Records
Author Lim, Y.-K. ; Kim, K.-Y.
Title A New Perspective on the Climate Prediction of Asian Summer Monsoon Precipitation Type $loc['typeJournal Article']
Year 2006 Publication Journal of Climate Abbreviated Journal J. Climate
Volume 19
Issue 19
Pages 4840-4853
Keywords Monsoons ; Asia ; Intraseasonal variability ; Precipitation
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ISSN 0894-8755
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Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 708
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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
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Call Number COAPS @ user @
Serial 1118
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Author Stefanova, L. ; Misra, V. ; Chan, S. ; Griffin, M. ; O'Brien, J.J. ; Smith III, T.J.
Title A proxy for high-resolution regional reanalysis for the Southeast United States: assessment of precipitation variability in dynamically downscaled reanalyses Type $loc['typeJournal Article']
Year 2012 Publication Climate Dynamics Abbreviated Journal Clim Dyn
Volume 38
Issue 11-12
Pages 2449-2466
Keywords Southeast US ; Precipitation ; Hydroclimate ; Diurnal variability ; Seasonal variability ; Dynamical downscaling ; Reanalysis
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Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0930-7575
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Call Number COAPS @ mfield @
Serial 262
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Author Zavala-Hidalgo, J ; Pares-Sierra, A ; Ochoa, J
Title Seasonal variability of the temperature and heat fluxes in the Gulf of Mexico Type $loc['typeJournal Article']
Year 2002 Publication Atmosfera Abbreviated Journal
Volume 15
Issue 2
Pages 81-104
Keywords Gulf of Mexico ; heat fluxes ; numerical model ; sea surface temperature ; seasonal variability
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Call Number COAPS @ mfield @
Serial 498
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