Global Solar Radiation Transfer and Its Loss in the Atmosphere
Based on the analysis of solar radiation and meteorological parameters measured at a subtropical forest in China during 2013–2016, a new empirical model of global solar irradiance has been developed. It can calculate global solar irradiance at the ground and at the top of the atmosphere (TOA); both...
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MDPI AG
2021-03-01
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Online Access: | https://www.mdpi.com/2076-3417/11/6/2651 |
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author | Jianhui Bai Xuemei Zong |
author_facet | Jianhui Bai Xuemei Zong |
author_sort | Jianhui Bai |
collection | DOAJ |
description | Based on the analysis of solar radiation and meteorological parameters measured at a subtropical forest in China during 2013–2016, a new empirical model of global solar irradiance has been developed. It can calculate global solar irradiance at the ground and at the top of the atmosphere (TOA); both are in agreement with the observations. This model is used to calculate the extinction of global solar irradiance in the atmosphere and the contributions from absorbing and scattering substances. The loss of global solar irradiance is dominated by absorbing and absorbing substances. The results show clear seasonal and interannual variations during the observation period. Sensitivity analysis indicates that global solar irradiance is more sensitive to changes in scattering, quantified by the S/G factor (S and G are diffuse and global solar radiation, respectively), than to changes in absorption. The relationships between the extinction factor (AF) of G and S/G and between the AF and the aerosol optical depth (AOD) are determined and used to estimate S/G and the AOD from the measured AF. This empirical model is applied to calculate the albedos at the TOA and the ground. This empirical model is useful to study global solar radiation and the energy–atmosphere interactions. |
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id | doaj.art-d8238c6f090b41caaa6bd5ff4f3ae1dc |
institution | Directory Open Access Journal |
issn | 2076-3417 |
language | English |
last_indexed | 2024-03-10T13:12:02Z |
publishDate | 2021-03-01 |
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spelling | doaj.art-d8238c6f090b41caaa6bd5ff4f3ae1dc2023-11-21T10:44:18ZengMDPI AGApplied Sciences2076-34172021-03-01116265110.3390/app11062651Global Solar Radiation Transfer and Its Loss in the AtmosphereJianhui Bai0Xuemei Zong1LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaLAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaBased on the analysis of solar radiation and meteorological parameters measured at a subtropical forest in China during 2013–2016, a new empirical model of global solar irradiance has been developed. It can calculate global solar irradiance at the ground and at the top of the atmosphere (TOA); both are in agreement with the observations. This model is used to calculate the extinction of global solar irradiance in the atmosphere and the contributions from absorbing and scattering substances. The loss of global solar irradiance is dominated by absorbing and absorbing substances. The results show clear seasonal and interannual variations during the observation period. Sensitivity analysis indicates that global solar irradiance is more sensitive to changes in scattering, quantified by the S/G factor (S and G are diffuse and global solar radiation, respectively), than to changes in absorption. The relationships between the extinction factor (AF) of G and S/G and between the AF and the aerosol optical depth (AOD) are determined and used to estimate S/G and the AOD from the measured AF. This empirical model is applied to calculate the albedos at the TOA and the ground. This empirical model is useful to study global solar radiation and the energy–atmosphere interactions.https://www.mdpi.com/2076-3417/11/6/2651global solar radiationabsorbing and scattering factorsOH radicalsaerosol optical depthclimate |
spellingShingle | Jianhui Bai Xuemei Zong Global Solar Radiation Transfer and Its Loss in the Atmosphere Applied Sciences global solar radiation absorbing and scattering factors OH radicals aerosol optical depth climate |
title | Global Solar Radiation Transfer and Its Loss in the Atmosphere |
title_full | Global Solar Radiation Transfer and Its Loss in the Atmosphere |
title_fullStr | Global Solar Radiation Transfer and Its Loss in the Atmosphere |
title_full_unstemmed | Global Solar Radiation Transfer and Its Loss in the Atmosphere |
title_short | Global Solar Radiation Transfer and Its Loss in the Atmosphere |
title_sort | global solar radiation transfer and its loss in the atmosphere |
topic | global solar radiation absorbing and scattering factors OH radicals aerosol optical depth climate |
url | https://www.mdpi.com/2076-3417/11/6/2651 |
work_keys_str_mv | AT jianhuibai globalsolarradiationtransferanditslossintheatmosphere AT xuemeizong globalsolarradiationtransferanditslossintheatmosphere |