Contemporary sea level in the Chagos Archipelago, central Indian Ocean

Dunne, R. P.; Barbosa, Susana; Woodworth, Philip L.

doi:10.1016/j.gloplacha.2011.11.009

Cited by 31 publications

(20 citation statements)

References 61 publications

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“…Similar patterns, evident in the thermosteric (i.e., temperature related) sea level derived from in situ observations for the upper 700 m (National Research Council 2012) and in reconstructed sea level data(Fig. 8)are well simulated by several ocean models (e.g.,Timmermann et al 2010;Schwarzkopf and Böning 2011;Dunne et al 2012). The sea level fall in the southwest tropical Indian Ocean also agrees with the observed subsurface cooling associated with the shoaling thermocline in the same latitudinal band…”

supporting

confidence: 82%

Indian Ocean Decadal Variability: A Review

Han

Vialard

McPhaden

et al. 2014

Bulletin of the American Meteorological Society

245

176

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supporting

confidence: 82%

Indian Ocean Decadal Variability: A Review

Han

Vialard

McPhaden

et al. 2014

Bulletin of the American Meteorological Society

245

176

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“…All of these decadal signals are regional, or even basin scale, in extent, rather than being particularly coastal. Nevertheless, the temperature and sea level variability associated with them can result in coastal impacts in, for example, coral bleaching or flooding of low-lying coral islands (e.g., Dunne et al 2012).…”

Section: Decadal Sea Level Variabilitymentioning

confidence: 99%

Forcing Factors Affecting Sea Level Changes at the Coast

et al. 2019

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We review the characteristics of sea level variability at the coast focussing on how it differs from the variability in the nearby deep ocean. Sea level variability occurs on all timescales, with processes at higher frequencies tending to have a larger magnitude at the coast due to resonance and other dynamics. In the case of some processes, such as the tides, the presence of the coast and the shallow waters of the shelves results in the processes being considerably more complex than offshore. However, 'coastal variability' should not always be considered as 'short spatial scale variability' but can be the result of signals transmitted along the coast from 1000s km away. Fortunately, thanks to tide gauges being necessarily located at the coast, many aspects of coastal sea level variability can be claimed to be better understood than those in the deep ocean. Nevertheless, certain aspects of coastal variability remain under-researched, including how changes in some processes (e.g., wave setup, river runoff) may have contributed to the historical mean sea level records obtained from tide gauges which are now used routinely in large-scale climate research.

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“…Fig. 7b) (e.g., Han et al 2010;Timmermann et al 2010;Dunne et al 2012;NRC 2012). Experiments using an OGCM and an atmospheric GCM (AGCM) show that surface winds associated with enhanced Indian Ocean Walker and Hadley circulations are the major force for this basin-wide pattern ( Fig.…”

Section: Forcing and Processesmentioning

confidence: 99%

Spatial Patterns of Sea Level Variability Associated with Natural Internal Climate Modes

et al. 2016

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Sea level rise (SLR) can exert significant stress on highly populated coastal societies and low-lying island countries around the world. Because of this, there is huge societal demand for improved decadal predictions and future projections of SLR, particularly on a local scale along coastlines. Regionally, sea level variations can deviate considerably from the global mean due to various geophysical processes. These include changes of ocean circulations, which partially can be attributed to natural, internal modes of variability in the complex Earth's climate system. Anthropogenic influence may also contribute to regional sea level variations. Separating the effects of natural climate modes and anthropogenic forcing, however, remains a challenge and requires identification of the imprint of specific climate modes in observed sea level change patterns. In this paper, we review our current state of knowledge about spatial patterns of sea level variability associated with natural climate modes on interannual-to-multidecadal timescales, with particular focus on decadal-to-multidecadal variability. Relevant climate modes and our current state of understanding their associated sea level patterns and driving mechanisms are elaborated separately for the Pacific, the Indian, the Atlantic, and the Arctic and Southern Oceans. We also discuss the issues, challenges and future outlooks for understanding the regional sea level patterns associated with climate modes. Effects of these internal modes have to be taken into account in order to achieve more reliable near-term predictions and future projections of regional SLR.

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Contemporary sea level in the Chagos Archipelago, central Indian Ocean

Cited by 31 publications

References 61 publications

Indian Ocean Decadal Variability: A Review

Indian Ocean Decadal Variability: A Review

Forcing Factors Affecting Sea Level Changes at the Coast

Spatial Patterns of Sea Level Variability Associated with Natural Internal Climate Modes

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