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Tropical cyclone-related socio-economic losses in the western North Pacific region

Welker, Christoph and Faust, Eberhard (2013) Tropical cyclone-related socio-economic losses in the western North Pacific region. Natural Hazards and Earth System Sciences (NHESS), 13, pp. 115-124. Copernicus Publications. DOI: 10.5194/nhess-13-115-2013 ISSN 1561-8633

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Abstract

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 NatCat-SERVICE 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.

Item URL in elib:https://elib.dlr.de/95743/
Document Type:Article
Title:Tropical cyclone-related socio-economic losses in the western North Pacific region
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Welker, ChristophDLR, IPAUNSPECIFIED
Faust, EberhardMunich RE, MünchenUNSPECIFIED
Date:2013
Journal or Publication Title:Natural Hazards and Earth System Sciences (NHESS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.5194/nhess-13-115-2013
Page Range:pp. 115-124
Publisher:Copernicus Publications
ISSN:1561-8633
Status:Published
Keywords:tropical cyclones, natural desaster
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Ponater, Dr.rer.nat. Michael
Deposited On:31 Mar 2015 14:34
Last Modified:10 Jan 2019 15:54

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