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Southern Ocean Phytoplankton Blooms Observed by Biogeochemical Floats
Southern Ocean Phytoplankton Blooms Observed by Biogeochemical Floats
- Source :
- Journal of Geophysical Research: Oceans. 124:7328-7343
- Publication Year :
- 2019
- Publisher :
- American Geophysical Union (AGU), 2019.
-
Abstract
- The spring bloom in the Southern Ocean is the rapid-growth phase of the seasonal cycle in phytoplankton. Many previous studies have characterized the spring bloom using chlorophyll estimates from satellite ocean color observations. Assumptions regarding the chlorophyll-to-carbon ratio within phytoplankton and vertical structure of biogeochemical variables lead to uncertainty in satellite-based estimates of phytoplankton carbon biomass. Here, we revisit the characterizations of the bloom using optical backscatter from biogeochemical floats deployed by the Southern Ocean Carbon and Climate Observations and Modelling (SOCCOM) and Southern Ocean and Climate Field Studies with Innovative Tools (SOCLIM) projects. In particular, by providing a three-dimensional view of the seasonal cycle, we are able to identify basin-wide bloom characteristics corresponding to physical features; biomass is low in Ekman downwelling regions north of the Antarctic Circumpolar Current (ACC) region, and high within and south of the ACC.
- Subjects :
- Biogeochemical cycle
010504 meteorology & atmospheric sciences
Spring bloom
Oceanography
01 natural sciences
Algal bloom
Geophysics
Space and Planetary Science
Geochemistry and Petrology
Ocean color
Downwelling
Phytoplankton
Earth and Planetary Sciences (miscellaneous)
Environmental science
Bloom
Argo
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 21699291 and 21699275
- Volume :
- 124
- Database :
- OpenAIRE
- Journal :
- Journal of Geophysical Research: Oceans
- Accession number :
- edsair.doi...........5a8eedfa85e8b3679cb47259394c7f9c
- Full Text :
- https://doi.org/10.1029/2019jc015355