Article
Environmental Sciences
Chenwei Fang, Jim M. Haywood, Ju Liang, Ben T. Johnson, Ying Chen, Bin Zhu
Summary: Using the UK Earth System Model version 1 (UKESM1), this study finds that reductions in carbonaceous aerosol and SO2 emissions can significantly impact the South Asian summer monsoon and East Asian summer monsoon, leading to changes in the large-scale circulation over Asia. Reductions in carbonaceous aerosols extend and intensify the summer rainy season in South Asia and East Asia, while reductions in SO2 result in a shorter and weaker rainy season. Overall, decreasing both types of aerosol emissions enhances monsoon precipitation and 850 hPa circulation.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Meteorology & Atmospheric Sciences
Chao He, Wen Zhou, Tim Li, Tianjun Zhou, Yuhao Wang
Summary: Anthropogenic emissions decreased during the COVID-19 pandemic, leading to an enhanced East Asian summer monsoon (EASM) in terms of precipitation and southerly wind at lower troposphere. This enhancement is a fast response to reduced aerosols and is supported by both observational and simulated evidence. The mechanism behind the enhancement is the enhanced zonal thermal contrast between Asian continent and the western North Pacific in the troposphere, due to reduced aerosol concentration over Asian continent and associated latent heating feedback.
Article
Meteorology & Atmospheric Sciences
Zhinan Shao, Hai Wang, Yu-Fan Geng, Chenrui Diao, Yangyang Xu, Xiao-Tong Zheng
Summary: Anthropogenic aerosols have had a significant impact on the East Asian summer monsoon since the industrial revolution. This study examines the remote influence of changes in European aerosol emissions on the EASM, and finds that the decline in European aerosol emissions after the 1980s has contributed to an enhanced EASM.
Article
Environmental Sciences
Yuheng Tang, Anmin Duan
Summary: The study utilizes convolutional neural networks and transfer learning to predict the East Asian summer monsoon, demonstrating highly consistent and quantitatively strong predictive features in signal contribution.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Bingliang Zhuang, Yiman Gao, Yaxin Hu, Huimin Chen, Tijian Wang, Shu Li, Mengmeng Li, Min Xie
Summary: This study investigates the influence of different aerosol mixing states on the interaction between aerosols and the East Asian summer monsoon (EASM) using an online coupled regional climate-chemistry model. The results show that anthropogenic aerosols have high loadings and heterogeneous spatial distributions in East Asia, with black carbon aerosol loading accounting for more than 13% of the totals in summer. Different aerosol mixing states lead to significant variations in aerosol single scattering albedos and aerosol instantaneous direct radiative forcing. The findings have implications for better understanding environmental and climate change issues in East Asia.
Article
Meteorology & Atmospheric Sciences
Jun-Hyeok Son, Kyong-Hwan Seo
Summary: This study reveals the dynamical mechanism for the interannual variations of the East Asian summer monsoon (EASM) precipitation based on the topographically forced stationary Rossby wave theory and interannual variability of the upstream zonal wind speed. The variations in upstream wind speed play a crucial role in the position and evolution of the EASM rainband.
Article
Meteorology & Atmospheric Sciences
Chao Liu, Yang Yang, Hailong Wang, Lili Ren, Jiangfeng Wei, Pinya Wang, Hong Liao
Summary: Since the implementation of the Air Pollution Prevention and Control Action Plan in 2013, aerosol emissions in East Asia have decreased significantly, while emissions in South Asia have continued to increase, resulting in a dipole pattern of aerosol emissions between the two regions. A study investigating the East Asian summer monsoon (EASM) responses to these changes found that the reduction in East Asian emissions alone led to a positive aerosol effective radiative forcing (ERF) and a slight warming in summer. When considering both the emission reductions in East Asia and the increases in South Asia, the ERF and warming over central-eastern China were further enhanced, while the rainfall decreased slightly. Overall, the study highlights the important role of South Asian aerosols in changing the East Asian climate.
