{"title":"The Atmospheric Water Vapor Content Effect on Carbon Dioxide and Methane Radiative Forcing in the Troposphere and Stratosphere","authors":"K. M. Firsov, T. Yu. Chesnokova, A. A. Razmolov","doi":"10.1134/S1024856024700921","DOIUrl":null,"url":null,"abstract":"<p>According to the IPCC-2021 Report on Climate Change, the atmospheric CO<sub>2</sub> and CH<sub>4</sub> concentrations have increased by around a quarter for the past 50 years. The CO<sub>2</sub> and CH<sub>4</sub> radiative forcing due to their concentration growth was calculated for mid-latitudes. The vertical profiles of temperature and humidity were taken from the ECMWF ERA-5 European reanalysis data. An effect of overlapping of H<sub>2</sub>O absorption bands with CO<sub>2</sub> and CH<sub>4</sub> bands on the radiative forcing calculation results in the troposphere and stratosphere of midlatitudes with different water vapor content was studied by statistical methods. It was shown that absolute value of the CO<sub>2</sub> radiative forcing in the troposphere increases with the atmospheric water vapor content, whereas the CH<sub>4</sub> radiative forcing does not depend on the atmospheric total column water vapor.</p>","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"37 5","pages":"689 - 697"},"PeriodicalIF":0.9000,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmospheric and Oceanic Optics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1024856024700921","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
According to the IPCC-2021 Report on Climate Change, the atmospheric CO2 and CH4 concentrations have increased by around a quarter for the past 50 years. The CO2 and CH4 radiative forcing due to their concentration growth was calculated for mid-latitudes. The vertical profiles of temperature and humidity were taken from the ECMWF ERA-5 European reanalysis data. An effect of overlapping of H2O absorption bands with CO2 and CH4 bands on the radiative forcing calculation results in the troposphere and stratosphere of midlatitudes with different water vapor content was studied by statistical methods. It was shown that absolute value of the CO2 radiative forcing in the troposphere increases with the atmospheric water vapor content, whereas the CH4 radiative forcing does not depend on the atmospheric total column water vapor.
期刊介绍：
Atmospheric and Oceanic Optics is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.
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