Article
Meteorology & Atmospheric Sciences
Xin Geng, Kyung-Min Noh, Kyungna Kim, Jong-Seong Kug
Summary: The response of the East Asian winter monsoon to the El Nino-Southern Oscillation exhibits seasonal variability, with a notable break in mid-January. This break is largely caused by interference from the abrupt phase reversal of the El Nino-driven North Atlantic Oscillation.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Meteorology & Atmospheric Sciences
Muhammad Rais Abdillah, Yuki Kanno, Toshiki Iwasaki, Jun Matsumoto
Summary: Cold surge occurrences in East Asia significantly impact weather variability in the region, especially for Southeast Asian countries. The tropical responses to these surges depend on their downstream pathways, with distinct precipitation signatures over the Maritime Continent. The classification of these surges into different groups, such as South China Sea surges, Philippines Sea surges, both, and blocked surges, highlights the interactions between the surges and pre-existing synoptic conditions over the tropics.
JOURNAL OF CLIMATE
(2021)
Article
Engineering, Environmental
Guangyuan Yu, Yan Zhang, Fan Yang, Baoshan He, Cangang Zhang, Zhong Zou, Xin Yang, Nan Li, Jun Chen
Summary: The study found that the concentrations of vanadium and nickel in the ambient air in Shanghai have decreased in recent years due to the implementation of marine fuel oil regulations, but nickel content is still enriched in in-use desulfurized residual oils and ship-emitted particles in coastal China.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Computer Science, Information Systems
Junpo Liu, Baigang Zhao, Lianbo Li
Summary: This paper presents a mathematical model for ship motion that can capture the maneuvering characteristics of ships and proposes a velocity-derived heading obstacle algorithm for collision avoidance. Simulation results demonstrate that the algorithm ensures ships can always keep a safe distance from each other.
Article
Geosciences, Multidisciplinary
Zhen Qu, Daven K. Henze, Helen M. Worden, Zhe Jiang, Benjamin Gaubert, Nicolas Theys, Wei Wang
Summary: Using satellite data for top-down estimates is essential for understanding the sources of air pollutants. In this study, a new framework based on the GEOS-Chem adjoint model was developed to estimate NOx, SO2, and CO emissions in East Asia. The results show improved agreement with surface measurements and provide insights into the drivers of peak emissions in China and India.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
H. Jiang, J. Zhang, S. Zhang, N. Zhong, S. Wan, G. I. Alsop, H. Xu, Q. Guo, Z. Yan
Summary: This study reveals the complex interplay between tectonic and climatic controls on sedimentary evolution in East Asia during the Palaeogene, with tectonic activity influencing geological environments through particle coarsening and reduced weathering, while climate factors impacting East Asia through global warming and cooling episodes.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Environmental
Tianyi Xu, Chengxin Zhang, Jingkai Xue, Qihou Hu, Chengzhi Xing, Cheng Liu
Summary: This study presents an improved estimation of NOx emissions using the Geostationary Environmental Monitoring Spectrometer (GEMS) and characterizes the hourly NOx emissions over cities in East Asia. The study highlights the significant diurnal variations in NOx emissions and the role of geostationary satellite observations in informing emission control policies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Ecology
Lei Zhang, Hanqin Tian, Hao Shi, Shufen Pan, Xiaoyu Qin, Naiqing Pan, Shree R. S. Dangal
Summary: Livestock in East Asia significantly contribute to methane emissions, and dynamic emission factors and slaughtered populations should be considered in estimation. Emission hotspots are mainly in eastern China, South Korea, and parts of Japan, shifting northward after 2000.
ECOSYSTEM HEALTH AND SUSTAINABILITY
(2021)
Article
Environmental Sciences
Ning Wang, Jian Chen, Yuanyuan Zhang, Yongming Xu, Wenzheng Yu
Summary: This study investigated the spatiotemporal variations in dust emissions and the relationship between dust emissions and large-scale atmospheric circulation in East Asia from 2000 to 2021. The main sources of dust emissions in East Asia were found to be the Taklimakan Desert, Gurbantonggut Desert, Turpan Basin, and Gobi Desert. Strong dust emissions occurred from March to May, mainly in the troposphere at 0-4 km height. The winter North Atlantic Oscillation (NAO) and Arctic Oscillation (AO) were significantly negatively correlated with East Asian dust emissions the following spring.
