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Ship: Lady Basten
4 record(s)
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This record contains data collected on the charter vessel RV Lady Basten between 23 and 28 August 2005 in the Great Barrier Reef. The data can be used for Ocean Colour sensor validation. Parameters measured are the concentration of chlorophyll and carotenoid pigments and retrieved chlorophyll a estimate, the absorption coefficient for dissolved (aCDOM) particulate (a/p) and detrital or non-algal (a/d) components of the water column. 20 stations were sampled. The data was used primarily to validate ocean colour sensors MERIS, MODIS and SeaWIFs and the SST sensor AATSR. Samples were collected and analysed for pigments, total suspended solids (TSS) and dissolved and particulate absorption coefficients. CLW deployed instruments RAMSES, ac-9, Hydroscat and Hydrorad.
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This record contains data collected on the charter vessel RV Lady Basten between 16 and 21 September 2005 in the Great Barrier Reef. The data can be used for Ocean Colour sensor validation. Parameters measured are the concentration of chlorophyll and carotenoid pigments , the absorption coefficient for dissolved (aCDOM) particulate (ap) and detrital or non-algal (ad) components of the water column and the total suspended matter. 32 stations were sampled. The data was used primarily to validate ocean colour sensors MERIS, MODIS and SeaWIFs . CLW deployed instruments RAMSES, ac-9 and Hydroscat.
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The seabed habitat, marine plant and sessile megabenthos cover of the 200,000 km² area of the GBR shelf seabed was observed by a 500 m transect of a Drop-Camera video system at 1210 sites, representing a full range of known physical environments, during six 1-month-long voyages on the AIMS vessel Lady Basten. Continuous underway coding during transects recorded cover of 9 substrata types, 26 biohabitat types, and occurrence of 12 faunal classes. Laboratory post-analysis of the video recorded more detail at ~30 random frames per transect, including: 11 physical topography types, 23 substratum types, 115 biological types -- the dataset comprises 176,000 records site-by-type records. In addition, during most transects, digital still photographs were taken at 5-15 second intervals with strobes, and CTD data were recorded.
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The benthic invertebrate, plant and fish biodiversity of the 200,000 km² area of the GBR shelf seabed was sampled by a 200 m tow of a 1.5 m epibenthic sled at 1191 sites, representing a full range of known physical environments, during six 1-month-long voyages on the AIMS vessel Lady Basten. More than 7,000 species/species-equivalent OTUs (operational taxonomic units) were identified. The dataset comprises 79,173 site-by-species records. A pipe-dredge was attached to the sled to collect sediment samples: a 500 ml subsample was processed for particle size and carbonate by Geoscience Australia; another 500 ml subsample was sieved on 1 mm mesh and preserved in 10% Formalin - Rose Bengal solution.