Estimation of atmospheric turbidity coefficient [formula omitted] over Zhengzhou, China during 1961–2013 using an improved hybrid model.
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| Title: | Estimation of atmospheric turbidity coefficient [formula omitted] over Zhengzhou, China during 1961–2013 using an improved hybrid model. |
|---|---|
| Authors: | Lin, Aiwen1, Zou, Ling1, Wang, Lunche2,3 lunchewang@whu.edu.cn, Gong, Wei4, Zhu, Hongji1, Salazar, Germán Ariel5 |
| Source: | Renewable Energy: An International Journal. Feb2016, Vol. 86, p1134-1144. 11p. |
| Subject Terms: | *Atmospheric turbidity, *Solar radiation, *Humidity, Hybrid systems |
| Geographic Terms: | Zhengzhou Shi (China) |
| Abstract: | Accurate measurement and determination of the atmospheric turbidity is of great importance for solar radiation modeling and climate change studies. Daily values of global, direct and diffuse solar irradiation and meteorological variables (air temperature, relative humidity, sunshine duration and wind speed) during 1960–2013 are used to investigate the monthly variations of Ångström turbidity coefficient ( β ) at Zhengzhou, China. An improved method (IYHM-ZZ) is proposed by combining the format of the Yang hybrid model (YHM) with corrected spectral terms. The β value is obtained by adjusting the estimated direct radiation until it matches the measured values. Statistical indicators (RMSE, MBE and t -test) are used to evaluate the performance of YHM and IYHM-ZZ models, and the IYHM-ZZ model produces more accurate estimates than the YHM model. The results indicate that the β values are generally higher in winter and spring, lower in summer and autumn. An increasing trend of β is observed during 1960–2010 at Zhengzhou, and the annual mean β are 0.07, 0.09, 0.11, 0.12, 0.12 and 0.13 for 1960s, 1970s, 1980s, 1990s, 2000s and 2010-, respectively. [ABSTRACT FROM AUTHOR] |
| Copyright of Renewable Energy: An International Journal is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 110475043 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Estimation of atmospheric turbidity coefficient [formula omitted] over Zhengzhou, China during 1961–2013 using an improved hybrid model. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lin%2C+Aiwen%22">Lin, Aiwen</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zou%2C+Ling%22">Zou, Ling</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Lunche%22">Wang, Lunche</searchLink><relatesTo>2,3</relatesTo><i> lunchewang@whu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Gong%2C+Wei%22">Gong, Wei</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Hongji%22">Zhu, Hongji</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Salazar%2C+Germán+Ariel%22">Salazar, Germán Ariel</searchLink><relatesTo>5</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Renewable+Energy%3A+An+International+Journal%22">Renewable Energy: An International Journal</searchLink>. Feb2016, Vol. 86, p1134-1144. 11p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Atmospheric+turbidity%22">Atmospheric turbidity</searchLink><br />*<searchLink fieldCode="DE" term="%22Solar+radiation%22">Solar radiation</searchLink><br />*<searchLink fieldCode="DE" term="%22Humidity%22">Humidity</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+systems%22">Hybrid systems</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Zhengzhou+Shi+%28China%29%22">Zhengzhou Shi (China)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Accurate measurement and determination of the atmospheric turbidity is of great importance for solar radiation modeling and climate change studies. Daily values of global, direct and diffuse solar irradiation and meteorological variables (air temperature, relative humidity, sunshine duration and wind speed) during 1960–2013 are used to investigate the monthly variations of Ångström turbidity coefficient ( β ) at Zhengzhou, China. An improved method (IYHM-ZZ) is proposed by combining the format of the Yang hybrid model (YHM) with corrected spectral terms. The β value is obtained by adjusting the estimated direct radiation until it matches the measured values. Statistical indicators (RMSE, MBE and t -test) are used to evaluate the performance of YHM and IYHM-ZZ models, and the IYHM-ZZ model produces more accurate estimates than the YHM model. The results indicate that the β values are generally higher in winter and spring, lower in summer and autumn. An increasing trend of β is observed during 1960–2010 at Zhengzhou, and the annual mean β are 0.07, 0.09, 0.11, 0.12, 0.12 and 0.13 for 1960s, 1970s, 1980s, 1990s, 2000s and 2010-, respectively. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Renewable Energy: An International Journal is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.renene.2015.09.043 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 1134 Subjects: – SubjectFull: Atmospheric turbidity Type: general – SubjectFull: Solar radiation Type: general – SubjectFull: Humidity Type: general – SubjectFull: Hybrid systems Type: general – SubjectFull: Zhengzhou Shi (China) Type: general Titles: – TitleFull: Estimation of atmospheric turbidity coefficient [formula omitted] over Zhengzhou, China during 1961–2013 using an improved hybrid model. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lin, Aiwen – PersonEntity: Name: NameFull: Zou, Ling – PersonEntity: Name: NameFull: Wang, Lunche – PersonEntity: Name: NameFull: Gong, Wei – PersonEntity: Name: NameFull: Zhu, Hongji – PersonEntity: Name: NameFull: Salazar, Germán Ariel IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 09601481 Numbering: – Type: volume Value: 86 Titles: – TitleFull: Renewable Energy: An International Journal Type: main |
| ResultId | 1 |
