Interannual variations of intense typhoon activity

Chan, Johnny C. L.

doi:10.3402/tellusa.v59i4.15019

Cited by 8 publications

(8 citation statements)

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“…The first mode is, in addition, correlated with STYDAY, ACES and PDIS at the 95% significant level based on the t ‐test (Table 1). The increase in TCDAY, ACE and PDI during the El Niño is consistent with the previous studies [ Camargo and Sobel , 2005; Chan , 2007].…”

Section: Resultssupporting

confidence: 92%

Relationship between typhoon activity and upper ocean heat content

Wada¹,

Chan²

2008

Geophysical Research Letters

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A 44‐year mean distribution of tropical cyclone heat potential (TCHP), a measure of the oceanic heat content from the surface to the 26°C‐isotherm depth, shows that TCHP is locally high in the western North Pacific (WNP). TCHP varies on interannual time scales and has a relationship with tropical cyclone (TC) activity. The third mode of an empirical orthogonal function analysis of TCHP shows that an increase in the total number of TCs is accompanied with a warm central Pacific and cool WNP. Negative TCHP anomalies in the WNP suggest that an increase in total number of TCs results in cooling due to their passages. On the other hand, the first mode shows that the number of super typhoons increases in mature El Niño years. An increase in accumulated TCHP is related to the increase in the number of super typhoons due to long duration.

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Section: Resultssupporting

confidence: 92%

Relationship between typhoon activity and upper ocean heat content

Wada¹,

Chan²

2008

Geophysical Research Letters

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“…Unlike the results of section 4.1 and 4.2, Table 6 shows that indicates that there is little ENSO related variability in West Pacific region TC activity overall. This would agree with the results of Chan (1985), Wu and Lau (1992), Lander (1994), Wang and Chan, (2002), and Chan (2007, 2009. Traditionally, in this basin it has been recognized that TC activity is possible throughout the year, however, the NH spring (fall) are times where this basin is minimally (maximally) active.…”

Section: West Pacific Ocean Variabilitysupporting

confidence: 81%

The Interannual and Interdecadal Variability in Hurricane Activity

Lupo¹

2011

Recent Hurricane Research - Climate, Dynamics, and Societal Impacts

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“…ENSO is a major driver of northwest Pacific tropical cyclones, but variations in intense tropical cyclone frequency are driven by planetary‐scale atmospheric changes associated with ENSO, rather than sea surface temperatures alone. Sobel et al (), J. Chan (), and Camargo and Sobel () find a strong positive correlation ( r = 0.6 to 0.7, ≥95% level) between accumulated cyclone energy and ENSO, driven by atmospheric conditions represented by the Niño 3.4 index, across all seasons. Camargo et al (, and references therein) discuss the complex influence that ENSO has on many other factors affecting tropical cyclones, including genesis location, tracks and track recurvature.…”

Section: Atmospheric Hazardsmentioning

confidence: 95%

Correlations Between Extreme Atmospheric Hazards and Global Teleconnections: Implications for Multihazard Resilience

Steptoe

Jones

Fox

2018

Reviews of Geophysics

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Occurrences of concurrent extreme atmospheric hazards represent a significant area of uncertainty for organizations involved in disaster mitigation and risk management. Understanding risks posed by natural disasters and their relationship with global climate drivers is crucial in preparing for extreme events. In this review we quantify the strength of the physical mechanisms linking hazards and atmosphere‐ocean processes. We demonstrate how research from the science community may be used to support disaster risk reduction and global sustainable development efforts. We examine peer‐reviewed literature connecting 16 regions affected by extreme atmospheric hazards and eight key global drivers of weather and climate. We summarize current understanding of multihazard disaster risk in each of these regions and identify aspects of the global climate system that require further investigation to strengthen our resilience in these areas. We show that some drivers can increase the risk of concurrent hazards across different regions. Organizations that support disaster risk reduction, or underwrite exposure, in multiple regions may have a heightened risk of facing multihazard losses. We find that 15 regional hazards share connections via the El Niño–Southern Oscillation, with the Indian Ocean Dipole, North Atlantic Oscillation, and the Southern Annular Mode being secondary sources of significant regional interconnectivity. From a hazard perspective, rainfall over China shares the most connections with global drivers and has links to both Northern and Southern Hemisphere modes of variability. We use these connections to assess the global likelihood of concurrent hazard occurrence in support of multihazard resilience and disaster risk reduction goals.

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Interannual variations of intense typhoon activity

Cited by 8 publications

References 0 publications

Relationship between typhoon activity and upper ocean heat content

Relationship between typhoon activity and upper ocean heat content

The Interannual and Interdecadal Variability in Hurricane Activity

Correlations Between Extreme Atmospheric Hazards and Global Teleconnections: Implications for Multihazard Resilience

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