{"title":"Modulation of High-Latitude Tropical Cyclone Recurvature by Solar Radiation","authors":"","doi":"10.1007/s13351-023-3046-1","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>In this study, idealized simulations are conducted to investigate potential influences of solar radiation on the tropical cyclone (TC) recurvature at higher latitudes. Results indicate that TC track is sensitive to the seasonal variation of radiative forcing at higher latitudes. In the absence of a background flow, TCs at higher latitudes tend to recurve (remain northwestward) in the cold (warm) season. This feature is an additional aspect of the so-called intrinsic recurvature property of TC movement at high latitude. Physically, the greater meridional gradient of temperature in the cold season due to solar radiative forcing would induce a larger thermal wind, which affects the upper-level anticyclonic circulation and associated outflow. The structure changes of TC, mainly at upper-levels, modulate the steering flow for TC, leading to a higher probability of TCs at higher latitudes to recurve in the cold season than in the warm season.</p>","PeriodicalId":48796,"journal":{"name":"Journal of Meteorological Research","volume":"39 1","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Meteorological Research","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1007/s13351-023-3046-1","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METEOROLOGY & ATMOSPHERIC SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, idealized simulations are conducted to investigate potential influences of solar radiation on the tropical cyclone (TC) recurvature at higher latitudes. Results indicate that TC track is sensitive to the seasonal variation of radiative forcing at higher latitudes. In the absence of a background flow, TCs at higher latitudes tend to recurve (remain northwestward) in the cold (warm) season. This feature is an additional aspect of the so-called intrinsic recurvature property of TC movement at high latitude. Physically, the greater meridional gradient of temperature in the cold season due to solar radiative forcing would induce a larger thermal wind, which affects the upper-level anticyclonic circulation and associated outflow. The structure changes of TC, mainly at upper-levels, modulate the steering flow for TC, leading to a higher probability of TCs at higher latitudes to recurve in the cold season than in the warm season.
期刊介绍：
Journal of Meteorological Research (previously known as Acta Meteorologica Sinica) publishes the latest achievements and developments in the field of atmospheric sciences. Coverage is broad, including topics such as pure and applied meteorology; climatology and climate change; marine meteorology; atmospheric physics and chemistry; cloud physics and weather modification; numerical weather prediction; data assimilation; atmospheric sounding and remote sensing; atmospheric environment and air pollution; radar and satellite meteorology; agricultural and forest meteorology and more.
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