Zobrazeno 1 - 10 of 15 pro vyhledávání: '"Jeff C. Sevadjian"'
1
Characterization of the biological, physical, and chemical properties of a toxic thin layer in a temperate marine system
Autor: Stephen G. Monismith, C. Brock Woodson, Amanda H. V. Timmerman, Olivia M. Cheriton, Adam T. Greer, Margaret A. McManus, Jeff C. Sevadjian, Derek A. Fong, Robert K. Cowen
Publikováno v: Marine Ecology Progress Series. 678:17-35
The distribution of plankton in the ocean is patchy across a wide range of spatial and temporal scales. One type of oceanographic feature that exemplifies this patchiness is a ‘thin layer’. Thin layers are subsurface aggregations of plankton that
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9375256bd269f2c7b58532319f14efe9
https://doi.org/10.3354/meps13879
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2
Measurements of pCO2 and pH from an autonomous surface vehicle in a coastal upwelling system
Autor: Jeff C. Sevadjian, Francisco P. Chavez, Gernot E. Friederich, Jules Friederich, Chris Wahl
Publikováno v: Deep Sea Research Part II: Topical Studies in Oceanography. 151:137-146
Anthropogenic input of carbon dioxide (CO2) into the atmosphere and its uptake by the ocean with associated changes in ocean chemistry have created an urgent need to expand coverage of sea surface and atmospheric carbon dioxide observations. Conventi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a8729654adf952218be352004e2df5b
https://doi.org/10.1016/j.dsr2.2017.01.001
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4
Vertical convergence of resuspended sediment and subducted phytoplankton to a persistent detached layer over the southern shelf of Monterey Bay, California
Autor: Olivia M. Cheriton, Jeff C. Sevadjian, Erika E. McPhee-Shaw, Curt D. Storlazzi, Ben Y. Raanan
Publikováno v: Journal of Geophysical Research: Oceans. 120:3462-3483
Work done by the present authors and collaborators in the first year of a 2-year field study established the frequent presence of layers of suspended particulate matter detached from the seafloor over the southern shelf of Monterey Bay, California. I
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37dbffeaaf9c1d492d520e764c9149a2
https://doi.org/10.1002/2015jc010785
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5
Persistent spatial structuring of coastal ocean acidification in the California Current System
Autor: Tarik C. Gouhier, Francis Chan, Libe Washburn, Robert H. Byrne, Carol A. Blanchette, Gernot E. Friederich, Olivia M. Cheriton, John A. Barth, Tessa M. Hill, Francisco P. Chavez, Gretchen E. Hofmann, Jeff C. Sevadjian, Bruce A. Menge, Richard A. Feely, Sally D. Hacker, Ann D. Russell, Margaret A. McManus, Karina J. Nielsen, Brian Gaylord, Eric Sanford
Publikováno v: Scientific Reports
Scientific reports, vol 7, iss 1
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
The near-term progression of ocean acidification (OA) is projected to bring about sharp changes in the chemistry of coastal upwelling ecosystems. The distribution of OA exposure across these early-impact systems, however, is highly uncertain and limi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c29abdc8b2907a7ec4d884db67dc291
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6
Hidden thin layers of toxic diatoms in a coastal bay
Autor: Jeff C. Sevadjian, Raphael M. Kudela, Margaret A. McManus, Kathleen C. Ruttenberg, Amanda H. V. Timmerman, Olivia M. Cheriton, Adam T. Greer, Robert K. Cowen
Publikováno v: Deep Sea Research Part II: Topical Studies in Oceanography. 101:129-140
Harmful algal blooms (HABs) can threaten animal and human health through the production of toxins such as domoic acid. These blooms have become more frequent and toxic over the last few decades. In this study, we investigate the role that nutrients p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53415fbcde80e5a1159cd89f400a0375
https://doi.org/10.1016/j.dsr2.2013.05.030
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7
Across-shore variability in plankton layering and abundance associated with physical forcing in Monterey Bay, California
Autor: Jeff C. Sevadjian, John P. Ryan, C. B. Woodson, Margaret A. McManus, Robert K. Cowen, Adam T. Greer
Publikováno v: Continental Shelf Research. 72:138-151
The purpose of this study was to further our understanding of the role of the coastal physical oceanographic environment as a dynamic and constantly evolving habitat for plankton. Over a 3-week period in the summer of 2010, an array of moorings were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f7643f65ca4207248dd33fd62b0226b
https://doi.org/10.1016/j.csr.2013.09.018
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8
4D-Var data assimilation in a nested, coastal ocean model: A Hawaiian case study
Autor: D. Matthews, Ivica Janeković, Brian Powell, Jeff C. Sevadjian, Margaret A. McManus
Publikováno v: Journal of Geophysical Research: Oceans. 118:5022-5035
[1] State estimation techniques have been well established in open ocean systems; however they are less often used in coastal applications due to nonlinearity. Using 4D-variational data assimilation in a triple one-way nested system, we investigate t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97e2bc8b50292fd8008e85525dc6fe6c
https://doi.org/10.1002/jgrc.20389
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9
Relationships between phytoplankton thin layers and the fine-scale vertical distributions of two trophic levels of zooplankton
Autor: Robert K. Cowen, Amanda H. V. Timmerman, Adam T. Greer, Margaret A. McManus, Jeff C. Sevadjian, Cedric M. Guigand
Publikováno v: Journal of Plankton Research. 35:939-956
Thin layers of phytoplankton are well documented, common features in coastal areas globally, but little is known about the relationships of these layers to higher trophic levels. We deployed the In Situ Ichthyoplankton Imaging System (ISIIS) to simul
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f3f12577365dcac45c63ed23092a81f
https://doi.org/10.1093/plankt/fbt056
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10
Shoreward advection of phytoplankton and vertical re-distribution of zooplankton by episodic near-bottom water pulses on an insular shelf: Oahu, Hawaii
Autor: Jeff C. Sevadjian, Kelly J. Benoit-Bird, Karen E. Selph, Margaret A. McManus
Publikováno v: Continental Shelf Research. :1-15
Shoreward pulses of cold, high salinity, phytoplankton-rich bottom water represent short time scale changes in nearshore hydrography and biological community structure off the leeward coast of Oahu, Hawaii. A three-week mooring deployment in Spring 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b85b2edae5d74f820409c511d0479a7b
https://doi.org/10.1016/j.csr.2012.09.006
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