Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones

The climatology of tropical cyclones is an immediate research need, specifically to better understand their long-term patterns and elucidate their future in a changing climate. One important pattern that has recently been detected is the poleward shift of the lifetime maximum intensity (LMI) of trop...

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Main Authors: Sarah A. Tennille, Kelsey N. Ellis
Format: Article
Language:English
Published: MDPI AG 2017-10-01
Series:Atmosphere
Subjects:
Online Access:https://www.mdpi.com/2073-4433/8/10/198
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author Sarah A. Tennille
Kelsey N. Ellis
author_facet Sarah A. Tennille
Kelsey N. Ellis
author_sort Sarah A. Tennille
collection DOAJ
description The climatology of tropical cyclones is an immediate research need, specifically to better understand their long-term patterns and elucidate their future in a changing climate. One important pattern that has recently been detected is the poleward shift of the lifetime maximum intensity (LMI) of tropical cyclones. This study further assessed the recent (1977–2015) spatial changes in the LMI of tropical cyclones, specifically those of tropical storm strength or stronger in the North Atlantic and northern West Pacific basins. Analyses of moving decadal means suggested that LMI locations migrated south in the North Atlantic and north in the West Pacific. In addition to a linear trend, there is a cyclical migration of LMI that is especially apparent in the West Pacific. Relationships between LMI migration and intensity were explored, as well as LMI location relative to landfall. The southerly trend of LMI in the North Atlantic was most prevalent in the strongest storms, resulting in these storms reaching their LMI farther from land. The relationship between intensity and LMI migration in the West Pacific was not as clear, but the most intense storms have been reaching LMI closer to their eventual landfall location. This work adds to those emphasizing the importance of understanding the climatology of the most intense hurricanes and shows there are potential human impacts resulting from any migration of LMI.
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spelling doaj.art-d11c933b63a84e3486f77c51fc5be2ff2022-12-22T03:32:27ZengMDPI AGAtmosphere2073-44332017-10-0181019810.3390/atmos8100198atmos8100198Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical CyclonesSarah A. Tennille0Kelsey N. Ellis1Department of Geography, University of Tennessee, Knoxville, TN 37996, USADepartment of Geography, University of Tennessee, Knoxville, TN 37996, USAThe climatology of tropical cyclones is an immediate research need, specifically to better understand their long-term patterns and elucidate their future in a changing climate. One important pattern that has recently been detected is the poleward shift of the lifetime maximum intensity (LMI) of tropical cyclones. This study further assessed the recent (1977–2015) spatial changes in the LMI of tropical cyclones, specifically those of tropical storm strength or stronger in the North Atlantic and northern West Pacific basins. Analyses of moving decadal means suggested that LMI locations migrated south in the North Atlantic and north in the West Pacific. In addition to a linear trend, there is a cyclical migration of LMI that is especially apparent in the West Pacific. Relationships between LMI migration and intensity were explored, as well as LMI location relative to landfall. The southerly trend of LMI in the North Atlantic was most prevalent in the strongest storms, resulting in these storms reaching their LMI farther from land. The relationship between intensity and LMI migration in the West Pacific was not as clear, but the most intense storms have been reaching LMI closer to their eventual landfall location. This work adds to those emphasizing the importance of understanding the climatology of the most intense hurricanes and shows there are potential human impacts resulting from any migration of LMI.https://www.mdpi.com/2073-4433/8/10/198hurricanemaximum intensitywind speedclimate change
spellingShingle Sarah A. Tennille
Kelsey N. Ellis
Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones
Atmosphere
hurricane
maximum intensity
wind speed
climate change
title Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones
title_full Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones
title_fullStr Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones
title_full_unstemmed Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones
title_short Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones
title_sort spatial and temporal trends in the location of the lifetime maximum intensity of tropical cyclones
topic hurricane
maximum intensity
wind speed
climate change
url https://www.mdpi.com/2073-4433/8/10/198
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