Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP Ocean

Abstract Precipitable water vapor (PWV) is one of the crucial driving forces for tropical cyclone (TC) genesis. Under the impact of global warming, TCs have changed their way to concentrate PWV from the ambient atmosphere. This study starts with the asymmetric characteristics of PWV in the TC's...

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Main Authors: Shiwei Yu, Zhizhao Liu, Yuanjian Yang
Format: Article
Language:English
Published: Wiley 2023-09-01
Series:Geophysical Research Letters
Online Access:https://doi.org/10.1029/2023GL103841
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author Shiwei Yu
Zhizhao Liu
Yuanjian Yang
author_facet Shiwei Yu
Zhizhao Liu
Yuanjian Yang
author_sort Shiwei Yu
collection DOAJ
description Abstract Precipitable water vapor (PWV) is one of the crucial driving forces for tropical cyclone (TC) genesis. Under the impact of global warming, TCs have changed their way to concentrate PWV from the ambient atmosphere. This study starts with the asymmetric characteristics of PWV in the TC's north and south sides using altimetry‐satellite‐based PWV profiles paired with 367 TCs over the western Pacific Ocean between 2008 and 2020. The results suggest that the TC‐concentrated PWV has a north‐leaning and south‐leaning property over the western North Pacific (WNP) and western South Pacific (WSP), respectively. Moreover, it is observed that the radius of TC‐concentrated PWV has broadened by 5.44% (5.83%) over the WNP (WSP) from 2008 to 2020. In contrast, the PWV gradient has decreased by 23.5% (17.5%) over the WNP (WSP). Our findings highlight that the TC‐concentrated PWV can be used as an important indicator of TC responses to global warming.
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spelling doaj-art-e1aa09c21e7144b4b76e1107a91541de2025-08-20T03:06:04ZengWileyGeophysical Research Letters0094-82761944-80072023-09-015017n/an/a10.1029/2023GL103841Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP OceanShiwei Yu0Zhizhao Liu1Yuanjian Yang2Department of Land Surveying and Geo‐Informatics The Hong Kong Polytechnic University Hong Kong ChinaDepartment of Land Surveying and Geo‐Informatics The Hong Kong Polytechnic University Hong Kong ChinaSchool of Atmospheric Physics Nanjing University of Information Science & Technology Nanjing ChinaAbstract Precipitable water vapor (PWV) is one of the crucial driving forces for tropical cyclone (TC) genesis. Under the impact of global warming, TCs have changed their way to concentrate PWV from the ambient atmosphere. This study starts with the asymmetric characteristics of PWV in the TC's north and south sides using altimetry‐satellite‐based PWV profiles paired with 367 TCs over the western Pacific Ocean between 2008 and 2020. The results suggest that the TC‐concentrated PWV has a north‐leaning and south‐leaning property over the western North Pacific (WNP) and western South Pacific (WSP), respectively. Moreover, it is observed that the radius of TC‐concentrated PWV has broadened by 5.44% (5.83%) over the WNP (WSP) from 2008 to 2020. In contrast, the PWV gradient has decreased by 23.5% (17.5%) over the WNP (WSP). Our findings highlight that the TC‐concentrated PWV can be used as an important indicator of TC responses to global warming.https://doi.org/10.1029/2023GL103841
spellingShingle Shiwei Yu
Zhizhao Liu
Yuanjian Yang
Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP Ocean
Geophysical Research Letters
title Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP Ocean
title_full Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP Ocean
title_fullStr Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP Ocean
title_full_unstemmed Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP Ocean
title_short Variation Trends of Asymmetrical Precipitable Water Vapor Outside the Tropical Cyclone Center Over the WNP and WSP Ocean
title_sort variation trends of asymmetrical precipitable water vapor outside the tropical cyclone center over the wnp and wsp ocean
url https://doi.org/10.1029/2023GL103841
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