Records
Author Mahalakshmi, DV ; Paul, A ; Dutta, D ; Ali, MM ; Dadhwal, VK ; REddy, RS ; Jha, CD ; Sharma, JR
Title Estimation of net surface radiation using eddy flux tower data over a tropical mangrove forest of Sundarban, West Bengal Type $loc['typeJournal Article']
Year 2016 Publication Geofizika Abbreviated Journal
Volume 33
Issue 1
Pages 1-14
Keywords net surface radiation ; artificial neural network ; linear model ; eddy flux tower
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ISSN ISBN Medium
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Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 42
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Author Morey, S.L. ; Bourassa, M.A. ; Dukhovskoy, D.S. ; O'Brien, J.J.
Title Modeling studies of the upper ocean response to a tropical cyclone Type $loc['typeJournal Article']
Year 2006 Publication Ocean Dynamics Abbreviated Journal Ocean Dynamics
Volume 56
Issue 5-6
Pages 594-606
Keywords air-sea interaction ; tropical cyclones ; ocean modeling ; air-sea fluxes
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1616-7341
ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 432
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Author Scott, JP
Title An Intercomparison of Numerically Modeled Flux Data and Satellite-Derived Flux Data for Warm Seclusions Type $loc['typeManuscript']
Year 2011 Publication Abbreviated Journal
Volume Issue Pages
Keywords Satellite ; Reanalysis ; Air Sea Interaction ; Turbulent Heat Fluxes ; Intercomparison ; Warm Seclusion
Abstract
Address
Corporate Author Thesis $loc['Master's thesis']
Publisher Florida State University
Place of Publication Tallahassee, FL
Editor
Language Summary Language Original Title
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ISSN ISBN Medium
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Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 335
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Author Smith, S.R. ; Lopez, N. ; Bourassa, M.A.
Title SAMOS air-sea fluxes: 2005-2014 Type $loc['typeJournal Article']
Year 2016 Publication Geoscience Data Journal Abbreviated Journal Geosci. Data J.
Volume 3
Issue 1
Pages 9-19
Keywords air-sea flux ; marine meteorology ; marine climatology ; heat flux ; wind stress
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Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2049-6060
ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 52
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Author Stukel, M.R. ; Aluwihare, L.I. ; Barbeau, K.A. ; Chekalyuk, A.M. ; Goericke, R. ; Miller, A.J. ; Ohman, M.D. ; Ruacho, A. ; Song, H. ; Stephens, B.M. ; Landry, M.R.
Title Mesoscale ocean fronts enhance carbon export due to gravitational sinking and subduction Type $loc['typeJournal Article']
Year 2017 Publication Proceedings of the National Academy of Sciences of the United States of America Abbreviated Journal Proc Natl Acad Sci U S A
Volume 114
Issue 6
Pages 1252-1257
Keywords biological carbon pump ; carbon cycle ; particle flux ; particulate organic carbon ; plankton
Abstract Enhanced vertical carbon transport (gravitational sinking and subduction) at mesoscale ocean fronts may explain the demonstrated imbalance of new production and sinking particle export in coastal upwelling ecosystems. Based on flux assessments from 238U:234Th disequilibrium and sediment traps, we found 2 to 3 times higher rates of gravitational particle export near a deep-water front (305 mg Cm-2d-1) compared with adjacent water or to mean (nonfrontal) regional conditions. Elevated particle flux at the front was mechanistically linked to Fe-stressed diatoms and high mesozooplankton fecal pellet production. Using a data assimilative regional ocean model fit to measured conditions, we estimate that an additional approximately 225 mg Cm-2d-1 was exported as subduction of particle-rich water at the front, highlighting a transport mechanism that is not captured by sediment traps and is poorly quantified by most models and in situ measurements. Mesoscale fronts may be responsible for over a quarter of total organic carbon sequestration in the California Current and other coastal upwelling ecosystems.
Address Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093
Corporate Author Thesis
Publisher Place of Publication Editor
Language English
Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0027-8424
ISBN Medium
Area Expedition Conference
Funding PMID:28115723; PMCID:PMC5307443
Approved $loc['no']
Call Number COAPS @ mfield @
Serial 67
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Author Stukel, M.R. ; Benitez-Nelson, C.R. ; Decima, M. ; Taylor, A.G. ; Buchwald, C. ; Landry, M.R.
Title The biological pump in the Costa Rica Dome: an open-ocean upwelling system with high new production and low export Type $loc['typeJournal Article']
Year 2016 Publication Journal of Plankton Research Abbreviated Journal J Plankton Res
Volume 38
Issue 2
Pages 348-365
Keywords Eastern Tropical Pacific ; biogeochemistry ; carbon flux ; nutrients ; plankton
Abstract The Costa Rica Dome is a picophytoplankton-dominated, open-ocean upwelling system in the Eastern Tropical Pacific that overlies the ocean's largest oxygen minimum zone. To investigate the efficiency of the biological pump in this unique area, we used shallow (90-150 m) drifting sediment traps and 234Th:238U deficiency measurements to determine export fluxes of carbon, nitrogen and phosphorus in sinking particles. Simultaneous measurements of nitrate uptake and shallow water nitrification allowed us to assess the equilibrium balance of new and export production over a monthly timescale. While f-ratios (new:total production) were reasonably high (0.36 +/- 0.12, mean +/- standard deviation), export efficiencies were considerably lower. Sediment traps suggested e-ratios (export/14C-primary production) at 90-100 m ranging from 0.053 to 0.067. ThE-ratios (234Th disequilibrium-derived export) ranged from 0.038 to 0.088. C:N and N:P stoichiometries of sinking material were both greater than canonical (Redfield) ratios or measured C:N of suspended particulates, and they increased with depth, suggesting that both nitrogen and phosphorus were preferentially remineralized from sinking particles. Our results are consistent with an ecosystem in which mesozooplankton play a major role in energy transfer to higher trophic levels but are relatively inefficient in mediating vertical carbon flux to depth, leading to an imbalance between new production and sinking flux.
