Global Organization
The annual mean global solar radiation in China from 1961 to 2016 was estimated at 174.36 W·m −2, with a decreasing trend of −0.83 W·m −2 ·decade −1.
Long-term solar radiation datasets were reconstructed across China. Global solar radiation in summer decreased by up to 1.83 W·m −2 ·decade −1. China’s PV power potential decreased by 1.69 kWh·m−2 ·decade −1 from 1961 to 2016. 30 provinces saw a 0.25–10.27% reduction in PV potential in the 2010s versus the 1960s.
Therefore, solar radiation is a topic that has attracted broad and increasing attention in China (Che et al., 2005; Sun et al., 2016; Li et al., 2017; Wang et al., 2016; Song et al., 2019; Tang et al., 2016, 2018; Liu et al., 2019; He & Wang et al., 2020).
The average yearly potential for solar power generation in China from 1961 to 2016, assessed with global horizontal radiation data from the PSO-XGBoost model, reached 285.00 kWh·m−2.
Thus, understanding the long-term variations of solar radiation is important for planning the utilizations of solar energy resources over mainland China in the future. Measurement by pyranometer with accurately calibrated are the best way to obtain the long-term SSR data (Wang et al., 2012).
The present study introduces the RF model, a popular and highly flexible machine learning algorithm, to estimate solar radiation across China at the national scale. The estimated DGSR is in good agreement with site observations across China, with mean R, RMSE, and MB values of 0.95, 2.34, and −0.04 MJ/m 2, respectively.
The present study introduces the RF model, a popular and highly flexible machine learning algorithm, to estimate solar radiation across China at the national scale. The estimated DGSR is in good agreement with …
The results show that the annual global solar radiation in China is in the range of 3097–7311 MJm− 2, and the annual diffuse solar radiation value ranges from 495 to 3036 …
China is one of the largest worldwide country in the utilization of solar energy resources. China''s photovoltaic power generation reached 224.3 billion (kW/h) in 2019 …
The results show that the annual global solar radiation in China is in the range of 3097–7311 MJm −2, and the annual diffuse solar radiation value ranges from 495 to 3036 …
Clear-sky trends suggest an impact of volcanic eruption on the dramatic changes in solar radiation over China during the early 1990s; Governmental control on pollutant emissions may have contributed to the …
The present study introduces the RF model, a popular and highly flexible machine learning algorithm, to estimate solar radiation across China at the national scale. The …
The results showed that the annual solar radiation varied between years, and that there was a linear decreasing trend over the last 48 years: solar radiation was relatively …
The annual mean global solar radiation in China from 1961 to 2016 was estimated at 174.36 W·m −2, with a decreasing trend of −0.83 W·m −2 ·decade −1.
Clear-sky trends suggest an impact of volcanic eruption on the dramatic changes in solar radiation over China during the early 1990s; Governmental control on …
The annual global solar radiation in eastern China is weaker than that in western China as a whole. Figure 1 shows the distribution of annual global solar radiation in different regions of China after classification by 500 MJ/m 2 [ …
In 2006, China surpassed the United States as the largest carbon emitter in the world, while in 2019 its CO 2 emissions exceeded 10 gigatons (Gt) for the first time (IEA, …
Yue 28 found that the annual average of R s from MERRA is 3–4 W/m 2 higher ... P. C., Chen, H. B. & Liang, F. Analyis of downwelling surface solar radiation in China from …
The phase of maximum temperature adjusted for solar radiation for the Plateau is similar to South China at the same latitude and later than the raw maximum temperature. REFERENCES Allen, R.J., Norris, J.R. …
9 · In the first seven months of 2024, wind and solar power generation totaled 1.05 trillion kilowatt hours, accounting for roughly 20 percent of China''s total electricity generation.
The spatial patterns of the mean annual R s demonstrate that western China has higher radiation resources, for example, in NW China and SW China, whereas eastern …
Atmospheric pollution by fine particulate matter (PM2.5) and ozone (O3) is a serious concern in China for its danger to human health and to the environment. As such, it …
To accurately provide a basis for the use of solar energy in mainland China, the optimized empirical model is adopted to analyze the variation trends and spatial patterns in …
Figure 7 illustrates the annual and multi-year mean DSR values for the period 1982–2020 over China. The diffuse solar radiation values range from 63.7 to 97.7 W m −2, …
In summary, although the projected trends of surface solar radiation varied according to different emission scenarios and seasons, except for summer, the seasonal and …
[5] Li et al. analyzed averaged annual daily departures in solar radiation from 1976 to 1990 at 55 stations in China while Zhang et al. studied changes in solar radiation …
Interpolating data from discrete points to a continuous surface, using a yearly statistical summary of solar radiation in China
This study aids in understanding China''s solar radiation variations, crucial for shaping effective energy policies towards carbon neutrality. Graphical abstract. Download: …