GSTDTAP  > 气候变化
DOI10.1002/2017GL076839
Wind, Circulation, and Topographic Effects on Alongshore Phytoplankton Variability in the California Current
Fiechter, Jerome; Edwards, Christopher A.; Moore, Andrew M.
2018-04-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2018
卷号45期号:7页码:3238-3245
文章类型Article
语种英语
国家USA
英文摘要

A physical-biogeochemical model is used to produce a retrospective analysis at 3-km resolution of alongshore phytoplankton variability in the California Current during 1988-2010. The simulation benefits from downscaling a regional circulation reanalysis, which provides improved physical ocean state estimates in the high-resolution domain. The emerging pattern is one of local upwelling intensification in response to increased alongshore wind stress in the lee of capes, modulated by alongshore meanders in the geostrophic circulation. While stronger upwelling occurs near most major topographic features, substantial increases in phytoplankton biomass only ensue where local circulation patterns are conducive to on-shelf retention of upwelled nutrients. Locations of peak nutrient delivery and chlorophyll accumulation also exhibit interannual variability and trends noticeably larger than the surrounding shelf regions, thereby suggesting that long-term planktonic ecosystem response in the California Current exhibits a significant local scale (O(100 km)) alongshore component.


Plain Language Summary The California Current region off the west coast of North America is one of the four main upwelling systems of the World Ocean, and it supports a productive marine ecosystem including economically important fisheries. In the present study, a numerical model of the ocean circulation and planktonic food web is used to explain how changes in coastline features (such as capes), regional wind patterns, and transport by ocean currents combine to create local regions of enhanced production at the base of the food web along the west coast of the United States. The main finding from this study is that even though most of the California Current region is subjected to wind patterns that favor the growth of phytoplankton by bringing deep nutrients near the ocean's surface, only a few localized areas of the coastline see significant increases in phytoplankton biomass because of how ocean currents tend to redistribute available nutrients.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000435743400042
WOS关键词OCEAN-MODELING-SYSTEM ; PART I ; ROMS ; FORMULATION ; RESOLUTION ; DYNAMICS ; IMPACTS ; SURFACE ; CARBON ; CAPE
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/27369
专题气候变化
作者单位Univ Calif Santa Cruz, Ocean Sci Dept, Santa Cruz, CA 95064 USA
推荐引用方式
GB/T 7714
Fiechter, Jerome,Edwards, Christopher A.,Moore, Andrew M.. Wind, Circulation, and Topographic Effects on Alongshore Phytoplankton Variability in the California Current[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(7):3238-3245.
APA Fiechter, Jerome,Edwards, Christopher A.,&Moore, Andrew M..(2018).Wind, Circulation, and Topographic Effects on Alongshore Phytoplankton Variability in the California Current.GEOPHYSICAL RESEARCH LETTERS,45(7),3238-3245.
MLA Fiechter, Jerome,et al."Wind, Circulation, and Topographic Effects on Alongshore Phytoplankton Variability in the California Current".GEOPHYSICAL RESEARCH LETTERS 45.7(2018):3238-3245.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Fiechter, Jerome]的文章
[Edwards, Christopher A.]的文章
[Moore, Andrew M.]的文章
百度学术
百度学术中相似的文章
[Fiechter, Jerome]的文章
[Edwards, Christopher A.]的文章
[Moore, Andrew M.]的文章
必应学术
必应学术中相似的文章
[Fiechter, Jerome]的文章
[Edwards, Christopher A.]的文章
[Moore, Andrew M.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。