Estimation of maximum seasonal tropical cyclone damage in the Atlantic using climate models

Lavender, Sally L. ORCID: https://orcid.org/0000-0003-4785-1569 and Walsh, Kevin J. E. and Utembe, Steven and Caron, Louis‑Philippe and Guishard, Mark (2021) Estimation of maximum seasonal tropical cyclone damage in the Atlantic using climate models. Natural Hazards. pp. 1-14. ISSN 0921-030X


Abstract

There are several different estimates of the observed cyclone damage potential of tropical cyclones based on observations of size, intensity and track. For the analysis of climate model data, previous work identified an index, the cyclone damage potential climate index (CDPClimate), based on relative sea surface temperature (SST) and tropical cyclone steering flow to estimate the damage potential in climate models. Using millennia-long climate models, CDPClimate is estimated for the North Atlantic basin and compared against values from reanalyses and the observed damage potential. The peak in SSTs in the cyclone main development region with respect to the tropical mean SSTs is smaller in these models than reanalyses, resulting in smaller variations in CDPClimate. Although the year 1995 had the highest observed cyclone damage potential, the year 2010 is a maximum for CDPClimate in the reanalysis data. The models exceed this 2010 value in less than 1% of model years. Using a model with 100 ensemble members, the variability in CDPClimate is examined further. The interannual variability of the ensemble mean results has a very high correlation (R = 0.95) with reanalyses. The high decadal variability is evident and interannual variability is found to have increased during the 30 years after 1981 relative to those prior. The 2010 ensemble mean value is exceeded in other years by individual ensemble members 1.1% of the time. The results from this study suggest that although it is possible to exceed the observed CDP, this is rare in the current climate. However, this study does not consider changes as we move to future climates.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Applied Climate Sciences (1 Aug 2018 -)
Faculty/School / Institute/Centre: Current - Institute for Life Sciences and the Environment - Centre for Applied Climate Sciences (1 Aug 2018 -)
Date Deposited: 15 Dec 2021 03:07
Last Modified: 15 Dec 2021 03:37
Uncontrolled Keywords: Climate models; Damage potential; North Atlantic; Tropical cyclones
Fields of Research (2008): 04 Earth Sciences > 0401 Atmospheric Sciences > 040107 Meteorology
04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040604 Natural Hazards
Fields of Research (2020): 37 EARTH SCIENCES > 3701 Atmospheric sciences > 370101 Adverse weather events
37 EARTH SCIENCES > 3701 Atmospheric sciences > 370108 Meteorology
Socio-Economic Objectives (2008): D Environment > 96 Environment > 9610 Natural Hazards > 961002 Natural Hazards in Coastal and Estuarine Environments
Socio-Economic Objectives (2020): 19 ENVIRONMENTAL POLICY, CLIMATE CHANGE AND NATURAL HAZARDS > 1904 Natural hazards > 190405 Meteorological hazards (e.g. cyclones and storms)
Identification Number or DOI: https://doi.org/10.1007/s11069-021-04977-2
URI: http://eprints.usq.edu.au/id/eprint/44658

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