Liangyuan Su's research while affiliated with Beijing Normal University and other places

Publications (7)

Article
Full-text available
Surface incident solar radiation (Rs) plays a key role in climate change on Earth. Rs can be directly measured, and it shows substantial variability on decadal scales, i.e. global dimming and brightening. Rs can also be derived from the observed sunshine duration (SunDu) with reliable accuracy. The SunDu-derived Rs has been used as a reference to d...
Preprint
Full-text available
Surface incident solar radiation (Rs) plays an essential role in climate change on Earth. Rs can be directly measured, and it shows substantial variability, i.e., global dimming and brightening, on decadal scales. Rs can also be derived from the observed sunshine duration (SunDu) with reliable accuracy. The SunDu-derived Rs was used as a reference...
Article
Full-text available
The recent severe and frequent PM2.5 (i.e., fine particles smaller than 2.5 μm) pollution in China has aroused unprecedented public concern. The first two-years of PM2.5 measurements in China are reported and compared with those of Europe and the U.S. The average PM2.5 concentration in China is approximately five times of that over Europe and Ameri...
Article
Full-text available
This study analyzed hourly mass concentration observations of PM2.5 (particulate matters with diameter less than 2.5 μm) at 512 stations in China from December 2013 to May 2015. We found that the mean concentrations of PM2.5 during the winter and spring of 2015 Dec. 2014 to Feb. 2015 and Mar. 2015 to May 2015) decreased by 20% and 14% compared to t...

Citations

... To remove the detected discontinuities in the WS raw -WS rea series, we employed a mean-matching adjustment using up to 5 years of data before and after each detected change point, as widely done in previous studies (Minola et al., 2016;Zhou et al., , 2021bMa et al., 2022). The most recent segment was chosen as the reference segment since it was usually measured by the most advanced instrument and thus probably most reliable. ...
... By 2017, PM 2.5 concentrations over the heavily polluted regions of eastern China showed a noticeable downward trend relative to 2013 Wang et al. 2020a). The concentration of air pollutants is significantly influenced by emissions and meteorological conditions (Jhun et al. 2015;Wang et al. 2018;He et al. 2017). Unfavorable meteorological conditions can increase air pollutants when emissions remain constant, and even play a dominant role in some cases . ...
... In Equation (2), I, P, A, and T have the same meaning as in Equation (1). To eliminate possible heteroscedastic effects in model (2), all variables were extended [49]. The logarithmic-extended STIRPAT model is as follows (3): ...