Biophysical Effects Simulated by an Ocean General Circulation Model Coupled with a Biogeochemical Model in the Tropical Pacific

Park, Hyo-Jin; Moon, Byung-Kwon; Wie, Jieun; Kim, Ki-Young; Lee, Johan; Byun, Young-Hwa

추천

검색

자료유형: 학술저널

저자정보: Park, Hyo-Jin (Gunsan Dongsan Middle School) Moon, Byung-Kwon (Division of Science Education & Institute of Fusion Science, Chonbuk National University) Wie, Jieun (Division of Science Education & Institute of Fusion Science, Chonbuk National University) Kim, Ki-Young (4D Solution CO., LTD.) Lee, Johan (National Institute of Meteorological Sciences) Byun, Young-Hwa (National Institute of Meteorological Sciences)

저널정보: 한국지구과학회 한국지구과학회지 한국지구과학회지 제38권 제7호

발행연도: 2017.1

수록면: 469 - 480 (12page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

Controversy has surrounded the potential impacts of phytoplankton on the tropical climate, since climate models produce diverse behaviors in terms of the equatorial mean state and El $Ni{\tilde{n}}o$-Southern Oscillation (ENSO) amplitude. We explored biophysical impacts on the tropical ocean temperature using an ocean general circulation model coupled to a biogeochemistry model in which chlorophyll can modify solar attenuation and in turn feed back to ocean physics. Compared with a control model run excluding biophysical processes, our model with biogeochemistry showed that subsurface chlorophyll concentrations led to an increase in sea surface temperature (particularly in the western Pacific) via horizontal accumulation of heat contents. In the central Pacific, however, a mild cold anomaly appeared, accompanying the strengthened westward currents. The magnitude and skewness of ENSO were also modulated by biophysical feedbacks resulting from the chlorophyll affecting El $Ni{\tilde{n}}o$ and La $Ni{\tilde{n}}a$ in an asymmetric way. That is, El $Ni{\tilde{n}}o$ conditions were intensified by the higher contribution of the second baroclinic mode to sea surface temperature anomalies, whereas La $Ni{\tilde{n}}a$ conditions were slightly weakened by the absorption of shortwave radiation by phytoplankton. In our model experiments, the intensification of El $Ni{\tilde{n}}o$ was more dominant than the dampening of La $Ni{\tilde{n}}a$, resulting in the amplification of ENSO and higher skewness.

#El $Ni{tilde{n}}o$-Southern Oscillation #biogeochemistry model #biophysical feedbacks #chlorophyll effects #sea surface temperature

참고문헌 (30)

참고문헌 신청

An, S. I. / 2005 / El Niño-La Niña asymmetry in the coupled model intercomparison project simulations / Journal of Climate 18:2617~2627

Cane, M. A. / 1984 / Modeling sea-level during El Niño / Journal of Physical Oceanography 14:1864~1874

Chavez, F.P / 1999 / Biological and chemical response of the equatorial pacific ocean to the 1997-98 El Niño / Science 286:2126~2131

Dewitte, B. / 2000 / Sensitivity of an intermediate oceanatmosphere coupled model of the tropical pacific to its oceanic vertical structure / Journal of Climate 13:2363~2388

Dunne, J. P. / 2013 / Gfdl's esm2 global coupled climate-carbon earth system models. Part II: Carbon system formulation and baseline simulation characteristics / Journal of Climate 26:2247~2267

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!