Article
Meteorology & Atmospheric Sciences
Tian Yu, Pan Xiaole, Jing Yujie, Zhang Yuting, Yao Weijie, Liu Hang, Lei Shandong, Wang Zifa
Summary: In spring 2021, there were several strong dust storms in East Asia, including the transport of dust from Mongolia Gobi and Inner Mongolia. Through analysis using forecast systems and satellite sensors, the mechanisms of transport and the impact on China were examined. The study found that North China was the most affected area, with high levels of dust optical depth and depolarization ratio. Additionally, it was observed that dust storms dominated within 6 km, while anthropogenic aerosols had a significant presence in South China.
ATMOSPHERIC RESEARCH
(2023)
Article
Environmental Sciences
Zhaoxiang Cao, Kuifeng Luan, Peng Zhou, Wei Shen, Zhenhua Wang, Weidong Zhu, Zhenge Qiu, Jie Wang
Summary: The study evaluates the accuracy of aerosol optical thickness products from different satellites in the East Asian Ocean. VIIRS shows the highest data accuracy, while MISR performs well in specific sea areas. The findings can help researchers choose the most accurate and reliable satellite data for studying atmospheric aerosols' impact and trends.
Article
Environmental Sciences
Shidong Fan, Ying Li
Summary: The relationships between oceanic emissions and air chemistry are complex and not fully understood. The impact of marine halogen emissions on the hydroxyl (OH) radical is crucial for regional air chemistry. This study aims to quantify the influence of marine-emitted halogens on OH and analyzes the pathways through which these halogens affect OH. Results show a complex response of OH production rate to marine halogen emissions, with both increases and decreases observed in different regions.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Oceanography
Laramie T. Jensen, Jay T. Cullen, Sarah L. Jackson, Loes J. A. Gerringa, Dorothea Bauch, Rob Middag, Robert M. Sherrell, Jessica N. Fitzsimmons
Summary: Recent studies have revealed a unique linear relationship between dissolved copper (Cu) and nickel (Ni) in the Arctic Ocean, which differs from other oceans. This relationship is driven by river inputs and shows distinct distribution patterns in surface and deep waters. Cu and Ni mainly originate from rivers, but Ni is additionally influenced by biological processes and shelf sediment processes, while Cu is mostly affected by mixing.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Environmental Sciences
Yi Yin, Frederic Chevallier, Philippe Ciais, Philippe Bousquet, Marielle Saunois, Bo Zheng, John Worden, A. Anthony Bloom, Robert J. Parker, Daniel J. Jacob, Edward J. Dlugokencky, Christian Frankenberg
Summary: The atmospheric methane growth rate stagnated in the early 2000s, but has been positive since 2007 with a significant acceleration starting in 2014, likely due to an increase in global CH4 emissions, with leading contributions from tropical wetlands and anthropogenic emissions in China. This surge in atmospheric growth rate has not been observed since the 1980s and corresponds to unprecedented global total CH4 emissions.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Yoojin Kang, Hyunyoung Choi, Jungho Im, Seohui Park, Minso Shin, Chang-Keun Song, Sangmin Kim
Summary: This study developed models using machine learning methods to estimate the surface concentrations of NO2 and O-3 in East Asia, with NO2 model having R-2 of 0.63-0.70 and nRMSE of 38.3-42.2%, and O-3 model having R-2 of 0.65-0.78 and nRMSE of 19.6-24.7%. Validation through various approaches showed satisfactory model performance.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Junri Zhao, Golam Sarwar, Brett Gantt, Kristen Foley, Barron H. Henderson, Havala O. T. Pye, Kathleen M. Fahey, Daiwen Kang, Rohit Mathur, Yan Zhang, Qinyi Li, Alfonso Saiz-Lopez
