气候变化领域集成服务门户(CCPortal): Modeled Dynamics of Physical and Biological Processes in the Central California Current System From 1993 to 2016

CCPortal

DOI	10.1029/2019JC015664
	Modeled Dynamics of Physical and Biological Processes in the Central California Current System From 1993 to 2016
	Guo L.; Xiu P.; Chai F.; Chavez F.P.
发表日期	2020
ISSN	21699275
卷号	125 期号:5
英文摘要	A three-dimensional physical-biological model was used to study the dynamics of physical and biological processes in the central California Current System (CCS) from 1993 to 2016 and investigate its response to different climate modes. The variations of new production (NP) and nitrate fluxes in the central CCS showed robust seasonal and interannual variability. In the coastal upwelling region (0–150 km offshore), the variability of NP was associated with both coastal upwelling and alongshore nitrate advection. In the coastal transition zone (150–300 km offshore), it was related to nitrate fluxes that were determined primarily by the physics rather than nitrate concentration, with vertical mixing and offshore transport being dominant factors. In the offshore oceanic region (California Current; 300–1,000 km offshore), nitrate concentrations played a more important role in the variations of nitrate fluxes, and the NP variability was dominated by the nutrient supplies of vertical mixing and lateral transports. Although El Niño–Southern Oscillation can affect coastal upwelling, alongshore currents, and nitrate fluxes, the coastal NP responded to El Niño–Southern Oscillation mostly in the frequencies of <1 and >6 years. Pacific Decadal Oscillation and North Pacific Gyre Oscillation may affect the CCS ecosystem through large-scale winds and stratification, modifying the circulation in the upper layer and leading to changes in nitrate concentration and NP. ©2020. Journal of Geophysical Research: Oceans. All Rights Reserved.
英文关键词	ENSO; new production; NPGO/PDO; physical and biological model; the central California Current System
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186858
作者单位	State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Hangzhou, China; School of Marine Sciences, University of Maine, Orono, ME, United States; Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
推荐引用方式 GB/T 7714	Guo L.,Xiu P.,Chai F.,et al. Modeled Dynamics of Physical and Biological Processes in the Central California Current System From 1993 to 2016[J],2020,125(5).
APA	Guo L.,Xiu P.,Chai F.,&Chavez F.P..(2020).Modeled Dynamics of Physical and Biological Processes in the Central California Current System From 1993 to 2016.Journal of Geophysical Research: Oceans,125(5).
MLA	Guo L.,et al."Modeled Dynamics of Physical and Biological Processes in the Central California Current System From 1993 to 2016".Journal of Geophysical Research: Oceans 125.5(2020).