An Intersection of Oceanic Waveguides: Variability in the Indonesian Throughflow Region

Wijffels, Susan E.; Meyers, Gary

doi:10.1175/1520-0485(2004)034<1232:aioowv>2.0.co;2

Cited by 278 publications

(306 citation statements)

References 25 publications

Supporting

Mentioning

282

Contrasting

Unclassified

Order By: Relevance

“…Equatorial Indian Ocean wind energy propagates along the Sumatra-Java-Nusa Tenggara waveguide to penetrate the Savu Sea, the western Banda Sea and Makassar Strait, thus having an impact on the western internal seas. Hence the region comprises the intersection of two ocean waveguides, as first predicted by Clarke and Liu [1994] and explored more recently by Wijffels and Meyers [2004].…”

Section: Introductionmentioning

confidence: 95%

“…The potential predictability of ocean dynamics in the proximity of the ITF has attracted considerable interest in recent years [Qiu et al, 1999;Chong et al, 2000;Potemra et al, 2002;Syamsudin et al, 2004;Wijffels and Meyers, 2004;Iskandar et al, 2005Iskandar et al, , 2006Yu and Potemra, 2006;Atmadipoera et al, 2009]. For example, Wijffels and Meyers [2004] explored observation-based temperature and sea level variability within the Indonesian seas and southeast Indian Ocean.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Wijffels and Meyers [2004] explored observation-based temperature and sea level variability within the Indonesian seas and southeast Indian Ocean. A lagged partial regression technique revealed that on interannual timescales anomalies from a mean seasonal cycle of temperature and sea level on seasonal-to-interannual time scales can be largely understood in terms of free Kelvin and Rossby waves generated by remote zonal winds along the equator of the Indian and Pacific Oceans, with local wind forcing appearing to play a minor role.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pathways of intraseasonal variability in the Indonesian Throughflow region

Schiller

Wijffels

Sprintall

et al. 2010

Dynamics of Atmospheres and Oceans

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pathways of intraseasonal variability in the Indonesian Throughflow region

Schiller

Wijffels

Sprintall

et al. 2010

Dynamics of Atmospheres and Oceans

View full text Add to dashboard Cite

“…Murtugudde et al [1998] verified this with a simple model, and found a large increase in the ITF during the 1994 IOD event. Wijffels and Meyers [2004] showed that ENSO signals enter the IO via the Indonesian Passages through the propagation of coastal Kelvin waves and subsequent Rossby waves from western Australia, though the latter are attenuated in the central IO by the effect of local wind-forcing. In the band 5°-15°S Ekman pumping also strongly modifies interannual waves propagating westward from the eastern boundary [Masumoto and Meyers, 1998].…”

Section: Introductionmentioning

confidence: 99%

A link between low‐frequency mesoscale eddy variability around Madagascar and the large‐scale Indian Ocean variability

2006

View full text Add to dashboard Cite

[1] A connection is shown to exist between the mesoscale eddy activity around Madagascar and the large-scale interannual variability in the Indian Ocean. We use the combined TOPEX/Poseidon-ERS sea surface height (SSH) data for the period 1993-2003. The SSH-fields in the Mozambique Channel and east of Madagascar exhibit a significant interannual oscillation. This is related to the arrival of large-scale anomalies that propagate westward along 10°-15°S in response to the Indian Ocean dipole (IOD) events. Positive (negative) SSH anomalies associated to a positive (negative) IOD phase induce a shift in the intensity and position of the tropical and subtropical gyres. A weakening (strengthening) results in the intensity of the South Equatorial Current and its branches along east Madagascar. In addition, the flow through the narrows of the Mozambique Channel around 17°S increases (decreases) during periods of a stronger and northward (southward) extension of the subtropical (tropical) gyre. Interaction between the currents in the narrows and southward propagating eddies from the northern Channel leads to interannual variability in the eddy kinetic energy of the central Channel in phase with the one in the SSH-field.

show abstract

“…Furthermore, positive correlation coefficients connect the western tropical North Pacific Ocean with the Indonesian Seas and the tropical South Indian Ocean from lag 0 to 110 (indicated by green arrows and black dashed contour in Figure 3). The transmission of interannual signals from the western tropical Pacific Ocean into the Indian Ocean has been noted in earlier studies and is associated with Rossby waves [Meyers, 1996;Wijffels and Meyers, 2004;Cai et al, 2005;Alory et al, 2007]; however, further analysis of the mechanism is needed considering the long time scale of the IPO. …”

Section: Spatial Correlation Analysismentioning

confidence: 84%

Evaluating SODA for Indo-Pacific Ocean decadal climate variability studies

Vargas-Hernández

Wijffels

Meyers

et al. 2014

J. Geophys. Res. Oceans

Self Cite

View full text Add to dashboard Cite

Estimates of changes in upper ocean temperature, heat content, and sea level are dependent on the coverage of subsurface observations in space and time. Historically, these data are sparse, which has limited our understanding of ocean climate variability and change mechanisms. Ocean state estimates, which effectively represent a model synthesis and integration of the available observations, including internal observations in the ocean and surface forcing, help to address the inhomogeneity of sparse observations in space and time. Here we evaluate the representativeness of ocean state estimates from the Simple Ocean Data Assimilation Version 2.2.4 (SODA) data for studying Indo-Pacific Ocean decadal temperature and sea level variability over the period . The SODA data are evaluated against independent sea level anomalies from long-record tide gauges at Midway Island and Fremantle, reconstructed sea surface height anomalies, and sea surface height anomalies from TOPEX/Poseidon satellite altimeter observations at the decadal time scale. This study demonstrates that SODA captures the characteristic Interdecadal Pacific Oscillation (IPO) over the upper 200 m, and accurately represents these decadal changes against the independent observations. The SODA-product shows a meridional asymmetry of patterns that connect the western tropical Pacific and the Indian Ocean, apparently in relation to IPO changes. Regional sea level at the Midway Island and Fremantle tide gauges confirm this decadal connection and the relationship with the IPO. We concluded that SODA is potentially a useful tool to examine ocean decadal climate variability across the Indo-Pacific Ocean.

show abstract

An Intersection of Oceanic Waveguides: Variability in the Indonesian Throughflow Region

Cited by 278 publications

References 25 publications

Pathways of intraseasonal variability in the Indonesian Throughflow region

Pathways of intraseasonal variability in the Indonesian Throughflow region

A link between low‐frequency mesoscale eddy variability around Madagascar and the large‐scale Indian Ocean variability

Evaluating SODA for Indo-Pacific Ocean decadal climate variability studies

Contact Info

Product

Resources

About