Summary: The introduction of oceanic dimethylsulfide (DMS) emissions and its atmospheric chemical reactions into the CMAQv53 model has a significant impact on tropospheric composition and air quality over the Northern Hemisphere, increasing sulfate and sulfur dioxide levels while decreasing aerosol nitrate concentration in the lower atmosphere. The effects of DMS chemistry are most pronounced in the summer and least in the fall, with hydroxyl and nitrate radical-initiated pathways oxidizing 75% of the DMS and halogen-initiated pathways oxidizing the remaining 25%. Overall, DMS chemistry leads to more acidic particles over seawater but has a relatively neutral impact on visibility over most of the seawater.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Haowen Li, Ying Chen, Shengqian Zhou, Fanghui Wang, Tianjiao Yang, Yucheng Zhu, Qingwei Ma
Summary: This study found that atmospheric deposition, along with phosphate input, can significantly enhance the chlorophyll a (Chl a) concentrations in eutrophic waters, facilitating the growth of diatoms and dinoflagellates. Soluble metals, especially copper, in aerosols were identified as key components affecting phytoplankton composition in the eutrophic sea.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Chao Zhang, Zongbo Shi, Junri Zhao, Yan Zhang, Yang Yu, Yingchun Mu, Xiaohong Yao, Limin Feng, Fan Zhang, Yingjun Chen, Xiaohuan Liu, Jinhui Shi, Huiwang Gao
Summary: This study found that ship-emitted particles have a stimulating effect on phytoplankton growth, particularly through nitrogen fertilization. Nitrogen oxides (NOx) emitted from ships contribute approximately 43% of atmospheric nitrogen deposition in the northwest Pacific Ocean (NWPO) and indirectly enhance the deposition of existing reduced nitrogen in the atmosphere, constituting about 15% of atmospheric nitrogen deposition flux.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Haowen Li, Shengqian Zhou, Yucheng Zhu, Ruifeng Zhang, Fanghui Wang, Yang Bao, Ying Chen
Summary: Research findings suggest that atmospheric deposition may impact the relative abundance of high-DMSP producers in the oceans, potentially contributing to climate change.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
Xiaofan Xing, Yuankang Xiong, Ruipu Yang, Rong Wang, Weibing Wang, Haidong Kan, Tun Lu, Dongsheng Li, Junji Cao, Josep Penuelas, Philippe Ciais, Nico Bauer, Olivier Boucher, Yves Balkanski, Didier Hauglustaine, Guy Brasseur, Lidia Morawska, Ivan A. Janssens, Xiangrong Wang, Jordi Sardans, Yijing Wang, Yifei Deng, Lin Wang, Jianmin Chen, Xu Tang, Renhe Zhang
Summary: Satellite observations are used to monitor the reincreasing economic activity associated with the lifting of control measures and its effect on the acceleration of COVID-19 cases. Near-real-time satellite NO2 observations provide a better prediction of the deceleration of COVID-19 cases compared to other predictors, indicating the driving role of NO2 in economic activity reduction.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Multidisciplinary Sciences
Xiaofan Xing, Rong Wang, Nico Bauer, Philippe Ciais, Junji Cao, Jianmin Chen, Xu Tang, Lin Wang, Xin Yang, Olivier Boucher, Daniel Goll, Josep Penuelas, Ivan A. Janssens, Yves Balkanski, James Clark, Jianmin Ma, Bo Pan, Shicheng Zhang, Xingnan Ye, Yutao Wang, Qing Li, Gang Luo, Guofeng Shen, Wei Li, Yechen Yang, Siqing Xu
Summary: The study presents a promising option to reduce carbon emissions in China's power sector using BECCS technology, estimating a marginal cost curve and spatially explicit method. Retrofitting 222GW of coal power plants in 2836 counties could potentially abate 1.0 Gt CO2-eq annually, but logistical challenges remain.
