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  • 1
    Online Resource
    Online Resource
    Large‐scale estimation of transport from the Pacific to the Indian Ocean
    American Geophysical Union (AGU) ; 1997
    In:  Journal of Geophysical Research: Oceans Vol. 102, No. C13 ( 1997-12-15), p. 27795-27812
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 102, No. C13 ( 1997-12-15), p. 27795-27812
    Abstract: The objective of this model‐data intercomparison is to determine the feasibility of deriving an useful index for fluctuations in the Pacific to Indian Ocean throughflow volume transport. Due to insufficient direct observations and the present limitations in numerical models, accurate estimation of variations in the throughflow transport on seasonal to interannual timescales is not yet possible; however, an index based on weighted, monthly mean sea level anomalies in different regions of the western Pacific and eastern Indian Oceans is presented. Numerical model results and sea level from the TOPEX/POSEIDON altimeter show that the large/scale pressure gradient forcing of the throughflow is controlled by the Pacific Ocean side on interannual timescales, and by a combination of Indian Ocean and Pacific Ocean processes on seasonal to annual timescales. The model throughflow is maximum in boreal summer (11 Sv) and minimum in boreal winter (4 Sv) with a 9‐year mean of 7.4 Sv. These values are within the range of various estimations of throughflow transport, and they agree in phase. Of the 7.4 Sv model transport, almost 1.8 Sv is due to direct, local wind forcing (based on Ekman calculations). Interannual fluctuations from El Niño‐Southern Oscillation activity are associated with increases in throughflow transport during cold events and decreases in transport during warm events. Using empirical orthogonal function analysis and results from previous studies, an index of the throughflow variability is developed using model sea level and model transport. Sea level in four regions is found to be sufficient to index the model throughflow variations: south of Java, northwest of Australia, in the Pacific warm pool and off the coast of the Philippines. A regression technique applied to the model sea level at these locations yields an index which correlates with the model throughflow at 0.83. The same weights applied to sea level in similar regions from the TOPEX/POSEIDON altimeter correlate with the model throughflow transport at a level of 0.78.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/97JC01719
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1997
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  • 2
    Online Resource
    Online Resource
    The seasonal circulation of the upper ocean in the Bay of Bengal
    American Geophysical Union (AGU) ; 1991
    In:  Journal of Geophysical Research: Oceans Vol. 96, No. C7 ( 1991-07-15), p. 12667-12683
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 96, No. C7 ( 1991-07-15), p. 12667-12683
    Abstract: Analysis of the results of a multilayer, adiabatic, numerical model of the upper Indian Ocean, driven by climatological monthly mean winds, shows that the simulated currents in the northeastern Indian Ocean are in general agreement with available observations and interpretations. The main features of the ocean currents include large anticyclonic flow in the Bay of Bengal surface waters during the northern hemisphere winter. This gyre decays into eddies in spring and then transitions into a weaker, cyclonic gyre by late summer. The western recirculation region of this flow is an intensified western boundary current which changes direction twice during the year. In the Andaman Sea, east of the Bay of Bengal, the oceanic flow changes direction twice during the year; it is cyclonic during the spring and early summer and anticyclonic the rest of the year. Flow in the equatorial region shows the North Equatorial Current (NEC) flowing west during winter. Further south is the eastward flowing Equatorial Counter Current (ECC) and the westward flowing South Equatorial Current. In summer, the NEC switches direction, joins the ECC, and forms the Indian Monsoon Current. Investigation of the second layer of the model (the upper 450 m of the ocean) shows that flow during much of the year is baroclinic (strong vertical shear). Model layer thickness reveals coastal Kelvin waves propagating along the coast, traveling the entire perimeter of the Andaman Sea and the Bay of Bengal. This wave excites westward propagating Rossby waves into the interior of the bay. Time series analysis of transport calculations yield significant peaks in the 20‐ to 30‐day range and 50‐ to 60‐day range which are not likely directly forced by the applied wind stress.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/91JC01045
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1991
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  • 3
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    Velocity structure and transport of the Indonesian Throughflow in the major straits restricting flow into the Indian Ocean
    American Geophysical Union (AGU) ; 2001
    In:  Journal of Geophysical Research: Oceans Vol. 106, No. C9 ( 2001-09-15), p. 19527-19546
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 106, No. C9 ( 2001-09-15), p. 19527-19546
    Abstract: An array of shallow pressure gauge pairs is used to determine shallow geostrophic flow relative to an unknown mean velocity in the five principal straits that separate the eastern Indian Ocean from the interior Indonesian seas (Lombok Strait, Sumba Strait, Ombai Strait, Savu/Dao Straits, and Timor Passage). Repeat transects across the straits over several tidal cycles with a 150‐kHz acoustic Doppler current profiler were made during three separate years, and provide a first look at the lateral and vertical structure of the upper throughflow in these straits as well as a means of “leveling” the pressure gauge data to determine the mean shallow velocity and provide transport estimates. We estimate a total 2‐year average transport for 1996–1997 through Lombok, Ombai, and Timor Straits as 8.4±3.4 Sv toward the Indian Ocean. The flow structure in the upper 200 m is seen to be similar in Lombok, Sumba, and Ombai Straits, with a division into two layers, governed by different dynamics, where the upper layer episodically flows away from the Indian Ocean. Laterally, flow tends to be strongest in the deepest parts of the channel, with the exception of Lombok Strait which shows a consistent intensification of flow toward the western side. Eastward flowing northern boundary currents in Sumba and Ombai Straits suggest that the South Java Current may penetrate to the Banda Sea, farther eastward than previously documented. Although additional observations are required for a conclusive comparison, the estimated transport time series suggest differences in timing of outflow into the Indian Ocean relative to inflow from the Pacific of a size that could significantly impact the Banda Sea thermocline structure.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/2000JC000577
