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  • 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Alloxanthin; alpha-Carotene, beta,epsilon-Carotene; beta-Carotene, beta,beta-Carotene; Chlorophyll a; Chlorophyll b; Chlorophyll c1+c2; Chlorophyll c3; Chlorophyllide a; CT; CTD, Seabird; CTD-R; CTD-yoyo; DATE/TIME; DEPTH, water; Diadinoxanthin; Diatoxanthin; Divinyl chlorophyll a; Divinyl chlorophyll b; Event label; Fucoxanthin; Gear; High Performance Liquid Chromatography (HPLC); LATITUDE; LONGITUDE; Lutein; Maria S. Merian; MSM09/1; MSM09/1_342-1; MSM09/1_343-1; MSM09/1_348-1; MSM09/1_349-1; MSM09/1_351-1; MSM09/1_354-1; MSM09/1_358-1; MSM09/1_359-1; MSM09/1_364-1; MSM09/1_368-1; MSM09/1_372-1; MSM09/1_380-1; MSM09/1_382-1; MSM09/1_386-1; MSM09/1_390-1; MSM09/1_392-1; MSM09/1_394-1; MSM09/1_401-1; MSM09/1_401-7; MSM09/1_401-9; MSM09/1_402-3; MSM09/1_403-1; MSM09/1_406-1; MSM09/1_411-1; MSM09/1-track; Neoxanthin; Peridinin; Sample code/label; South Atlantic Ocean; Underway cruise track measurements; Violaxanthin; Yoyo-CTD; Zeaxanthin  (1)
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  • 1
    facet.materialart.
    Unknown
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2024-04-02
    Description: We derive the chlorophyll a concentration (Chla) for three main phytoplankton functional types (PFTs) - diatoms, coccolithophores and cyanobacteria - by combining satellite multispectral-based information, being of a high spatial and temporal resolution, with retrievals based on high resolution of PFT absorption properties derived from hyperspectral measurements. The multispectral-based PFT Chla retrievals are based on a revised version of the empirical OC-PFT algorithm (Hirata et al. 2011) applied to the Ocean Colour Climate Change Initiative (OC-CCI) total Chla product. The PhytoDOAS analytical algorithm (Bracher et al. 2009, Sadeghi et al. 2012) is used with some modifications to derive PFT Chla from SCIAMACHY hyperspectral measurements. To combine synergistically these two PFT products (OC-PFT and PhytoDOAS), an optimal interpolation is performed for each PFT in every OC-PFT sub-pixel within a PhytoDOAS pixel, given its Chla and its a priori error statistics. The synergistic product (SynSenPFT) is presented for the period of August 2002 - March 2012 and evaluated against in situ HPLC pigment data and satellite information on phytoplankton size classes (PSC) (Brewin et al. 2010, Brewin et al. 2015) and the size fraction (Sf) by Ciotti and Bricaud (2006). The most challenging aspects of the SynSenPFT algorithm implementation are discussed. Perspectives on SynSenPFT product improvements and prolongation of the time series over the next decades by adaptation to Sentinel multi- and hyperspectral instruments are highlighted.
    Keywords: 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Alloxanthin; alpha-Carotene, beta,epsilon-Carotene; beta-Carotene, beta,beta-Carotene; Chlorophyll a; Chlorophyll b; Chlorophyll c1+c2; Chlorophyll c3; Chlorophyllide a; CT; CTD, Seabird; CTD-R; CTD-yoyo; DATE/TIME; DEPTH, water; Diadinoxanthin; Diatoxanthin; Divinyl chlorophyll a; Divinyl chlorophyll b; Event label; Fucoxanthin; Gear; High Performance Liquid Chromatography (HPLC); LATITUDE; LONGITUDE; Lutein; Maria S. Merian; MSM09/1; MSM09/1_342-1; MSM09/1_343-1; MSM09/1_348-1; MSM09/1_349-1; MSM09/1_351-1; MSM09/1_354-1; MSM09/1_358-1; MSM09/1_359-1; MSM09/1_364-1; MSM09/1_368-1; MSM09/1_372-1; MSM09/1_380-1; MSM09/1_382-1; MSM09/1_386-1; MSM09/1_390-1; MSM09/1_392-1; MSM09/1_394-1; MSM09/1_401-1; MSM09/1_401-7; MSM09/1_401-9; MSM09/1_402-3; MSM09/1_403-1; MSM09/1_406-1; MSM09/1_411-1; MSM09/1-track; Neoxanthin; Peridinin; Sample code/label; South Atlantic Ocean; Underway cruise track measurements; Violaxanthin; Yoyo-CTD; Zeaxanthin
    Type: Dataset
    Format: text/tab-separated-values, 2200 data points
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