Distribution of solar radiation in China
Variability in Direct and Diffuse Solar Radiation Across China
This study improved methods to better estimate surface direct (R dir) and diffuse (R dif) solar radiation from sunshine duration in ChinaThis study identified a spurious steeper downtrend in the observed R dir in China from 1958 to 1989, implying an overestimation of global dimming; R dir decreases by −3.52 W m −2 per decade, and R dif increases by 0.84 W m −2
The spatial distribution of China''s solar energy resources and the
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 MJm −2. Moreover, the optimum tilt angle value in different regions of China is found to range between 14.5°and 49.1°, and the theoretical optimum tilt angle value
Mapping of 10-km daily diffuse solar radiation across China from
To address this gap, a 41-year (1982–2022) daily diffuse solar radiation dataset (CHDSR) is constructed with a spatial resolution of 10 km, based on a new ensemble model
Temporal Evolution, Oscillation and Coherence Characteristics
The annual global solar radiation in China can be roughly divided into east and west sections by drawing a straight line between Xilinhot in Inner Mongolia and Tengchong in Yunnan. 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
Spatial and temporal characteristics of surface solar radiation in
To accurately evaluate the nature of solar energy resources throughout China, we first need to understand the spatial and temporal distribution characteristics of solar radiation (He et al., 2003; Huang et al., 2017).
Variation and spatial distribution of surface solar radiation in China
The surface solar radiation in Eastern China, Central China and part of North China decreased even more sharply than west of China. Thicker aerosol optical depth was with larger trend of the surface solar radiation decrease, it indicated that aerosol pollution plays an important role in the decline of surface solar radiation.
The spatial distribution of China''s solar energy resources and the
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
中国不同时间尺度地表太阳总辐射估算研究
通过对比分析以日值和月值为起点的地表太阳总辐射计算模型的精度,确定了全国不同省份和区域的不同时间尺度（月、季节、生长季和年）地表太阳总辐射计算模型,并探讨了经验系数 a 、 b 值的分布及变化特征。 结果表明,以日值和月值为
近50年来中国地面太阳辐射变化及其空间分布
The results showed as followed: (1) Similar with most parts of the world, China''s surface solar radiation have experienced an earlier decreased and later raised process, which known as that the earth changed from ''global dimming'' to ''global brightening''; The surface solar radiation has been decreasing tendencies in recent 50 years in China, but
Mapping of 10-km daily diffuse solar radiation across China from
To address this gap, a 41-year (1982–2022) daily diffuse solar radiation dataset (CHDSR) is constructed with a spatial resolution of 10 km, based on a new ensemble model that combines the clear-sky irradiance estimated by the REST2 model and a machine-learning technique using precise cloud information derived from reanalysis data.
What is the distribution of solar energy resources in China
Figure 1 Distribution of China''s four solar radiation resource belts. 2.Several major characteristics of China''s solar resource distribution. The border of China is from the south of Zengmu Ansha in the Nansha Islands near 4°N latitude, north to the heart of Heilongjiang River north of Mohe, Heilongjiang Province at 52°32''N latitude, west from the Pamirs near 73°E
中国不同时间尺度地表太阳总辐射估算研究
通过对比分析以日值和月值为起点的地表太阳总辐射计算模型的精度,确定了全国不同省份和区域的不同时间尺度（月、季节、生长季和年）地表太阳总辐射计算模型,并探讨了经验系数 a 、 b 值的分布及变化特征。 结果表明,以日值和月值为起点建立的月、四季、生长季和年地表太阳总辐射计算模型精度无显著性差异,相对误差均低于8.5%,但以日值为起点的计算模型 a 、 b 值变异性更
Solar Radiation Allocation and Spatial Distribution in Chinese Solar
Solar radiation is the sole energy source for Chinese solar greenhouse agriculture. A favorable light environment is the foundation of a desirable crop growth environment, and it is key in solar greenhouse design. In this study, a mathematical model is established to quantitatively evaluate the solar greenhouse light environment. The model was
Variation and Spatial distribution of Surface Solar Radiation in China
The results showed that in China, the reducing trend of surface solar radiation did not persist after the 1990, instead, an increasing trend had been observed since the late 1980s, and the trend and turning points of surfaceSolar radiation in China are consistent with the global trend. Under the background of global warming, the gross radiation intensity on the ground changes obviously,
Daily Global Solar Radiation in China Estimated From
Based on observations from 2,379 meteorological stations along with scare solar radiation observations, the random forest (RF) model is employed to construct a high-density network of daily global solar radiation (DGSR) and its spatiotemporal variations in China.
