Climatic factors and their robust evidences controlling phytoplankton biomass in the Bransfield Strait
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- Climatic factors and their robust evidences controlling phytoplankton biomass in the Bransfield Strait
- Other Titles
- 브랜스필드 해협에서 식물플랑크톤 바이오매스를 조절하는 기후 요인 및 그에 대한 강력한 증거
- La, HyoungSul
Chae, Jeong Yeob
- Geology; Meteorology & Atmospheric Sciences; Oceanography
- Antarctica; Bransfield Strait; Chlorophyll; ENSO; Interannual variation
- Issue Date
- La, HyoungSul, et al. 2019. "Climatic factors and their robust evidences controlling phytoplankton biomass in the Bransfield Strait". TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES, 30(6): 821-830.
- The long-term variability of chlorophyll a (Chl-a) was analyzed during a 12- year period (2002 - 2014) in the Bransfield Strait, Antarctica, to assess the interannual variability of the Chl-a and its main regulating environmental variables. We found that Chl-a was significantly correlated with the El Nin？o Southern Oscillation (ENSO) phase (r = -0.65), sea surface temperature (SST) (r = 0.70), and wind speed (r = 0.72), and changes in these factors preceded the Chl-a change by 0 - 4 months. High phytoplankton blooms (indicated by Chl-a levels) tended to coincide with higher SSTs, and lagged with wind speed variation during La Nin？a periods. This suggests that atmospheric teleconnections with ENSO-related processes, SST, and wind speed could have a direct impact on phytoplankton biomass in the Bransfield Strait in short term (<4 months) scales. Furthermore, our simple multivariable regression analysis showed the prominent possibility of using the three variables to predict Chl-a in the Bransfield Strait region. Overall, this study will help us to understand how atmospheric and oceanic fluctuations could affect phytoplankton dynamics in the Southern Ocean.
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