Effects of Ocean Chlorophyll on the Mode Water Subduction Rate in the Northwestern and Central Pacific Ocean

Jinfeng Ma; Qian Yang; Hailong Liu; Hailong Liu; Hailong Liu; Pengfei Lin; Pengfei Lin; Juan Liu

doi:10.3389/fmars.2022.814053

Frontiers in Marine Science (Jul 2022)

Effects of Ocean Chlorophyll on the Mode Water Subduction Rate in the Northwestern and Central Pacific Ocean

Jinfeng Ma,
Qian Yang,
Hailong Liu,
Hailong Liu,
Hailong Liu,
Pengfei Lin,
Pengfei Lin,
Juan Liu

Affiliations

Jinfeng Ma: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Qian Yang: State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Hailong Liu: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Hailong Liu: College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
Hailong Liu: Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
Pengfei Lin: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Pengfei Lin: College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
Juan Liu: Beijing Institute of Applied Meteorology, Beijing, China

DOI: https://doi.org/10.3389/fmars.2022.814053
Journal volume & issue: Vol. 9

Abstract

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The effects of ocean chlorophyll on the mode water subduction rate in the subtropical mode water (STMW) and central mode water (CMW) in Pacific Ocean are investigated by performing two ocean-only experiments, using two different solar radiation penetration schemes, one with and one without chlorophyll effects. The biological impacts on mixed layer depth (MLD), upper ocean temperature and density are analyzed. Results show that the subduction rates of both STMW and CMW are increased with the effects of ocean chlorophyll. The increase in the subduction rate is mainly caused by the increased lateral induction term, which is related to larger MLD gradient in early spring in the chlorophyll experiment.

Published in Frontiers in Marine Science

ISSN: 2296-7745 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Natural history (General): General. Including nature conservation, geographical distribution
Website: https://www.frontiersin.org/journals/marine-science

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