High-resolution assessment of solar radiation and energy potential in China
Global solar radiation (R s) is a key parameter for determining the energy yields of solar photovoltaic (PV) systems.However, long-term R s data are not available in most regions of China, impeding the management and development of PV systems. In this study, a novel model for estimating R s was developed and coupled with a PV power model and inverse distance
Variation and Spatial distribution of Surface Solar Radiation in China
Qi et al. reported that the interannual trends and variations of surface solar radiation decreased in both East and West China during 1961-2010, and suggested that aerosol pollutants were the main
A Revisit of Direct and Diffuse Solar Radiation in
Spatial distribution of the 11 solar radiation stations across China with homogeneous direct and diffuse radiation observations for 1961–2016. The gray scale of the star symbols indicates the elevation (m) of the stations.
Mapping of 10-km daily diffuse solar radiation across China from
To address this gap, a 41-year (1982–2022) daily diffuse solar radiation dataset (CHDSR) is constructed with a spatial resolution of 10 km, based on a new ensemble model that combines the...
Daily Global Solar Radiation in China Estimated From
Based on observations from 2,379 meteorological stations along with scare solar radiation observations, the random forest (RF) model is employed to construct a high-density network of daily global solar radiation
Evaluation of Reanalysis Surface Incident Solar Radiation Data in China
These reanalysis data are widely used in the field of atmospheric sciences, for example, surface temperature changes, regional precipitation distribution, and surface solar radiation distribution
High-resolution assessment of solar radiation and energy potential in China
Western China is an optimal location for solar photovoltaic power plants. Global solar radiation (Rs) is a key parameter for determining the energy yields of solar photovoltaic (PV) systems. However, long-term Rs data are not available in most regions of China, impeding the management and development of PV systems.
Spatial and temporal characteristics of surface solar radiation in
To accurately evaluate the nature of solar energy resources throughout China, we first need to understand the spatial and temporal distribution characteristics of solar radiation
近50年来中国地面太阳辐射变化及其空间分布
The results showed as followed: (1) Similar with most parts of the world, China''s surface solar radiation have experienced an earlier decreased and later raised process, which known as
High-resolution assessment of solar radiation and energy
Western China is an optimal location for solar photovoltaic power plants. Global solar radiation (Rs) is a key parameter for determining the energy yields of solar photovoltaic
Daily Global Solar Radiation in China Estimated From
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.
Temperature annual cycle variations and responses to surface solar
Its variation is influenced by surface solar radiation, which plays a key role in surface energy budgets. In this study, the Fourier transform method is used to analyse the spatial distribution and long-term variations in temperature phase, amplitude, and baseline terms between 1960 and 2016 in China. Mean surface air temperature has a north
Variation and spatial distribution of surface solar
The surface solar radiation in Eastern China, Central China and part of North China decreased even more sharply than west of China. Thicker aerosol optical depth was with larger trend of the surface solar radiation
6 FAQs about [Distribution of solar radiation in China]
Where does solar radiation come from in China?
The results of both studies indicate that insolation is highest on the Tibetan Plateau and lowest in the Sichuan Basin, and suggest that the receipt of solar radiation in China is impacted by both seasonal and interannual variations.
What is the annual solar radiation value in China?
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 MJm −2.
How can we estimate China's Daily solar radiation?
Liu et al. developed a generalized model for estimating China's daily by using the , , and data of 98 solar radiation stations and 562 non-radiation stations in China, combined with solar radiation data, in addition to and data.
Why is solar radiation so strong in China?
Thus, the amount of solar radiation reaching the ground is relatively small. Furthermore, there is more land in the north, and the overall climate is dry, leading to strong solar radiation in general. Fig. 3. Spatial distribution of annual I g in China.
What is the spatial distribution of seasonal diffuse solar radiation in China?
Seasonal diffuse solar radiation Fig. 9 shows the seasonal spatial distribution of I d in China. Looking at the figure, it is noted that the spatial distribution of seasonal I d in the western region is relatively stable. For instance, the Tarim Basin has high values in all seasons.
What is the average diffuse solar radiation (DSR) in China?
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, with a 39-year average value of 77.0 W m −2.
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