New findings on the route of heat transport between the Indo-Pacific and Southern Ocean

Liao, Enhui; Yan, Xiao‐Hai; Jiang, Yuwu; Kidwell, Autumn

doi:10.1007/s00382-018-4436-4

Cited by 4 publications

(3 citation statements)

References 30 publications

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“…Significant cooling trends during the GSWS mainly occurred in the upper layer of the tropical SWIO (10°–20°S, 60°–90°E), in consistency with the EOF patterns shown in Figure 1. Similar cooling patterns were reported in several previous studies (e.g., Li, Han, & Zhang, 2017; Liao et al., 2019), but the relevant causes have not been explained well.…”

Section: Resultssupporting

confidence: 86%

“…Previous studies suggested that the local cyclonic wind anomalies and a high sea level anomaly during the GSWS induce an anomalous southward flow in the SEIO. Therefore, the anomalous heat from the Pacific was not evenly spread over the entire SIO but was trapped in the SEIO (Li, Han, & Zhang, 2017; Liao et al., 2019). Significant cooling trends during the GSWS mainly occurred in the upper layer of the tropical SWIO (10°–20°S, 60°–90°E), in consistency with the EOF patterns shown in Figure 1.…”

Section: Resultsmentioning

confidence: 99%

“…The surface warm water in the western Pacific piled up by enhanced Pacific trade winds during the 2000s joined the ITF, inducing a significant warming in the upper layer of SIO. Particularly, the excessive heat brought by the ITF was not evenly distributed over the SIO; instead, the excessive heat was mostly stored in the upper 700 m of Southeast Indian Ocean (SEIO) during the period 2003–2012 (Li, Han, & Zhang, 2017; Liao et al., 2019). The increased ITF heat transport was closely related to a transition of the Interdecadal Pacific Oscillation (IPO) from the positive to the negative phase during the recent GSWS (England et al., 2014; Kosaka & Xie, 2013; Li, Han, & Zhang, 2017; Nieves et al., 2015).…”

Section: Introductionmentioning

confidence: 99%

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Decadal Cooling Events in the South Indian Ocean During the Argo Era

Huang

Zhuang

et al. 2022

JGR Oceans

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Despite the rapid warming in the south Indian Ocean (SIO) during the recent two decades, the upper 300 m of the tropical southwest Indian Ocean (SWIO) experienced significant cooling during 2005–2011. The decreasing rate of the observed temperature reached −0.50 ± 0.1°C/decade. Heat budget analysis reveals that the cooling trend over SWIO results from the competing effect between local air‐sea heat flux and horizontal heat advection. Moreover, all the three observational datasets indicate that in the subtropical SIO, a prolonged cooling event occurred beneath the thermocline during 2010–2016. Although there exist some discrepancies between the observations and estimating the circulation and climate of the ocean (ECCO) reanalysis before 2010, the observations and ECCO reanalysis agree in terms of the post–2010 temperature variability in the intermediate layer of the subtropical region, probably because of the better constraint of the ECCO assimilation product by the increased sampling of Argo floats in the deeper ocean. The heat budget analysis indicates that during the period 2010–2016, the decadal cooling in the 400–1,000 m layer is primarily modulated by vertical ocean advection, and the horizontal ocean advection makes a secondary contribution. This study expands our knowledge of the decadal temperature variability and heat balance in the SIO during the Argo era.

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%