Recipe for Banda Sea water

Waworuntu, Jorina; Fine, Rana A.; Olson, Donald B.; Gordon, Arnold L.

doi:10.1357/002224000321511016

Cited by 18 publications

(16 citation statements)

References 20 publications

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“… Kinkade et al [1997] argued that convective processes could explain much of the cooling, as dry air from the Australian desert passes over the water. Moore et al [2003] however, show that the pigment distributions in the Banda Sea in September 1998 were the result of wind‐driven upwelling [ Gordon and Susanto , 2001; Waworuntu et al , 2000], an idea first promulgated by Wyrtki [1961]. The monthly composites of ocean color favor wind‐driven upwelling as an explanation for the variability seen in the Banda Sea since the initial appearance of a change in ocean color occurs in the eastern part of the Banda Sea, where wind‐driven upwelling would be expected.…”

Section: Discussionmentioning

confidence: 99%

Ocean color variability in the Indonesian Seas during the SeaWiFS era

Susanto

Moore²,

Marra

2006

Geochem Geophys Geosyst

139

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[1] More than 6 years of satellite-derived ocean color (SeaWiFS) and 7 years of sea surface temperature (AVHRR) and sea surface wind (ERS1/2, NSCAT, and QuikSCAT) are investigated for the Indonesian Seas. Harmonic analysis and monthly means in ocean color indicate that during the southeast AsiaAustralia monsoon southeasterly wind from Australia generates upwelling and brings cooler and nutrientrich water near the surface, enhancing productivity and increasing ocean color in the Banda Sea and the southern coasts of Jawa (Java)-Sumatra. Conditions are reversed during the northwest monsoon. The northwest wind induces downwelling and produces a weaker biological response in terms of ocean color. Anomalous winds associated with the 1997-1998 El Niño/La Niña events coinciding with the Indian Ocean Dipole (IOD) produced significant departures from the 6-year monthly mean in both magnitude and timing of the seasonal response to the southeast monsoon. Ocean color intensified in the upwelling region along the southern coast of Jawa-Sumatra, and the area of increased amplitude extended westward and prolonged the southeast monsoon period. In addition, localized minimum values of ocean color are observed along the exit pathways of the Indonesian Throughflow.

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Section: Discussionmentioning

confidence: 99%

Ocean color variability in the Indonesian Seas during the SeaWiFS era

Susanto

Moore²,

Marra

2006

Geochem Geophys Geosyst

139

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“…The denser South Pacific water masses are distinctly saltier than the North Pacific upper waters. Within the Banda Sea, these water masses are modified by tidally forced mixing, wind‐driven upwelling, and surface heat and freshwater fluxes to form the distinctive Indonesian sea profile of relatively isohaline water from the thermocline to near bottom [ Ffield and Gordon , 1992; Bray et al , 1996; Hautala et al , 1996; Waworuntu et al , 2000; Koch‐Larrouy et al , 2008].…”

Section: Introductionmentioning

confidence: 99%

Direct estimates of the Indonesian Throughflow entering the Indian Ocean: 2004–2006

Sprintall¹,

Wijffels²,

Molcard³

et al. 2009

J. Geophys. Res.

417

468

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[1] The mean and variable transport of the Indonesian Throughflow (ITF) are determined from full-depth velocity measurements in the three major exit passages of Lombok Strait, Ombai Strait, and Timor Passage from January 2003 through December 2006. Collectively, these passages convey the full-depth transport and stratification profile of the ITF from the Pacific Ocean to the Indian Ocean. To first order, the seasonal cycle of transport in the thermocline ($100-150 m) in all three exit straits is dominated by regional monsoon forcing, with maximum ITF during the southeast monsoon. During the northwest monsoon, the surface transport relaxes in Timor and weakly reverses in Ombai and Lombok, so the main core of the ITF is subsurface. Below the thermocline, semiannual reversals occur in all three straits during the monsoon transitions in response to the passage of Indian Ocean wind-forced Kelvin waves. However, the reversals occur over different depth levels in each passage reflecting the influence of different sill depths along the coastal waveguide. The seasonal cycle of depth-integrated transports in Lombok and Ombai are strongly out of phase with Timor Passage, suggesting that the subthermocline flow is largely gated by these Kelvin waves. Despite the different seasonal transport phases, interannual anomalies in all three passages are remarkably similar, particularly during the strong positive Indian Ocean Dipole event in 2006 when transport in the surface layer is toward the Indian Ocean and reversed below. The deep reversals are likely in response to a series of Kelvin waves driven by anomalous zonal winds in the equatorial Indian Ocean. Total mean transport over the 3-year period is À2.6 Sv in Lombok Strait (i.e., toward the Indian Ocean), À4.9 Sv in Ombai Strait, and À7.5 Sv in Timor Passage. The transport in Timor Passage is nearly twice as large as historical estimates and represents half of the À15 Sv full-depth ITF transport that enters the Indian Ocean.

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“…Comparatively, few studies based on CFCs and/or sulfur hexafluoride (SF 6 ) have been carried out in Southeast Asian seas, including the SCS. Fieux et al () studied the Indonesian throughflow based on measured CFC data, and Waworuntu et al () studied the pathway of inflow water from the WP Ocean to the Banda Sea using CFC‐11 data. Recently, Huang and Tanhua () studied ventilation and C ant storage of the Sulu Sea using measurements of SF 6 and CFCs.…”

Section: Introductionmentioning

confidence: 99%

Observations of the Intermediate Water Exchange Between the South China Sea and the Pacific Ocean Deduced From Transient Tracer Measurements

et al. 2018

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The South China Sea (SCS) is the largest semienclosed marginal sea in the western Pacific (WP) and connects to the west Pacific through the Luzon Strait (LU). In this study, we use the observation of transient tracer chlorofluorocarbon-12 (CFC-12) to calculate the ventilation time scales of the SCS, LU, and WP. The CFC-12 and oxygen data are used together to identify the sandwiched structure vertically of the flows across the LU. The CFC-12 and oxygen distributions reveal a pronounced decrease westward across the LU and a slight decrease southward in the transport of the SCS. The mean age gradient of the salinity minimum (S min ) water between the WP and the northern SCS could be a consequence of intensive mixing and entrainment of the inflow water from the WP. An expected difference in age between the LU and SSCS is verified to reflect the transit time for the given water layers in the SCS. Thus, a mean transit time of 77 ± 20 years is estimated for the intermediate water in the SCS interior.

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Recipe for Banda Sea water

Cited by 18 publications

References 20 publications

Ocean color variability in the Indonesian Seas during the SeaWiFS era

Ocean color variability in the Indonesian Seas during the SeaWiFS era

Direct estimates of the Indonesian Throughflow entering the Indian Ocean: 2004–2006

Observations of the Intermediate Water Exchange Between the South China Sea and the Pacific Ocean Deduced From Transient Tracer Measurements

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