NDLI: Physical and biogeochemical drivers of alongshore pH and oxygen variability in the California Current System (Dataset)

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Physical and biogeochemical drivers of alongshore pH and oxygen variability in the California Current System (Dataset)

Content Provider	Dryad
Author	Fiechter, Jerome Cheresh, Julia
Abstract	In the California Current System (CCS), the nearshore environment experiences natural exposure to low pH and reduced oxygen in response to coastal upwelling. Anthropogenic impacts further decrease pH and oxygen below biological thresholds, making the CCS particularly vulnerable to ocean acidification and hypoxia. Results from a coupled physical-biogeochemical model reveal a strongly heterogeneous alongshore pattern of nearshore pH and oxygen in the central CCS, both in their long-term means and trends. This spatial structuring is explained by an interplay between alongshore variability in local upwelling intensity and subsequent primary production, as well as changes in the vertical density structure modulated by meanders in the regional ocean circulation. The model solution suggests that the progression of ocean acidification and hypoxia will not be spatially homogeneous, thereby highlighting the need to consider sub-regional processes when assessing natural and anthropogenic impacts on coastal ecosystems in eastern boundary current upwelling regions.
File Size	1468891199
File Format	HTM / HTML
ISSN	00948276
DOI	10.7291/D1D96Q
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/421311
Language	English
Publisher Date	2021-06-16
Access Restriction	Open
Subject Keyword	California Current System Hypoxia Biophysical Model Coastal Upwelling Ocean Acidification and Hypoxia
Content Type	Text
Resource Type	Data Set
Subject	Earth and Planetary Sciences Geophysics

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