Address Scripps Institution of Oceanography , University of California at San Diego , La Jolla, CA 92037 , USA
Corporate Author Thesis
Publisher Place of Publication Editor
Language English
Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0142-7873
ISBN Medium
Area Expedition Conference
Funding PMID:27275035; PMCID:PMC4889986
Approved $loc['no']
Call Number COAPS @ mfield @
Serial 90
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Author Stukel, M.R. ; Kahru, M. ; Benitez-Nelson, C.R. ; Décima, M. ; Goericke, R. ; Landry, M.R. ; Ohman, M.D.
Title Using Lagrangian-based process studies to test satellite algorithms of vertical carbon flux in the eastern North Pacific Ocean Type $loc['typeJournal Article']
Year 2015 Publication Journal of Geophysical Research: Oceans Abbreviated Journal J. Geophys. Res. Oceans
Volume 120
Issue 11
Pages 7208-7222
Keywords satellite-derived export ; carbon export ; model algorithms ; mesozooplankton grazing ; sinking particles ; gravitational flux
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2169-9275
ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 113
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Author Wallcraft, A.J. ; Kara, A.B. ; Hurlburt, H.E. ; Chassignet, E.P. ; Halliwell, G.H.
Title Value of bulk heat flux parameterizations for ocean SST prediction Type $loc['typeJournal Article']
Year 2008 Publication Journal of Marine Systems Abbreviated Journal Journal of Marine Systems
Volume 74
Issue 1-2
Pages 241-258
Keywords Bulk heat fluxes ; Ocean model SST ; Exchange coefficients ; Atmospheric forcing ; Climate
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0924-7963
ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 405
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Author Wang, S. ; Kranz, S.A. ; Kelly, T.B. ; Song, H. ; Stukel, M.R. ; Cassar, N.
Title Lagrangian Studies of Net Community Production: The Effect of Diel and Multiday Nonsteady State Factors and Vertical Fluxes on O2 /Ar in a Dynamic Upwelling Region Type $loc['typeJournal Article']
Year 2020 Publication Journal of Geophysical Research: Biogeosciences Abbreviated Journal J. Geophys. Res. Biogeosci.
Volume 125
Issue 6
Pages e2019JG005569
Keywords net community production ; O2/Ar ; California Current Ecosystem ; Lagrangian measurements ; vertical fluxes ; nonsteady state
Abstract The ratio of dissolved oxygen to argon in seawater is frequently employed to estimate rates of net community production (NCP) in the oceanic mixed layer. The in situ O2/Ar‐based method accounts for many physical factors that influence oxygen concentrations, permitting isolation of the biological oxygen signal produced by the balance of photosynthesis and respiration. However, this technique traditionally relies upon several assumptions when calculating the mixed‐layer O2/Ar budget, most notably the absence of vertical fluxes of O2/Ar and the principle that the air‐sea gas exchange of biological oxygen closely approximates net productivity rates. Employing a Lagrangian study design and leveraging data outputs from a regional physical oceanographic model, we conducted in situ measurements of O2/Ar in the California Current Ecosystem in spring 2016 and summer 2017 to evaluate these assumptions within a �worst‐case� field environment. Quantifying vertical fluxes, incorporating nonsteady state changes in O2/Ar, and comparing NCP estimates evaluated over several day versus longer timescales, we find differences in NCP metrics calculated over different time intervals to be considerable, also observing significant potential effects from vertical fluxes, particularly advection. Additionally, we observe strong diel variability in O2/Ar and NCP rates at multiple stations. Our results reemphasize the importance of accounting for vertical fluxes when interpreting O2/Ar‐derived NCP data and the potentially large effect of nonsteady state conditions on NCP evaluated over shorter timescales. In addition, diel cycles in surface O2/Ar can also bias interpretation of NCP data based on local productivity and the time of day when measurements were made.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2169-8953
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Funding Approved $loc['no']
Call Number COAPS @ user @
Serial 1114
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Author Wei, J. ; Dirmeyer, P.A. ; Guo, Z. ; Zhang, L. ; Misra, V.
Title How Much Do Different Land Models Matter for Climate Simulation? Part I: Climatology and Variability Type $loc['typeJournal Article']
Year 2010 Publication Journal of Climate Abbreviated Journal J. Climate
Volume 23
Issue 11
Pages 3120-3134
Keywords Land surface model ; Climatology ; Surface fluxes ; Climate variability ; Model comparison ; Precipitation
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0894-8755
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Call Number COAPS @ mfield @
Serial 370
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