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Soppa, Mariana A; Hirata, Takafumi; Silva, Brenner; Dinter, Tilman; Peeken, Ilka; Wiegmann, Sonja; Bracher, Astrid (2014): Phytoplankton pigment concentrations in the South Atlantic Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.848591, Supplement to: Soppa, MA et al. (2014): Global retrieval of diatom abundance based on phytoplankton pigments and satellite data. Remote Sensing, 6(10), 10089-10106, https://doi.org/10.3390/rs61010089

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Abstract:
Diatoms are the major marine primary producers on the global scale and, recently, several methods have been developed to retrieve their abundance or dominance from satellite remote sensing data. In this work, we highlight the importance of the Southern Ocean (SO) in developing a global algorithm for diatom using an Abundance Based Approach (ABA). A large global in situ data set of phytoplankton pigments was compiled, particularly with more samples collected in the SO. We revised the ABA to take account of the information on the penetration depth (Zpd) and to improve the relationship between diatoms and total chlorophyll-a (TChla). The results showed that there is a distinct relationship between diatoms and TChla in the SO, and a new global model (ABAZpd) improved the estimation of diatoms abundance by 28% in the SO compared with the original ABA model. In addition, we developed a regional model for the SO which further improved the retrieval of diatoms by 17% compared with the global ABAZpd model. As a result, we found that diatom may be more abundant in the SO than previously thought. Linear trend analysis of diatom abundance using the regional model for the SO showed that there are statistically significant trends, both increasing and decreasing, in diatom abundance over the past eleven years in the region.
Keyword(s):
AWI
Project(s):
Physical Oceanography @ AWI (AWI_PhyOce)
Coverage:
Median Latitude: -27.723625 * Median Longitude: -9.917105 * South-bound Latitude: -75.069500 * West-bound Longitude: -164.100000 * North-bound Latitude: 41.982000 * East-bound Longitude: 179.850000
Date/Time Start: 2000-11-06T23:25:00 * Date/Time End: 2012-03-07T08:42:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
10 datasets

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Datasets listed in this publication series

  1. Peeken, I; Nachtigall, K (2014): Phytoplankton pigments measured on water bottle samples during POLARSTERN cruise ANT-XVIII/2 (EisenEx). https://doi.org/10.1594/PANGAEA.869823
  2. Peeken, I; Hoffmann, L (2014): Phytoplankton pigments measured on water bottle samples during POLARSTERN cruise ANT-XXI/3 (EIFEX). https://doi.org/10.1594/PANGAEA.869824
  3. Peeken, I; Hoffmann, L (2014): Phytoplankton pigments in surface water during POLARSTERN cruise ANT-XXI/3 (EIFEX). https://doi.org/10.1594/PANGAEA.869825
  4. Peeken, I; Nachtigall, K (2014): Phytoplankton pigments measured on water bottle samples during POLARSTERN cruise ANT-XXVI/3. https://doi.org/10.1594/PANGAEA.869826
  5. Peeken, I; Nachtigall, K (2014): Pigments in surface water during POLARSTERN cruise ANT-XXVI/3. https://doi.org/10.1594/PANGAEA.869827
  6. Bracher, A (2014): Phytoplankton pigment concentrations during POLARSTERN cruise ANT-XXVIII/3. https://doi.org/10.1594/PANGAEA.848588
  7. Peeken, I; Hoffmann, L (2014): Phytoplankton pigments and nutrients measured on water bottle samples during METEOR cruise M55. https://doi.org/10.1594/PANGAEA.869828
  8. Peeken, I; Hoffmann, L (2014): Phytoplankton pigments in surface water during METEOR cruise M55. https://doi.org/10.1594/PANGAEA.869829
  9. Peeken, I; Nachtigall, K (2014): Pigments measured on water bottle samples during METEOR cruise M60. https://doi.org/10.1594/PANGAEA.869830
  10. Bracher, A (2014): Phytoplankton pigments measured on water bottle samples during SONNE cruise SO218. https://doi.org/10.1594/PANGAEA.848589