JOURNAL OF CLIMATE
(2023)
Article
Environmental Sciences
Ross Herbert, Laura J. Wilcox, Manoj Joshi, Ellie Highwood, Dave Frame
Summary: Anthropogenic aerosols have a stronger impact on the Asian summer monsoon than greenhouse gas emissions in South and East Asia, and reducing aerosol emissions can have non-linear effects on the monsoon response.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
Jie Wu, Zhengguo Shi, Yongheng Yang
Summary: This study evaluates the impact of the Younger Dryas event on Asian climate characteristics using modeling data, revealing that the cooling signal caused by meltwater flux from the North Atlantic spreads to the whole Eurasian region, leading to a weakened East Asian summer monsoon and suppressed summer precipitation over East, South, and Central Asia.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Meteorology & Atmospheric Sciences
Kairan Ying, Dabang Jiang, Xiaogu Zheng, Carsten S. Frederiksen, Difei Deng
Summary: This study finds that three best East Asian summer monsoon indices can explain a large portion of the variability in East Asian summer monsoon rainfall, including some potential predictable factors such as El Nino-Southern Oscillation, Arctic Oscillation, and sea surface temperatures in the western Pacific, tropical and southern Atlantic, and southern Indian oceans.
Article
Meteorology & Atmospheric Sciences
Shu Gui, Ruowen Yang, Feng Zeng, Jinxin Cheng
Summary: This study investigates the interdecadal variability of the interface between the Indian summer monsoon and the East Asian summer monsoon. Results suggest that this variability is closely linked to two air-sea coupled modes, which influence the strength of the East Asian summer monsoon by affecting the western North Pacific subtropical high and causing cyclonic and anticyclonic anomalies. In recent decades, the impact of one of these modes has weakened, while the other has become more influential on this variability.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Zhongda Lin, Cholaw Bueh
Summary: This study investigates the interannual variability of the summer East Asian trough (EAT) and its impact on rainfall using the ERA5 dataset. The results show that changes in EAT intensity lead to increased rainfall in the East Asian subtropical rainy belt and decreased rainfall in North China. The variability of EAT intensity is significantly influenced by the extratropical Arctic Oscillation and tropical rainfall anomalies. Moreover, the EAT intensity is connected to summer sea surface temperature anomalies in the tropical eastern Pacific.
Article
Meteorology & Atmospheric Sciences
Shu Gui, Ruowen Yang, Feng Zeng, Jinxin Cheng
Summary: This study investigates the interdecadal variability of the interface between the Indian summer monsoon and the East Asian summer monsoon. Results suggest that this variability is characterized by a zonal movement associated with variations between the Indian summer monsoon and the East Asian summer monsoon. This variability is closely linked to two air-sea coupled modes, resembling the Asian-Pacific Oscillation and the North Atlantic tripole pattern. Modeling results confirm the influence of these patterns on the interdecadal variability.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Lingying Chen, Wen Chen, Peng Hu, Shangfeng Chen, Xiadong An
Summary: This study examines the climatological characteristics of the retreat of the East Asian summer monsoon (EASM) based on observation and reanalysis data. The study finds that the retreat of the EASM is associated with the strengthening of northerly winds over coastal East Asia, the eastward movement of the western Pacific subtropical high, and the southeastward movement of the divergent center in the upper troposphere. The retreat of the EASM is also accompanied by decreased rainfall, the decline of the wet season, and broadscale cooling over East Asia.