NATURE COMMUNICATIONS
(2021)
Article
Meteorology & Atmospheric Sciences
Shengqian Zhou, Ying Chen, Adina Paytan, Haowen Li, Fanghui Wang, Yucheng Zhu, Tianjiao Yang, Yan Zhang, Ruifeng Zhang
Summary: The study found that terrestrial sources play a significant role in MSA in the East China Sea, while they are not as important in the Gulf of Aqaba. There is a good correlation between aerosol MSA and air mass exposure to surface phytoplankton biomass, which can help in constructing parameterizations for obtaining the spatiotemporal distributions of marine biogenic aerosol components using satellite ocean color datasets.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Engineering, Environmental
Rong Wang, Yechen Yang, Xiaofan Xing, Lin Wang, Jianmin Chen, Xu Tang, Junji Cao, Lidia Morawska, Yves Balkanski, Didier Hauglustaine, Philippe Ciais, Jianmin Ma
Summary: By using a statistical model that takes into account both meteorology and primary emissions, the relationship between PM2.5 concentration and climate change can be better understood. This model reduces errors and suggests that climate change may have a greater impact on PM2.5 than previously thought.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Shubha Verma, Sanhita Ghosh, Olivier Boucher, Rong Wang, Laurent Menut
Summary: This study evaluates the impact of black carbon (BC) on population exposure, morbidity, and mortality in the Indo-Gangetic plain. The results show a significant population exposure to BC, with more than 60 million people living in high-concentration areas. In terms of cardiovascular disease mortality, 62% of the burden is attributable to BC exposure in the megacity and 49% in the semiurban area. By implementing emission reduction strategies, over 400,000 lives can potentially be saved from cardiovascular disease mortality annually.
Article
Multidisciplinary Sciences
Siqing Xu, Rong Wang, Thomas Gasser, Philippe Ciais, Josep Penuelas, Yves Balkanski, Olivier Boucher, Ivan A. Janssens, Jordi Sardans, James H. Clark, Junji Cao, Xiaofan Xing, Jianmin Chen, Lin Wang, Xu Tang, Renhe Zhang
Summary: The potential of large-scale bioenergy with carbon capture and storage (BECCS) to limit global warming within 2 degrees Celsius may be hindered by the negative effects of climate change on crop yields, which threatens food security. Early mitigation measures, preferably before 2040, are urgently needed to avoid irreversible climate change and serious food crises.
Article
Multidisciplinary Sciences
Yijing Wang, Rong Wang, Katsumasa Tanaka, Philippe Ciais, Josep Penuelas, Yves Balkanski, Jordi Sardans, Didier Hauglustaine, Wang Liu, Xiaofan Xing, Jiarong Li, Siqing Xu, Yuankang Xiong, Ruipu Yang, Junji Cao, Jianmin Chen, Lin Wang, Xu Tang, Renhe Zhang
Summary: China aims to achieve carbon neutrality by 2060, requiring a significant increase in the capacity of photovoltaic (PV) and wind power. However, current projections indicate that the capacity will only reach a level of 5-9.5 PWh/year by 2060. Through optimized deployment of PV and wind power plants, coupled with advanced transmission and energy storage technologies, the capacity can be increased to 15 PWh/year, accompanied by a substantial reduction in the cost of carbon abatement. To achieve this, the annual investment in PV and wind power needs to ramp up significantly over the coming decades.
Article
Environmental Sciences
Junri Zhao, Weichun Ma, Kelsey R. Bilsback, Jeffrey R. Pierce, Shengqian Zhou, Ying Chen, Guipeng Yang, Yan Zhang
Summary: In this study, the researchers estimated the emissions of Dimethylsulfide (DMS) using a machine learning method and simulated its atmospheric chemistry and radiative effects. They evaluated the contributions of DMS to aerosol and cloud condensation nuclei concentrations, as well as its radiative effects over the Asian region. The findings highlight the importance of understanding DMS emissions and their impact on climate.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