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2001
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  • 4
    Online Resource
    Online Resource
    Seasonal to interannual modes of sea level variability in the western Pacific and eastern Indian oceans
    American Geophysical Union (AGU) ; 1999
    In:  Geophysical Research Letters Vol. 26, No. 3 ( 1999-02-01), p. 365-368
    Details
    In: Geophysical Research Letters, American Geophysical Union (AGU), Vol. 26, No. 3 ( 1999-02-01), p. 365-368
    Type of Medium: Online Resource
    ISSN: 0094-8276
    URL: Article
    DOI: 10.1029/1998GL900280
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1999
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    detail.hit.zdb_id: 7403-2
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  • 5
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    Temperature and salinity variability in the exit passages of the Indonesian Throughflow
    Elsevier BV ; 2003
    In:  Deep Sea Research Part II: Topical Studies in Oceanography Vol. 50, No. 12-13 ( 2003-7), p. 2183-2204
    Details
    In: Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier BV, Vol. 50, No. 12-13 ( 2003-7), p. 2183-2204
    Type of Medium: Online Resource
    ISSN: 0967-0645
    URL: Article
    DOI: 10.1016/S0967-0645(03)00052-3
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2003
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  • 6
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    From the Oceans to the Cloud: Opportunities and Challenges for Data, Models, Computation and Workflows
    Frontiers Media SA ; 2019
    In:  Frontiers in Marine Science Vol. 6 ( 2019-5-21)
    Details
    In: Frontiers in Marine Science, Frontiers Media SA, Vol. 6 ( 2019-5-21)
    Type of Medium: Online Resource
    ISSN: 2296-7745
    URL: Article
    DOI: 10.3389/fmars.2019.00211
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2019
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  • 7
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    Seasonal Variations of Upper Ocean Transport from the Pacific to the Indian Ocean via Indonesian Straits*
    American Meteorological Society ; 1999
    In:  Journal of Physical Oceanography Vol. 29, No. 11 ( 1999-11), p. 2930-2944
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 29, No. 11 ( 1999-11), p. 2930-2944
    Type of Medium: Online Resource
    ISSN: 0022-3670 , 1520-0485
    URL: Article
    DOI: 10.1175/1520-0485(1999)029〈2930:SVOUOT〉2.0.CO;2
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 1999
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  • 8
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    Contribution of equatorial Pacific winds to southern tropical Indian Ocean Rossby waves
    American Geophysical Union (AGU) ; 2001
    In:  Journal of Geophysical Research: Oceans Vol. 106, No. C2 ( 2001-02-15), p. 2407-2422
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 106, No. C2 ( 2001-02-15), p. 2407-2422
    Abstract: Westward propagating features, identified as Rossby waves, have been observed and modeled in the southern tropical Indian Ocean (STIO) between 10° and 30°S. These STIO Rossby waves, which have broad zonal and meridional extents, could interact with the westward flowing South Equatorial Current (SEC) as well as coastal currents on the south shore of Java (the South Java Current) and along the western shore of Australia (the Leeuwin Current). Previous work has attributed these waves to variations in wind stress along the west coast of Australia, Ekman pumping in the STIO interior, and a combination of both. This study investigates the importance of a third factor: remotely forced coastal Kelvin waves. Observations show that changes in wind stress curl in the eastern equatorial Pacific create annual upwelling and downwelling Rossby waves. Numerical model results confirm previous studies that demonstrate these waves, upon reaching the western boundary of the Pacific, create poleward propagating coastal Kelvin waves along the western shore of the Irian Jaya/Australia land mass. Direct observations of annual sea level variations along the northwest coast of Australia show a phase lag from the northernmost station to the southernmost that is not explained by direct wind forcing, suggesting that this signal is propagating from the Indonesian seas. It is shown in this work that when these waves reach the Indian Ocean, they are in phase with the local Ekman forcing and enhance the STIO Rossby waves. In the model the signal from the equatorial Pacific accounts for almost 80% of the energy of the STIO Rossby wave near the coast of Australia and 10% of the energy offshore.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/1999JC000031
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2001
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  • 9
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    Marine Debris Polymers on Main Hawaiian Island Beaches Sea Surface, and Seafloor
    American Chemical Society (ACS) ; 2019
    In:  Environmental Science & Technology Vol. 53, No. 21 ( 2019-11-05), p. 12218-12226
    Details
    In: Environmental Science & Technology, American Chemical Society (ACS), Vol. 53, No. 21 ( 2019-11-05), p. 12218-12226
    Type of Medium: Online Resource
    ISSN: 0013-936X , 1520-5851
    URL: Article
    URL: Article
    URL: Article
    DOI: 10.1021/acs.est.9b03561
    DOI: 10.1021/acs.est.9b03561.s001
    DOI: 10.1021/acs.est.9b03561.s002
    RVK:
    AR 10100
    Language: English
    Publisher: American Chemical Society (ACS)
    Publication Date: 2019
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  • 10
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    The Indonesian seas and their role in the coupled ocean–climate system
    Springer Science and Business Media LLC ; 2014
    In:  Nature Geoscience Vol. 7, No. 7 ( 2014-7), p. 487-492
    Details
    In: Nature Geoscience, Springer Science and Business Media LLC, Vol. 7, No. 7 ( 2014-7), p. 487-492
    Type of Medium: Online Resource
    ISSN: 1752-0894 , 1752-0908
    URL: Article
    DOI: 10.1038/ngeo2188
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2014
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    SSG: 16,13
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