BIOSPHERE; AQUATIC ECOSYSTEMS; PLANKTON; CTD FLUOROMETER - WET LABS ECO-AFL/FL; CTD > Conductivity Temperature Depth; FLUOROMETERS; R/V AA > R/V Aurora Australis; ACE/CRC; AMD/AU; CEOS; AMD; GEOGRAPHIC REGION > POLAR; OCEAN > SOUTHERN OCEAN > SOUTHERN KERGUELEN PLATEAU; BANZARE BANK; Southern Ocean; Kerguelen; Indian; Banzare Bank; aurora australis
• Online Access: https://researchdata.edu.au/calibrated-fluorescence-profiles-australis-2016/1447085; https://data.aad.gov.au/metadata/records/AAS_4344_Calibrated_Fluorescence_Profiles_K-Axis; https://data.aad.gov.au/eds/5082/download; https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4344; https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4344_Calibrated_Fluorescence_Profiles_K-Axis

Many stations were omitted from the calibration regression due to high variability between fluorometer and chlorophyll a measurements at that site. We do not know why this occurred - possibly a mismatch in depth measurements (e.g. caused by waves). The stations INCLUDED in the regression were: 7,8,9,11,15,17,28,31,32,33,37,39,40,41,42,44 Processed CTD instrument data - Corrected fluorescence profiles at the Southern Kerguelen Plateau, Indian Sector of the Southern Ocean. The fluorometer was calibrated through the regression of burst measurements against in situ chlorophyll a measured at the same depths and sites using high performance liquid chromatography (Wright et al. 2010). Zero chlorophyll a reference points were included in the regression and were obtained through averaging fluorometry data over 200-300 m bins. The resulting linear equation used to convert flourometry data was: chlorophyll = 0.262*fluorescence + 0.101. Column measurements (µg L-1) and integrated data (0-150 m, mg m-2) for each CTD station are provided.