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Author | Nyadjro, E.S.; Rydbeck, A.V.; Jensen, T.G.; Richman, J.G.; Shriver, J.F. | ||||
Title | On the Generation and Salinity Impacts of Intraseasonal Westward Jets in the Equatorial Indian Ocean | Type | $loc['typeJournal Article'] | ||
Year | 2020 | Publication | Journal of Geophysical Research: Oceans | Abbreviated Journal | J. Geophys. Res. Oceans |
Volume | 125 | Issue | 6 | Pages | e2020JC016066 |
Keywords | ndian Ocean; intraseasonal variability; westward Jet; intraseasonal oscillations; mixed layer salinity; surface currents | ||||
Abstract | While westerly winds dominate the equatorial Indian Ocean and generate the well‐known eastward flowing Wyrtki Jets during boreal spring and fall, there is evidence of a strong westward surface jet during winter that is swifter than eastward currents during that season. A weaker westward jet is found in summer. In this study, we report the occurrence, characteristics, and intraseasonal variability of this westward jet and its impact on mixed layer salinity in the equatorial Indian Ocean using the HYbrid Coordinate Ocean Model (HYCOM) reanalysis with the Navy Coupled Ocean Data Assimilation (NCODA). The westward jet typically occurs in the upper 50 m, above an eastward flowing equatorial undercurrent, with peak westward volume transport of approximately −8 Sv. The westward jet builds up gradually, decays rapidly, and is primarily forced by local intraseasonal wind stress anomalies generated by atmospheric intraseasonal convection. Westward acceleration of the jet occurs when the dominant intraseasonal westward wind anomaly is not balanced by the zonal pressure gradient (ZPG) force. The intraseasonal westward jet generates strong horizontal advection and is the leading cause of mixed layer freshening in the western equatorial Indian Ocean. Without it, a saltier mixed layer would persist and weaken any barrier layers. Existing barrier layers are strengthened following the passage of freshwater‐laden westward jets. Deceleration of the westward jet occurs when the eastward ZPG becomes increasingly important and the westward intraseasonal wind anomalies weaken. A rapid reversal of atmospheric intraseasonal convection‐driven surface winds eventually terminates the westward jet. | ||||
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ISSN | 2169-9275 | ISBN | Medium | ||
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Call Number | COAPS @ user @ | Serial | 1118 | ||
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Author | O'Brien, J.; Richards, T. S.; Davis, A. C. | ||||
Title | The effect of El Nino on U.S. landfalling hurricanes | Type | $loc['typeMagazine Article'] | ||
Year | 1996 | Publication | Bulletin of the American Meteorological Society | Abbreviated Journal | |
Volume | 77 | Issue | 4 | Pages | 773-774 |
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Call Number | COAPS @ mfield @ | Serial | 715 | ||
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Author | O'Brien, J. J.; Bourassa, M. A. | ||||
Title | Scatterometry at COAPS | Type | $loc['typeConference Article'] | ||
Year | 2000 | Publication | Proceedings of the Ocean Vector Wind Science Team Meeting, Arcadia, CA, USA | Abbreviated Journal | |
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Call Number | COAPS @ mfield @ | Serial | 803 | ||
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Author | O'Brien, J. J.; Bourassa, M. A.; Smith, S. R. | ||||
Title | Climate variability in ocean surface turbulent fluxes | Type | $loc['typeReport'] | ||
Year | 2005 | Publication | Abbreviated Journal | ||
Volume | Issue | Pages | 214-219 | ||
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Publisher | NOAA Office of Climate Observation | Place of Publication | Silver Spring, MD, 20910. USA | Editor | |
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Series Editor | Series Title | Annual Report: The State of the Ocean and the Ocean Observing System for Climate | Abbreviated Series Title | ||
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Funding | NOAA | Approved | $loc['no'] | ||
Call Number | COAPS @ mfield @ | Serial | 911 | ||
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Author | O'Brien, J. J.; Bourassa, M. A.; Smith, S. R. | ||||
Title | U.S. research vessel surface meteorology data assembly center | Type | $loc['typeReport'] | ||
Year | 2005 | Publication | Abbreviated Journal | ||
Volume | Issue | Pages | 221-228 | ||
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Publisher | NOAA Office of Climate Observation | Place of Publication | Silver Spring, MD, 20910. USA | Editor | |
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Series Editor | Series Title | Annual Report: The State of the Ocean and the Ocean Observing System for Climate | Abbreviated Series Title | ||
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Call Number | COAPS @ mfield @ | Serial | 912 | ||
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Author | O'Brien, J. J.; Zierden, D. F.; Griffin, M. | ||||
Title | Long-term Forecasting of Wildfire season severity in Florida | Type | $loc['typeReport'] | ||
Year | 2002 | Publication | Abbreviated Journal | ||
Volume | Issue | Pages | 42 | ||
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Publisher | Center for Ocean-Atmospheric Prediction Studies, Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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Series Editor | Series Title | Technical Report 02-2 | Abbreviated Series Title | ||
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Call Number | COAPS @ mfield @ | Serial | 856 | ||
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Author | O'Brien, JJ; Richards, TS; Davis, AC | ||||
Title | The effect of El Nino on US landfalling hurricanes | Type | $loc['typeJournal Article'] | ||
Year | 1996 | Publication | Bulletin of the American Meteorological Society | Abbreviated Journal | |
Volume | 77 | Issue | 4 | Pages | 773-774 |
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Call Number | COAPS @ mfield @ | Serial | 547 | ||