Article
Engineering, Environmental
Xiaohui Wang, Kai Liu, Lixin Zhu, Changjun Li, Zhangyu Song, Daoji Li
Summary: The study shows that the East Asian summer monsoon effectively transports atmospheric microplastics from Vietnam, the Philippines, and Malaysia to southeastern China, with only some of the microplastics entering the marine ecosystem. During the East Asian summer monsoon season, the average abundance of atmospheric microplastics in the sampling area was 0.39 items/100 m3, with high variability among sampling sites.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Meteorology & Atmospheric Sciences
Junyu Mu, Zhili Wang
Summary: The study found that aerosol forcing leads to the weakening of the East Asian summer monsoon circulation and decreases in precipitation, primarily through fast atmospheric responses. Additionally, changes in land-sea thermal contrasts induced by aerosols play a key role in driving the weakening of the East Asian summer monsoon.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Zhili Wang, Lei Lin, Yangyang Xu, Huizheng Che, Xiaoye Zhang, Hua Zhang, Wenjie Dong, Chense Wang, Ke Gui, Bing Xie
Summary: The study reveals that CMIP6 models fail to accurately capture the observed trends of aerosol optical depth over Asia, mainly due to problematic anthropogenic aerosol emissions adopted by the models. Differences in simulated regional aerosol radiative forcing and temperature responses over Asia are evident when using different emissions inventories. Additionally, some widely adopted CMIP6 pathways underestimate the recent decline in anthropogenic aerosol emissions over China.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2021)
Article
Meteorology & Atmospheric Sciences
Dongdong Yang, Hua Zhang, Zhili Wang, Shuyun Zhao, Jiangnan Li
Summary: The study reveals that changes in fine particulate matter (PM2.5) and coarse particulate matter (CPM) have different and sometimes opposite effects on climate. Increases in PM2.5 lead to significant cooling effects on climate, while changes in CPM produce smaller and even opposite effects.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Lin Liu, Deying Wang, Zhili Wang, Junting Zhong, Yanhong Zhang, Renguang Wu, Xiaoye Zhang
Summary: This study investigates the variations of March dust activities in northern East Asia from 1980 to 2021, and analyzes the roles of atmospheric circulation and remote sea surface temperature in these changes. The results show that dust impacts in northeastern East Asia have been increasing, affecting downstream areas such as East Asia, the North Pacific, and western North America. The large-scale atmospheric circulation anomalies over Eurasia play a significant role in the increased dust activities. Furthermore, these anomalies are forced by North Atlantic sea surface temperature anomalies. The study suggests that predicting near-term dust activities can be possible by extrapolating the long-term North Atlantic sea surface temperature anomalies.
ATMOSPHERIC RESEARCH
(2022)
Article
Astronomy & Astrophysics
Yangyang Xu, Lei Lin, Chenrui Diao, Zhili Wang, Susan Bates, Julie Arblaster
Summary: The response of precipitation extremes (PEs) to global warming is found to be nonlinear. There are concerns regarding the accuracy of approximating the PE response to a single forcing using simulations that exclude one specific forcing. Previous studies suggesting a larger sensitivity of PE to aerosol forcing compared to greenhouse gases are questioned. This study reevaluates the PE sensitivity to greenhouse gases and aerosols using CESM1 ensemble simulations and confirms that PE sensitivity to aerosols is stronger than that due to greenhouse gases within similar warming regimes, but the difference is smaller than previously estimated. The study also suggests that the additivity assumption is largely valid for isolating the PE response due to aerosol forcing from the simulations when the warming regime is small.
EARTH AND SPACE SCIENCE
(2022)
Article
Meteorology & Atmospheric Sciences
Zhili Wang, Chense Wang, Su Yang, Yadong Lei, Huizheng Che, Xiaoye Zhang, Qiuyan Wang
Summary: Accurate representation of surface solar radiation (SSR) trends is crucial for global climate models (GCMs) to accurately reproduce historical climate evolution. This study examines SSR trends in China from 1961 to 2014 and finds that the observed trends differ from the simulated trends in GCMs. The underestimation of anthropogenic aerosol emissions, especially black carbon emissions, is identified as a possible cause for the discrepancy. Improving the inventory of anthropogenic aerosol emissions is suggested to enhance the accuracy of regional SSR evolution in GCMs.
ATMOSPHERIC RESEARCH
(2022)
Article
Environmental Sciences
Yadong Lei, Xu Yue, Zhili Wang, Hong Liao, Lin Zhang, Chenguang Tian, Hao Zhou, Junting Zhong, Lifeng Guo, Huizheng Che, Xiaoye Zhang
Summary: The land ecosystems of China play a crucial role in absorbing atmospheric carbon dioxide, but are negatively impacted by severe ozone pollution. This study highlights the importance of sectoral and regional emission controls in mitigating ozone damage to ecosystem productivity in the Yangtze River Delta.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Meteorology & Atmospheric Sciences
Xiaochao Yu, Hua Zhang, Bing Xie, Zhili Wang, Shuyun Zhao, Defeng Zhao
Summary: This study quantitatively estimates the impacts of the Covid-19 pandemic on greenhouse gas and aerosol emissions using an aerosol-climate model. The results show that the emissions reduction under green recoveries leads to increased anthropogenic radiative forcings, while increased emissions under fossil-fueled recovery scenarios contribute to higher radiative forcings.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Environmental Sciences
Chen-Se Wang, Zhi-Li Wang, Ya-Dong Lei, Hua Zhang, Hui-Zheng Che, Xiao-Ye Zhang
Summary: This study examines the impact of anthropogenic aerosol emissions on the East Asian summer monsoon and climate in eastern China using different emission inventories. The results show that the changes in aerosol emissions and the resulting temperature and precipitation changes in eastern China are opposite under the two inventories.
