An exploratory modeling study on bio-physical processes associated with ENSO SCIE SCOPUS

Cited 17 time in WEB OF SCIENCE Cited 17 time in Scopus
Title
An exploratory modeling study on bio-physical processes associated with ENSO
Author(s)
Park, Jong-Yeon; Kug, Jong-Seong; Park, Young-Gyu
KIOST Author(s)
Park, Young Gyu(박영규)
Publication Year
2014-05
Abstract
Variability of marine phytoplankton associated with El Nino-Southern Oscillation (ENSO) and potential biological feedbacks onto ENSO are investigated by performing coupled ocean/biogeochemical model experiments forced by realistic surface winds from 1951 to 2010. The ocean model used in this study is the MOM4, which is coupled to a biogeochemical model, called TOPAZ (Tracers in the Ocean with Allometric Zooplankton). In general, it is shown that MOM4-TOPAZ mimics the observed main features of phytoplankton variability associated with ENSO. By comparing the actively coupled MOM4-TOPAZ experiment with the ocean model experiments using prescribed chlorophyll concentrations, potential impacts of phytoplankton on ENSO are evaluated. We found that chlorophyll generally increases mean sea surface temperature (SST) and decreases subsurface temperature by altering the penetration of solar radiation. However, as the chlorophyll concentration increases, the equatorial Pacific SST decreases due to the enhanced upwelling of the cooler subsurface water with shoaling of mixed layer and thermocline. The presence of chlorophyll generally intensifies ENSO amplitude by changing the ocean basic state. On the other hand, interactively varying chlorophyll associated with the ENSO tends to reduce ENSO amplitude. Therefore, the two biological effects on SST are competing against each other regarding the SST variance in the equatorial Pacific. (C) 2014 Elsevier Ltd. All rights reserved.
ISSN
0079-6611
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2825
DOI
10.1016/j.pocean.2014.03.013
Bibliographic Citation
PROGRESS IN OCEANOGRAPHY, v.124, pp.28 - 41, 2014
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
GENERAL-CIRCULATION MODEL; EQUATORIAL PACIFIC-OCEAN; EL-NINO; TROPICAL PACIFIC; PENETRATIVE RADIATION; CALANUS-FINMARCHICUS; ATMOSPHERE FEEDBACKS; EASTERN EDGE; WARM POOL; VARIABILITY
Type
Article
Language
English
Document Type
Review
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

ocean circulation,ocean mixing,marine debris,해양순환,해양혼합,해양부유물

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse