ScholarsArchive@OSU

Citeable URL: http://ir.library.oregonstate.edu/concern/articles/pv63g210h

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by the Oceanography Society and can be found at:  http://www.tos.org/oceanography/index.html.

Descriptions

Attribute Name	Values
Creator	Bograd, Steven J. Taguchi, Bunmei Ohman, Mark D. Keister, Julie E. Bracco, Annalisa Hormazabal, Samuel Combes, Vincent Di Lorenzo, Emanuele Thomas, Andrew C. Schwing, Franklin B. Chiba, Sanae Peterson, William T. Parada, Carolina Franks, Peter J. S. Furtado, Jason C. Strub, P. Ted
Abstract or Summary	The goal of the Pacific Ocean Boundary Ecosystem and Climate Study (POBEX) was to diagnose the large-scale climate controls on regional transport dynamics and lower trophic marine ecosystem variability in Pacific Ocean boundary systems. An international team of collaborators shared observational and eddy-resolving modeling data sets collected in the Northeast Pacific, including the Gulf of Alaska (GOA) and the California Current System (CCS), the Humboldt or Peru-Chile Current System (PCCS), and the Kuroshio-Oyashio Extension (KOE) region. POBEX investigators found that a dominant fraction of decadal variability in basin- and regional-scale salinity, nutrients, chlorophyll, and zooplankton taxa is explained by a newly discovered pattern of ocean-climate variability dubbed the North Pacific Gyre Oscillation (NPGO) and the Pacific Decadal Oscillation (PDO). NPGO dynamics are driven by atmospheric variability in the North Pacific and capture the decadal expression of Central Pacific El Niños in the extratropics, much as the PDO captures the low-frequency expression of eastern Pacific El Niños. By combining hindcasts of eddy-resolving ocean models over the period 1950–2008 with model passive tracers and long-term observations (e.g., CalCOFI, Line-P, Newport Hydrographic Line, Odate Collection), POBEX showed that the PDO and the NPGO combine to control low-frequency upwelling and alongshore transport dynamics in the North Pacific sector, while the eastern Pacific El Niño dominates in the South Pacific. Although different climate modes have different regional expressions, changes in vertical transport (e.g., upwelling) were found to explain the dominant nutrient and phytoplankton variability in the CCS, GOA, and PCCS, while changes in alongshore transport forced much of the observed long-term change in zooplankton species composition in the KOE as well as in the northern and southern CCS. In contrast, cross-shelf transport dynamics were linked to mesoscale eddy activity, driven by regional-scale dynamics that are largely decoupled from variations associated with the large-scale climate modes. Preliminary findings suggest that mesoscale eddies play a key role in offshore transport of zooplankton and impact the life cycles of higher trophic levels (e.g., fish) in the CCS, PCCS, and GOA. Looking forward, POBEX results may guide the development of new modeling and observational strategies to establish mechanistic links among climate forcing, mesoscale circulation, and marine population dynamics.
Resource Type	Article
DOI	10.5670/oceanog.2013.76
Date Available	2014-04-21T18:29:14+00:00
Date Issued	2013-12
Citation	Di Lorenzo, E., V. Combes, J.E. Keister, P.T. Strub, A.C. Thomas, P.J.S. Franks, M.D. Ohman, J.C. Furtado, A. Bracco, S.J. Bograd, W.T. Peterson, F.B. Schwing, S. Chiba, B. Taguchi, S. Hormazabal, and C. Parada. 2013. Synthesis of Pacific Ocean climate and ecosystem dynamics. Oceanography 26(4):68–81. doi:10.5670/oceanog.2013.76
Series	Oceanography Vol. 26 no. 4
Rights Statement	Copyright Not Evaluated
Funding Statement (additional comments about funding)	The Pacific Ocean Boundary Ecosystem and Climate Study (POBEX) was supported by NSF-OCE 0606575 through the GLOBEC program. This is US GLOBEC contribution 738.
Publisher	Oceanography Society
Peer Reviewed	Yes
Language	English [eng]
Replaces	http://hdl.handle.net/1957/47524
Additional Information	description.provenance : Made available in DSpace on 2014-04-21T18:29:14Z (GMT). No. of bitstreams: 1 CombesVincentCEOASSynthesisPacificOcean.pdf: 15216179 bytes, checksum: e09b40b3a207dd7689ce560d504f5035 (MD5) Previous issue date: 2013-12 description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-04-21T18:28:53Z No. of bitstreams: 1 CombesVincentCEOASSynthesisPacificOcean.pdf: 15216179 bytes, checksum: e09b40b3a207dd7689ce560d504f5035 (MD5) description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-04-21T18:29:14Z (GMT) No. of bitstreams: 1 CombesVincentCEOASSynthesisPacificOcean.pdf: 15216179 bytes, checksum: e09b40b3a207dd7689ce560d504f5035 (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Items

Thumbnail	Title	Date Uploaded	Visibility	Actions
	CombesVincentCEOASSynthesisPacificOcean.pdf	2017-07-27	Public	Press to Select an action Download