Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment

Recent dramatic increases in damages caused by tropical cyclones (TCs) and improved understanding of TC physics have led DHS to fund research on intentional hurricane modification. We present a decision analytic assessment of whether it is potentially cost-effective to attempt to lower the wind spee...

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Main Authors: Klima, Kelly, Morgan, M. Granger, Grossmann, Iris, Emanuel, Kerry Andrew
Other Authors: Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Format: Article
Language:en_US
Published: American Chemical Society 2012
Online Access:http://hdl.handle.net/1721.1/75729
https://orcid.org/0000-0002-2066-2082
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author Klima, Kelly
Morgan, M. Granger
Grossmann, Iris
Emanuel, Kerry Andrew
author2 Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
author_facet Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Klima, Kelly
Morgan, M. Granger
Grossmann, Iris
Emanuel, Kerry Andrew
author_sort Klima, Kelly
collection MIT
description Recent dramatic increases in damages caused by tropical cyclones (TCs) and improved understanding of TC physics have led DHS to fund research on intentional hurricane modification. We present a decision analytic assessment of whether it is potentially cost-effective to attempt to lower the wind speed of TCs approaching South Florida by reducing sea surface temperatures with wind-wave pumps. Using historical data on hurricanes approaching South Florida, we develop prior probabilities of how storms might evolve. The effects of modification are estimated using a modern TC model. The FEMA HAZUS-MH MR3 damage model and census data on the value of property at risk are used to estimate expected economic losses. We compare wind damages after storm modification with damages after implementing hardening strategies protecting buildings. We find that if it were feasible and properly implemented, modification could reduce net losses from an intense storm more than hardening structures. However, hardening provides “fail safe” protection for average storms that might not be achieved if the only option were modification. The effect of natural variability is larger than that of either strategy. Damage from storm surge is modest in the scenario studied but might be abated by modification.
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spelling mit-1721.1/757292022-09-29T12:53:22Z Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment Klima, Kelly Morgan, M. Granger Grossmann, Iris Emanuel, Kerry Andrew Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Emanuel, Kerry Emanuel, Kerry Andrew Recent dramatic increases in damages caused by tropical cyclones (TCs) and improved understanding of TC physics have led DHS to fund research on intentional hurricane modification. We present a decision analytic assessment of whether it is potentially cost-effective to attempt to lower the wind speed of TCs approaching South Florida by reducing sea surface temperatures with wind-wave pumps. Using historical data on hurricanes approaching South Florida, we develop prior probabilities of how storms might evolve. The effects of modification are estimated using a modern TC model. The FEMA HAZUS-MH MR3 damage model and census data on the value of property at risk are used to estimate expected economic losses. We compare wind damages after storm modification with damages after implementing hardening strategies protecting buildings. We find that if it were feasible and properly implemented, modification could reduce net losses from an intense storm more than hardening structures. However, hardening provides “fail safe” protection for average storms that might not be achieved if the only option were modification. The effect of natural variability is larger than that of either strategy. Damage from storm surge is modest in the scenario studied but might be abated by modification. Center for Climate and Energy Decision Making (SES-0345798) Center for Climate and Energy Decision Making (SES-0949710) Carnegie Mellon University National Science Foundation (U.S.) 2012-12-13T21:44:07Z 2012-12-13T21:44:07Z 2011-04 Article http://purl.org/eprint/type/JournalArticle 0013-936X 1520-5851 http://hdl.handle.net/1721.1/75729 Klima, Kelly et al. “Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment.” Environmental Science & Technology 45.10 (2011): 4242–4248. Web. https://orcid.org/0000-0002-2066-2082 en_US http://dx.doi.org/10.1021/es104336u Environmental Science and Technology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society Prof. Emanuel via Chris Sherratt
spellingShingle Klima, Kelly
Morgan, M. Granger
Grossmann, Iris
Emanuel, Kerry Andrew
Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment
title Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment
title_full Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment
title_fullStr Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment
title_full_unstemmed Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment
title_short Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment
title_sort does it make sense to modify tropical cyclones a decision analytic assessment
url http://hdl.handle.net/1721.1/75729
https://orcid.org/0000-0002-2066-2082
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