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Author Vinayachandran, P. N. ; Davidson, Fraser ; Chassignet, E. P.
Title Towards joint assessments, modern capabilities and new links for ocean prediction systems Type $loc['typeJournal Article']
Year 2020 Publication Bulletin of the American Meteorological Society Abbreviated Journal Bull. Amer. Meteor. Soc.
Volume 101
Issue 4
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Abstract Approximately 260 individuals from forecasting centers, research laboratories, academia, and industry representing 40 countries met to discuss recent developments in operational oceanography and brainstorm about the future directions of ocean prediction services.
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Call Number COAPS @ user @
Serial 1091
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Author Wallcraft, A.J. ; Kara, A.B. ; Barron, C.N. ; Metzger, E.J. ; Pauley, R.L. ; Bourassa, M.A.
Title Comparisons of monthly mean 10 m wind speeds from satellites and NWP products over the global ocean Type $loc['typeJournal Article']
Year 2009 Publication Journal of Geophysical Research Abbreviated Journal J. Geophys. Res.
Volume 114
Issue D16
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ISSN 0148-0227
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Funding OVWST, NASA, NOAA, COD
Approved $loc['no']
Call Number COAPS @ mfield @
Serial 387
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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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ISSN 2169-8953
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Call Number COAPS @ user @
Serial 1114
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Author Weissman, D. E. ; Apgar, G. ; Tongue, J. S. ; Bourassa, M. A.
Title Corrections to the SeaWinds scatterometer wind vectors by removing rain effects Type $loc['typeJournal Article']
Year 2005 Publication Bulletin of the American Meteorological Society Abbreviated Journal
Volume 86
Issue Pages 621-622
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Call Number COAPS @ mfield @
Serial 907
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Author Weissman, D. E. ; Bourassa, M. A.
Title The combined effect of surface rain and wind on scatterometer observations of surface roughness Type $loc['typeConference Article']
Year 2009 Publication 2009 IEEE International Geoscience and Remote Sensing Symposium, IEEE, Cape Town, South Africa Abbreviated Journal
Volume Issue Pages I-108 - I-111
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Funding OVWST
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Call Number COAPS @ mfield @
Serial 674
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Author Weissman, D. E. ; Bourassa, M. A.
Title Measurements of the Effect of Rain-induced Sea Surface Roughness on the Satellite Scatterometer Radar Cross Section Type $loc['typeConference Article']
Year 2008 Publication XXIX General Assembly of the International Union of Radio Science, Union of Radio Science International Abbreviated Journal
Volume 4
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Serial 690
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Author Weissman, D. E. ; Bourassa, M. A. ; Tongue, J.
Title Relationship between QuikSCAT wind speed errors and rain rate using simultaneous, collocated NEXRAD data Type $loc['typeConference Article']
Year 1999 Publication Arcadia, CA, USA Abbreviated Journal
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Serial 787
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Author Weissman, D.E. ; Bourassa, M.A.
Title Measurements of the Effect of Rain-Induced Sea Surface Roughness on the QuikSCAT Scatterometer Radar Cross Section Type $loc['typeJournal Article']
Year 2008 Publication IEEE Transactions on Geoscience and Remote Sensing Abbreviated Journal IEEE Trans. Geosci. Remote Sensing
Volume 46
Issue 10
Pages 2882-2894
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ISSN 0196-2892
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Funding NASA, OVWST, NASA HQ
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Call Number COAPS @ mfield @
Serial 681
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Author Weissman, D.E. ; Bourassa, M.A. ; O'Brien, J.J. ; Tongue, J.S.
Title Calibrating the quikscat/seawinds radar for measuring rainrate over the oceans Type $loc['typeJournal Article']
Year 2003 Publication IEEE Transactions on Geoscience and Remote Sensing Abbreviated Journal IEEE Trans. Geosci. Remote Sensing
Volume 41
Issue 12
Pages 2814-2820
Keywords Next Generation Weather Radar (NEXRAD) ; precipitation ; radar reflectivity ; scatterometer normalized radar cross section (NRCS) ; space-based radar ; Tropical Rain Measuring Mission (TRMM)
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ISSN 0196-2892
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Funding NASA
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Call Number COAPS @ mfield @
Serial 468
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Author Weissman, D.E. ; Bourassa, M.A. ; Tongue, J.
Title Effects of Rain Rate and Wind Magnitude on SeaWinds Scatterometer Wind Speed Errors Type $loc['typeJournal Article']
Year 2002 Publication Journal of Atmospheric and Oceanic Technology Abbreviated Journal J. Atmos. Oceanic Technol.
Volume 19
Issue 5
Pages 738-746
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ISSN 0739-0572
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Call Number COAPS @ mfield @
Serial 830
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