Title |
Recent decrease in typhoon destructive potential and global warming implications
|
---|---|
Published in |
Nature Communications, May 2015
|
DOI | 10.1038/ncomms8182 |
Pubmed ID | |
Authors |
I-I Lin, Johnny C.L. Chan |
Abstract |
Typhoons (tropical cyclones) severely impact the half-billion population of the Asian Pacific. Intriguingly, during the recent decade, typhoon destructive potential (Power Dissipation Index, PDI) has decreased considerably (by ∼35%). This decrease, paradoxically, has occurred despite the increase in typhoon intensity and ocean warming. Using the method proposed by Emanuel (in 2007), we show that the stronger negative contributions from typhoon frequency and duration, decrease to cancel the positive contribution from the increasing intensity, controlling the PDI. Examining the typhoons' environmental conditions, we find that although the ocean condition became more favourable (warming) in the recent decade, the atmospheric condition 'worsened' at the same time. The 'worsened' atmospheric condition appears to effectively overpower the 'better' ocean conditions to suppress PDI. This stronger negative contribution from reduced typhoon frequency over the increased intensity is also present under the global warming scenario, based on analysis of the simulated typhoon data from high-resolution modelling. |
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Geographical breakdown
Country | Count | As % |
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United States | 3 | 19% |
United Kingdom | 2 | 13% |
Italy | 1 | 6% |
Unknown | 10 | 63% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 14 | 88% |
Scientists | 1 | 6% |
Science communicators (journalists, bloggers, editors) | 1 | 6% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Austria | 1 | <1% |
United Kingdom | 1 | <1% |
Jamaica | 1 | <1% |
Taiwan | 1 | <1% |
Spain | 1 | <1% |
United States | 1 | <1% |
Kiribati | 1 | <1% |
Unknown | 99 | 93% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 19 | 18% |
Researcher | 19 | 18% |
Student > Bachelor | 16 | 15% |
Student > Master | 9 | 8% |
Professor | 5 | 5% |
Other | 11 | 10% |
Unknown | 27 | 25% |
Readers by discipline | Count | As % |
---|---|---|
Earth and Planetary Sciences | 43 | 41% |
Environmental Science | 16 | 15% |
Agricultural and Biological Sciences | 3 | 3% |
Physics and Astronomy | 3 | 3% |
Mathematics | 2 | 2% |
Other | 9 | 8% |
Unknown | 30 | 28% |