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Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert

The characteristics of solar radiation and the influence of sand and dust on solar radiation in the northern margin of Taklimakan Desert were analyzed using radiation observation data from 2018. The results showed that the annual total radiation, direct radiation, and scattered radiation at Xiaotang...

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Autores principales: Jin, Lili, Zhou, Sasa, He, Qing, Abbas, Alim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8592049/
https://www.ncbi.nlm.nih.gov/pubmed/34824909
http://dx.doi.org/10.7717/peerj.12373
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author Jin, Lili
Zhou, Sasa
He, Qing
Abbas, Alim
author_facet Jin, Lili
Zhou, Sasa
He, Qing
Abbas, Alim
author_sort Jin, Lili
collection PubMed
description The characteristics of solar radiation and the influence of sand and dust on solar radiation in the northern margin of Taklimakan Desert were analyzed using radiation observation data from 2018. The results showed that the annual total radiation, direct radiation, and scattered radiation at Xiaotang were 5,781.8, 2,337.9, and 3,323.8 MJ m(−2), respectively. The maximum monthly total radiation, direct radiation, and scattered radiation were observed in July (679.8 MJ m(−2)), August (317.3 MJ m(−2)), and May (455.7 MJ m(−2)), respectively. The aerosol optical depth corresponded well with the scattered radiation, and the maximum value was in May. Further analysis showed a significant correlation between the total radiation and solar height angle under different weather conditions. Under the same solar height angle, total radiation was higher during clear days but lower on sandstorm days. Calculation of atmospheric transmittance showed that the average atmospheric transmittance on a clear day was 0.67; on sand-and-dust days, it was 0.46. When the atmospheric transmittance was 0.5, the increase in scattering radiation by aerosol in the air began to decrease. Probability analysis of radiation indicated the following probabilities of total radiation <500 W m(−2) occurring on clear, floating-dust, blowing-sand, and sandstorm days: 67.1%, 76.3%, 76.1%, and 91.8%, respectively. Dust had the greatest influence on direct radiation; the probabilities of direct radiation <200 W m(−2)occurring on clear, floating-dust, blowing-sand, and sandstorm days were 44.5%, 93.5%, 91.3%, and 100%, respectively, whereas those of scattered radiation <600 W m(−2)were 100%, 99.1%, 98.1%, and 100%, respectively. Therefore, the presence of dust in the air will reduce scattered radiation.
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spelling pubmed-85920492021-11-24 Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert Jin, Lili Zhou, Sasa He, Qing Abbas, Alim PeerJ Environmental Impacts The characteristics of solar radiation and the influence of sand and dust on solar radiation in the northern margin of Taklimakan Desert were analyzed using radiation observation data from 2018. The results showed that the annual total radiation, direct radiation, and scattered radiation at Xiaotang were 5,781.8, 2,337.9, and 3,323.8 MJ m(−2), respectively. The maximum monthly total radiation, direct radiation, and scattered radiation were observed in July (679.8 MJ m(−2)), August (317.3 MJ m(−2)), and May (455.7 MJ m(−2)), respectively. The aerosol optical depth corresponded well with the scattered radiation, and the maximum value was in May. Further analysis showed a significant correlation between the total radiation and solar height angle under different weather conditions. Under the same solar height angle, total radiation was higher during clear days but lower on sandstorm days. Calculation of atmospheric transmittance showed that the average atmospheric transmittance on a clear day was 0.67; on sand-and-dust days, it was 0.46. When the atmospheric transmittance was 0.5, the increase in scattering radiation by aerosol in the air began to decrease. Probability analysis of radiation indicated the following probabilities of total radiation <500 W m(−2) occurring on clear, floating-dust, blowing-sand, and sandstorm days: 67.1%, 76.3%, 76.1%, and 91.8%, respectively. Dust had the greatest influence on direct radiation; the probabilities of direct radiation <200 W m(−2)occurring on clear, floating-dust, blowing-sand, and sandstorm days were 44.5%, 93.5%, 91.3%, and 100%, respectively, whereas those of scattered radiation <600 W m(−2)were 100%, 99.1%, 98.1%, and 100%, respectively. Therefore, the presence of dust in the air will reduce scattered radiation. PeerJ Inc. 2021-11-12 /pmc/articles/PMC8592049/ /pubmed/34824909 http://dx.doi.org/10.7717/peerj.12373 Text en ©2021 Jin et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Environmental Impacts
Jin, Lili
Zhou, Sasa
He, Qing
Abbas, Alim
Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert
title Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert
title_full Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert
title_fullStr Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert
title_full_unstemmed Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert
title_short Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert
title_sort characteristics of solar radiation at xiaotang, in the northern marginal zone of the taklimakan desert
topic Environmental Impacts
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8592049/
https://www.ncbi.nlm.nih.gov/pubmed/34824909
http://dx.doi.org/10.7717/peerj.12373
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