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| Titel |
Tropical cyclone-related socio-economic losses in the western North Pacific region |
| VerfasserIn |
C. Welker, E. Faust |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 1 ; Nr. 13, no. 1 (2013-01-24), S.115-124 |
| Datensatznummer |
250017536
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| Publikation (Nr.) |
 copernicus.org/nhess-13-115-2013.pdf |
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| Zusammenfassung |
| The western North Pacific (WNP) is the area of the world
most frequently affected by tropical cyclones (TCs). However, little is
known about the socio-economic impacts of TCs in this region, probably
because of the limited relevant loss data. Here, loss data from Munich RE's
NatCatSERVICE database is used, a high-quality and widely consulted
database of natural disasters. In the country-level loss normalisation
technique we apply, the original loss data are normalised to present-day
exposure levels by using the respective country's nominal gross domestic
product at purchasing power parity as a proxy for wealth. The main focus of
our study is on the question of whether the decadal-scale TC variability
observed in the Northwest Pacific region in recent decades can be shown to
manifest itself economically in an associated variability in losses. It is
shown that since 1980 the frequency of TC-related loss events in the WNP
exhibited, apart from seasonal and interannual variations, interdecadal
variability with a period of about 22 yr – driven primarily by
corresponding variations of Northwest Pacific TCs. Compared to the
long-term mean, the number of loss events was found to be higher (lower)
by 14% (9%) in the positive (negative) phase of the decadal-scale
WNP TC frequency variability. This was identified for the period 1980–2008 by
applying a wavelet analysis technique. It was also possible to demonstrate
the same low-frequency variability in normalised direct economic losses
from TCs in the WNP region. The identification of possible physical
mechanisms responsible for the observed decadal-scale Northwest Pacific
TC variability will be the subject of future research, even if suggestions
have already been made in earlier studies. |
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