Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/hess-2017-167
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
27 Jun 2017
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Hydrology and Earth System Sciences (HESS).
Defining and Analyzing the Frequency and Severity of Flood Events to Improve Risk Management from a Reinsurance Standpoint
Elliott P. Morrill1,2 and Joseph F. Becker2 1Rosensteil School of Marine and Atmospheric Science at the University of Miami
2Guy Carpenter and Co. LLC
Abstract. The National Flood Insurance Program debt has accelerated research into private flood insurance options. Offering this coverage begins with the ability to transfer the risk to the reinsurance market. Within the industry perils such as hurricanes and earthquakes have standard definitions but no such definition exists for flood. An event definition must examine the spatial and temporal aspects of the flood as well as the complexities of individual events. In this paper we were able to apply a data driven methodology to capture and aggregate flood peaks into independent events. Analyzing both the HUC8 and HUC6 a total of 8,021 HUC8 events and 8,478 HUC6 events were recorded during the 15 water years used in our study. Each event was characterized by duration, magnitude and severity. Focusing on the HUC8, events were unevenly distributed nationally while severity was relatively evenly distributed. The goal for our study was to take a method and be able to apply it to basins of varying characteristics. This framework relied on the ability to analyze the individual processes related to each individual basin.

Citation: Morrill, E. P. and Becker, J. F.: Defining and Analyzing the Frequency and Severity of Flood Events to Improve Risk Management from a Reinsurance Standpoint, Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2017-167, in review, 2017.
Elliott P. Morrill and Joseph F. Becker
Elliott P. Morrill and Joseph F. Becker
Elliott P. Morrill and Joseph F. Becker

Viewed

Total article views: 407 (including HTML, PDF, and XML)

HTML PDF XML Total Supplement BibTeX EndNote
346 56 5 407 10 6 7

Views and downloads (calculated since 27 Jun 2017)

Cumulative views and downloads (calculated since 27 Jun 2017)

Viewed (geographical distribution)

Total article views: 407 (including HTML, PDF, and XML)

Thereof 402 with geography defined and 5 with unknown origin.

Country # Views %
  • 1

Saved

Discussed

Latest update: 19 Aug 2017
Publications Copernicus
Download
Short summary
The goal of the paper was to develop a method to identify the length and severity of flood events for a (re)insurance and risk management usage. We took publically available discharge data from the USGS nationwide to apply our method to. We were able to define a peak and a threshold for each individual site which served as the basis of our method. The hope was that the method would help replace current standard hours clause and hopefully improve how flood insurance is covered internationally.
The goal of the paper was to develop a method to identify the length and severity of flood...
Share