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Author | O'hara, S. H.; Arko, R. A.; Clark, D.; Chandler, C. L.; Elya, J. L.; Ferrini, V. L.; McLain, K.; Olson, C. J.; Sellers, C. J.; Smith, S. R.; Stocks, K. I.; Stolp, L.; Carbotte, S. M. | ||||
Title | Rolling Deck to Repository (R2R) Program Data Services for the Oceanographic Research Community | Type | $loc['typeJournal Article'] | ||
Year | 2018 | Publication | American Geophysical Union | Abbreviated Journal | |
Volume | Issue | Pages | |||
Keywords | 4299 General or miscellaneous, OCEANOGRAPHY: GENERAL | ||||
Abstract | Research vessels supported by NSF are critical platforms contributing to academic oceanographic research in the US. The “underway” data sets obtained from the continuously operating geophysical, water column, and meteorological sensors aboard these vessels provide characterization of basic environmental conditions for the oceans and are of high scientific value for building global syntheses, climatologies, and historical time series of ocean properties (e.g the World Ocean Atlas, the GMRT bathymetric synthesis, ICOADS). The Rolling deck to Repository program (www.rvdata.us) provides a central shore-side data gateway that ensures the basic documentation, assessment and submission of all environmental data from ship operators to the NOAA long-term archives for these data. R2R provides a set of data services for the oceanographic research community, including: publishing an online, searchable and browsable master cruise catalog, supported by cruise and data set DOIs; organizing, archiving, and disseminating original underway data and documents; assessing data quality on select data types; creating select post-field data products; and supporting at-sea event logging. In this presentation we will discuss new developments in R2R data services and challenges associated with ship-based data management. A significant challenge is the dramatic increase in data volumes associated with new sensors (e.g. the EK80 Sonar systems) whereby individual cruise distributions can be several terabytes. Ship operators, R2R and NCEI must design a way to move and store these growing volumes. R2R is also working to make information more accessible and complete. A new website has been launched along with API web services that allow users to find and use data more easily. R2R is working to improve device metadata, including working to identify the time sources for all environmental sensors to support accurate comparison and merging of data sets. |
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Call Number | COAPS @ user @ | Serial | 1006 | ||
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Author | O'hara, S. H.; Arko, R. A.; Clark, D.; Chandler, C. L.; Elya, J. L.; Ferrini, V. L.; McLain, K.; Olson, C. J.; Sellers, C. J.; Smith, S. R.; Stocks, K. I.; Stolp, L.; Carbotte, S. M. | ||||
Title | Rolling Deck to Repository (R2R) Program Data Services for the Oceanographic Research Community | Type | $loc['typeAbstract'] | ||
Year | 2018 | Publication | American Geophysical Union | Abbreviated Journal | AGU |
Volume | American Geophysical Union, Fall Meeting 2018 | Issue | Pages | ||
Keywords | OCEANOGRAPHY: GENERAL | ||||
Abstract | Research vessels supported by NSF are critical platforms contributing to academic oceanographic research in the US. The “underway” data sets obtained from the continuously operating geophysical, water column, and meteorological sensors aboard these vessels provide characterization of basic environmental conditions for the oceans and are of high scientific value for building global syntheses, climatologies, and historical time series of ocean properties (e.g the World Ocean Atlas, the GMRT bathymetric synthesis, ICOADS). The Rolling deck to Repository program (www.rvdata.us) provides a central shore-side data gateway that ensures the basic documentation, assessment and submission of all environmental data from ship operators to the NOAA long-term archives for these data. R2R provides a set of data services for the oceanographic research community, including: publishing an online, searchable and browsable master cruise catalog, supported by cruise and data set DOIs; organizing, archiving, and disseminating original underway data and documents; assessing data quality on select data types; creating select post-field data products; and supporting at-sea event logging. In this presentation we will discuss new developments in R2R data services and challenges associated with ship-based data management. A significant challenge is the dramatic increase in data volumes associated with new sensors (e.g. the EK80 Sonar systems) whereby individual cruise distributions can be several terabytes. Ship operators, R2R and NCEI must design a way to move and store these growing volumes. R2R is also working to make information more accessible and complete. A new website has been launched along with API web services that allow users to find and use data more easily. R2R is working to improve device metadata, including working to identify the time sources for all environmental sensors to support accurate comparison and merging of data sets. | ||||
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Call Number | COAPS @ user @ | Serial | 1020 | ||
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Author | Palacios-Hernández, E.; Carrillo, L.; Lavín, M.F.; Zamudio, L.; García-Sandoval, A. | ||||
Title | Hydrography and circulation in the Northern Gulf of California during winter of 1994-1995 | Type | $loc['typeJournal Article'] | ||
Year | 2006 | Publication | Continental Shelf Research | Abbreviated Journal | Continental Shelf Research |
Volume | 26 | Issue | 1 | Pages | 82-103 |
Keywords | seasonal circulation; gyres; coastally trapped waves; ENSO; Gulf of California | ||||
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ISSN | 0278-4343 | ISBN | Medium | ||
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Call Number | COAPS @ mfield @ | Serial | 442 | ||
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