ADVANCES IN CLIMATE CHANGE RESEARCH
(2022)
Article
Environmental Sciences
Yadong Lei, Zhili Wang, Xiaoye Zhang, Huizheng Che, Xu Yue, Chenguang Tian, Junting Zhong, Lifeng Guo, Lei Li, Hao Zhou
Summary: This study assesses the quantitative benefits of population exposure to extreme heat under different carbon neutrality scenarios and finds that low-carbon policies can significantly reduce the extent of population exposure to extreme heat, especially in regions with high population growth and limited medical infrastructure.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Ke Gui, Huizheng Che, Lin Tian, Yaqiang Wang, Chong Shi, Wenrui Yao, Yuanxin Liang, Lei Li, Yu Zheng, Lei Zhang, Zhaoliang Zeng, Junting Zhong, Zhili Wang, Xiaoye Zhang
Summary: The Hunga Tonga-Hunga Ha'apai eruption was one of the most explosive volcanic eruptions of the 21st century, with volcanic aerosols breaking through the tropopause and forming an ash plume in the lower stratosphere. This ash plume moved rapidly westward for thousands of kilometers, resulting in a significant increase in atmospheric aerosol loading in northern Australia. The eruption also had a remarkable impact on the stratospheric AOD and radiative balance in the tropical southern hemisphere.
Article
Environmental Sciences
Yadong Lei, Zhili Wang, Deying Wang, Xiaoye Zhang, Huizheng Che, Xu Yue, Chenguang Tian, Junting Zhong, Lifeng Guo, Lei Li, Hao Zhou, Lin Liu, Yangyang Xu
Summary: Achieving global carbon neutrality will have positive impacts on solar PV and wind energy production and enhance their stability. This study uses multi-model simulations to demonstrate that deep mitigation pathways can lead to an increase in solar PV yield, especially in Asia. Additionally, a shift in wind energy production is projected from west to east by the mid-twenty-first century. These findings emphasize the importance of renewable energy sources in achieving global carbon neutrality and highlight Asian regions as potential hotspots for renewable resources in the future.
NATURE CLIMATE CHANGE
(2023)
Article
Environmental Sciences
Nanxuan Shang, Ke Gui, Hujia Zhao, Wenrui Yao, Hengheng Zhao, Xinglu Zhang, Xutao Zhang, Lei Li, Yu Zheng, Zhili Wang, Yaqiang Wang, Huizheng Che, Xiaoye Zhang
Summary: Recent years in China have seen an increase in regional ozone (O-3) pollution. This study examined the yearly variation in daily maximum 8-hour average O-3 concentration (MDA8-O-3) in Northeast China (NEC) and its subregions from 2013 to 2021, and identified the key meteorological drivers behind this variability. The results showed a high-south and low-north pattern of MDA8-O-3 in NEC, with a hotspot in the Bohai Rim area. The increase in annual MDA8-O-3 was primarily driven by changes in relative humidity and surface solar radiation downward (SSRD).
ATMOSPHERIC POLLUTION RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Hengheng Zhao, Ke Gui, Wenrui Yao, Nanxuan Shang, Xutao Zhang, Xinglu Zhang, Lei Li, Yu Zheng, Zhili Wang, Hong-Li Ren, Hong Wang, Junying Sun, Jian Li, Huizheng Che, Xiaoye Zhang
Summary: This study used data from OCO-2 and OCO-3 satellites to investigate the seasonal and diurnal variations of CO2 in typical land cover biomes in China, and its relationship with meteorological factors. The results showed regional and seasonal differences in CO2 concentrations, influenced by meteorological conditions.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Yingfang Li, Zhili Wang, Yadong Lei, Huizheng Che, Xiaoye Zhang
Summary: The reduction of non-methane short-lived climate forcers emissions will have significant impacts on future climate extremes and population exposure risks in Asia. The reduction of non-methane SLCF emissions will increase global annual mean effective radiative forcing and amplify the greenhouse gas-induced global surface warming. The impact of temperature and precipitation extremes will be most significant in eastern and southern Asia.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)