Anna Carolina Bazzanela, Wanderson Luiz-Silva, Juan Neres, José Ricardo França, Lucas Menezes, Fabricio Polifke
{"title":"评估南美洲上空大气柱的温度和水蒸气:利用ERA5再分析确定趋势的概要","authors":"Anna Carolina Bazzanela, Wanderson Luiz-Silva, Juan Neres, José Ricardo França, Lucas Menezes, Fabricio Polifke","doi":"10.1016/j.jastp.2025.106514","DOIUrl":null,"url":null,"abstract":"<div><div>Climate change is already a reality globally. Several studies have quantified how these alterations affect specific energy budget components, such as radiative fluxes, heat storage, and energy transfer processes, correlating with verified modifications in several climate variables. Given the crucial role of thermodynamic processes in the hydrological cycle, this paper aims to provide a comprehensive overview of the climatology of air temperature and water vapor throughout the atmospheric column across South America. Moreover, detected trends in these variables are analyzed in the present climate using reanalysis data, focusing on the regions defined by the IPCC's Sixth Assessment Report (AR6). The results reveal an increasing air temperature trend at all levels of the atmosphere over the continent. The highest rates of air temperature rise are in the central portion of South America, while at high levels, the rate of warming is more significant in the northern part of the continent. There is an increasing trend in water vapor throughout the atmospheric column, particularly in the northern sector of South America. The identified decreasing trends of water vapor or specific humidity in the southeastern region do not exhibit a statistically significant signal. Such observed changes cause alterations in global and regional circulation patterns, mainly associated with extreme events.</div></div>","PeriodicalId":15096,"journal":{"name":"Journal of Atmospheric and Solar-Terrestrial Physics","volume":"271 ","pages":"Article 106514"},"PeriodicalIF":1.8000,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Assessing temperature and water vapor in the atmospheric column over South America: a synopsis of identified trends using ERA5 reanalysis\",\"authors\":\"Anna Carolina Bazzanela, Wanderson Luiz-Silva, Juan Neres, José Ricardo França, Lucas Menezes, Fabricio Polifke\",\"doi\":\"10.1016/j.jastp.2025.106514\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Climate change is already a reality globally. Several studies have quantified how these alterations affect specific energy budget components, such as radiative fluxes, heat storage, and energy transfer processes, correlating with verified modifications in several climate variables. Given the crucial role of thermodynamic processes in the hydrological cycle, this paper aims to provide a comprehensive overview of the climatology of air temperature and water vapor throughout the atmospheric column across South America. Moreover, detected trends in these variables are analyzed in the present climate using reanalysis data, focusing on the regions defined by the IPCC's Sixth Assessment Report (AR6). The results reveal an increasing air temperature trend at all levels of the atmosphere over the continent. The highest rates of air temperature rise are in the central portion of South America, while at high levels, the rate of warming is more significant in the northern part of the continent. There is an increasing trend in water vapor throughout the atmospheric column, particularly in the northern sector of South America. The identified decreasing trends of water vapor or specific humidity in the southeastern region do not exhibit a statistically significant signal. Such observed changes cause alterations in global and regional circulation patterns, mainly associated with extreme events.</div></div>\",\"PeriodicalId\":15096,\"journal\":{\"name\":\"Journal of Atmospheric and Solar-Terrestrial Physics\",\"volume\":\"271 \",\"pages\":\"Article 106514\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-04-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Atmospheric and Solar-Terrestrial Physics\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1364682625000987\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Atmospheric and Solar-Terrestrial Physics","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1364682625000987","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
Assessing temperature and water vapor in the atmospheric column over South America: a synopsis of identified trends using ERA5 reanalysis
Climate change is already a reality globally. Several studies have quantified how these alterations affect specific energy budget components, such as radiative fluxes, heat storage, and energy transfer processes, correlating with verified modifications in several climate variables. Given the crucial role of thermodynamic processes in the hydrological cycle, this paper aims to provide a comprehensive overview of the climatology of air temperature and water vapor throughout the atmospheric column across South America. Moreover, detected trends in these variables are analyzed in the present climate using reanalysis data, focusing on the regions defined by the IPCC's Sixth Assessment Report (AR6). The results reveal an increasing air temperature trend at all levels of the atmosphere over the continent. The highest rates of air temperature rise are in the central portion of South America, while at high levels, the rate of warming is more significant in the northern part of the continent. There is an increasing trend in water vapor throughout the atmospheric column, particularly in the northern sector of South America. The identified decreasing trends of water vapor or specific humidity in the southeastern region do not exhibit a statistically significant signal. Such observed changes cause alterations in global and regional circulation patterns, mainly associated with extreme events.
期刊介绍:
The Journal of Atmospheric and Solar-Terrestrial Physics (JASTP) is an international journal concerned with the inter-disciplinary science of the Earth''s atmospheric and space environment, especially the highly varied and highly variable physical phenomena that occur in this natural laboratory and the processes that couple them.
The journal covers the physical processes operating in the troposphere, stratosphere, mesosphere, thermosphere, ionosphere, magnetosphere, the Sun, interplanetary medium, and heliosphere. Phenomena occurring in other "spheres", solar influences on climate, and supporting laboratory measurements are also considered. The journal deals especially with the coupling between the different regions.
Solar flares, coronal mass ejections, and other energetic events on the Sun create interesting and important perturbations in the near-Earth space environment. The physics of such "space weather" is central to the Journal of Atmospheric and Solar-Terrestrial Physics and the journal welcomes papers that lead in the direction of a predictive understanding of the coupled system. Regarding the upper atmosphere, the subjects of aeronomy, geomagnetism and geoelectricity, auroral phenomena, radio wave propagation, and plasma instabilities, are examples within the broad field of solar-terrestrial physics which emphasise the energy exchange between the solar wind, the magnetospheric and ionospheric plasmas, and the neutral gas. In the lower atmosphere, topics covered range from mesoscale to global scale dynamics, to atmospheric electricity, lightning and its effects, and to anthropogenic changes.