Estimation of daily solar radiation from routinely observed meteorological data in Chongqing, China

Li, Mao-Fen; Liu, Hongbin; Guo, Ping; Wu, Wei

doi:10.1016/j.enconman.2010.05.021

Cited by 66 publications

(26 citation statements)

References 19 publications

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“…There are many studies to estimate solar radiation based on empirical relationships between the observed solar radiation and the meteorological elements. The empirical models are mainly based on temperature [8][9][10][11][12][13] cloudiness [14][15][16] and sunshine duration [5,[17][18][19][20][21][22][23] or combination of them [24]. The sunshine based methods are generally more accurate and therefore are commonly used for estimating solar radiation by many researchers [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

A new approach to estimate the spatial distribution of solar radiation using topographic factor and sunshine duration in South Korea

Park

Das

Park

2015

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

A new approach to estimate the spatial distribution of solar radiation using topographic factor and sunshine duration in South Korea

Park

Das

Park

2015

Energy Conversion and Management

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“…[21][22][23][24][25] The input data for such models include quantities such as the sunshine duration, the latitude and the longitude, the declination angle, the altitude, the cloudiness, the ambient temperature, the relative humidity, the atmospheric pressure, and precipitate water vapor. 2,19,20,[26][27][28][29]31,35,36 The models for the monthly average daily global horizontal solar radiation can be classified in the following categories, see Table I: 31 The models based on sunshine duration are the most widely studied and used in research studies. These models can be classified in four main groups: 19,20 • Linear models-based on a modified form of the Angstr€ om equation.…”

Section: Brief Review Of the Modelsmentioning

confidence: 99%

“…2,12,[15][16][17][18][19][20][26][27][28][29][30][31][32][33][34][35][36]57,58 These models are empirical, theoretical, or stochastic, leading to sophisticated models using neural networks and fuzzy logic algorithms. [21][22][23][24][25] The input data for such models include quantities such as the sunshine duration, the latitude and the longitude, the declination angle, the altitude, the cloudiness, the ambient temperature, the relative humidity, the atmospheric pressure, and precipitate water vapor.…”

Section: Brief Review Of the Modelsmentioning

confidence: 99%

Monthly average daily global and diffuse solar radiation based on sunshine duration and clearness index for Brasov, Romania

Cotfas

Kaplani³

et al. 2014

Journal of Renewable and Sustainable Energy

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The main objective of this study is to develop single location appropriate models for the estimation of the monthly average daily global and diffuse horizontal solar radiation for Brasov, Romania. The study focuses particularly on models based on the sunshine duration and clearness index. The data used for the calibration of the models were collected during a period of 4 yr, between November 2008 and October 2012, at the Transilvania University of Brasov. The testing and validation of the models was carried out using data from the online SoDa database for Brasov for the year 2005. Different statistical error tests were applied to evaluate the accuracy of the models. The predicted values are also compared with values from three other known models concerning the global and diffuse solar radiation. A new mixed model was developed for the estimation of monthly average daily global horizontal solar radiation. The data processing was performed by means of a realtime interface developed with LabVIEW graphical programming language. The parameters taken into account were the relative sunshine, the clearness index, the extraterrestrial radiation, the latitude and the longitude. The methodology is simple and effective and may be applied for any region. Its effectiveness was proven through comparison with global models. V C 2014 AIP Publishing LLC.

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“…On the contrary, more than 700 stations have records of air temperatures, offering an important alternative to deriving solar radiation due to the widely availability of temperature data. Some works validated the temperature-based models for this area [52][53][54], and a few revised models were developed [13,52]. However, these new versions were found to give similar performances with the original ones at many sites [13,52,55].…”

Section: Introductionmentioning

confidence: 99%

Assessing the transferability of support vector machine model for estimation of global solar radiation from air temperature

Chen

Xiao

et al. 2015

Energy Conversion and Management

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a b s t r a c tExploring novel methods for estimation of global solar radiation from air temperature has been being a focus in many studies. This paper evaluates the transferability of support vector machines (SVM) for estimation of solar radiation in subtropical zone in China. Results suggest that solar radiation at one site (estimation site) could be well estimated by SVM model developed at another site (source site). The accuracy of estimation is affected by the distance and temperature difference between two sites, and altitude of source site. Higher correlations between RMSE of SVM and distance, and temperature differences are observed in northeastern region, increasing the reliability and confidence of SVM model developed at nearby stations. While lower correlations between RMSE and distance, and temperature differences are observed in southwest plateau region. When the altitude of estimation site is lower than 1200 m, RMSE show logarithm relationship with altitude of source sites where the altitude are lower than that of estimation site. Otherwise, RMSE show linearly relationship with altitude of source sites where the altitude are higher than 200 m but lower than that of the estimation site. This result suggests that solar radiation could be also estimated using SVM model developed at the site with similar but lower altitude. Based on these results, a strategy that takes into account the climatic conditions, topography, distance, and altitude for selecting a suitable source site is presented. The findings can guide and ease the appropriate choice of source sites for estimation of solar radiation at estimation site.

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Estimation of daily solar radiation from routinely observed meteorological data in Chongqing, China

Cited by 66 publications

References 19 publications

A new approach to estimate the spatial distribution of solar radiation using topographic factor and sunshine duration in South Korea

A new approach to estimate the spatial distribution of solar radiation using topographic factor and sunshine duration in South Korea

Monthly average daily global and diffuse solar radiation based on sunshine duration and clearness index for Brasov, Romania

Assessing the transferability of support vector machine model for estimation of global solar radiation from air temperature

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