Article
Geosciences, Multidisciplinary
Zhiyan Zuo, Mingqian Li, Ning An, Dong Xiao
Summary: The research indicates that the two main modes of winter temperature in China are a spatially consistent pattern and a north-south dipole pattern. Global warming has led to an increase in extreme warm days and a decrease in extreme cold days in the spatially consistent pattern, with the Siberian High being a key factor influencing these temperature extremes.
SCIENCE CHINA-EARTH SCIENCES
(2022)
Article
Meteorology & Atmospheric Sciences
Weiwei Wang, Tuantuan Zhang, Junwen Chen, Qingquan Li, Song Yang, Yi Deng
Summary: Extreme cold events have significant impacts on ecosystems and human health. A quantitative analysis of the surface temperature anomalies associated with extreme cold events in China reveals that surface albedo, water vapor, atmospheric dynamics, and aerosols are the main contributors. Surface dynamics play a negative role. Atmospheric dynamics show different effects for extreme warm and cold years. Anthropogenic aerosols have a considerable impact on central-southern China. Clouds have a moderate impact on national-averaged temperature anomalies but a considerable effect on southern China.
Article
Meteorology & Atmospheric Sciences
Weiwei Wang, Song Yang, Qingquan Li, Tuantuan Zhang, Xingwen Jiang
Summary: Station observations and global reanalysis datasets were used to study the dominant modes of winter cold days (CDs) in China and their relationships with the Arctic Oscillation (AO) and El Nino-Southern Oscillation (ENSO). The dominant modes of CDs underwent an interdecadal shift around the 1980s. The first mode was significantly related to the AO in the P1 and ENSO in the P2, while the second mode was closely linked to ENSO in the P1 and the AO in the P2.
ATMOSPHERIC RESEARCH
(2023)
Article
Environmental Sciences
Xiaohuan Liu, Ming Chang, Jie Zhang, Jiao Wang, Huiwang Gao, Yang Gao, Xiaohong Yao
Summary: This study used the CMAQ model to simulate PM2.5 concentrations in different seasons in northern China in 2013, finding that underestimation of primarily emitted particles from local sources is the main cause of PM2.5 underpredictions during heavy haze days. The study also suggested that the assumption of gas-aerosol thermodynamic equilibrium in the model may result in an overprediction of inorganic salts on clear days.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Dongxue Fu, Yihui Ding
Summary: Over the past six decades, winter temperatures in China have shown an overall upward trend, but have stabilized or slightly decreased since the warming hiatus period began in 2006. There is a noticeable difference in temperature trends between North and South China, with North China experiencing more extreme cold events since 2006. This indicates that natural factors, alongside global warming, play a significant role in influencing winter temperature patterns in China.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Environmental Sciences
Leying Zhang, Shuxiu Hou, Zuowei Xie
Summary: Two extreme cold air events successively hit China, causing significant losses. This study explored the pathways of cold air from a Lagrangian perspective and identified different sources and routes for the two events. It found that positive height anomalies played a key role in the successiveness of the extreme cold events.
Article
Environmental Sciences
Paulina Tedesco, Alex Lenkoski, Hannah C. Bloomfield, Jana Sillmann
Summary: A transition to renewable energy, particularly wind energy, is crucial for mitigating climate change. However, energy production is susceptible to meteorological conditions, which vary at different time scales. To effectively design energy systems, it is important to consider the joint distribution of meteorological variables, such as cold and weak-wind events. We propose a methodology that uses Gaussian copulas to model the correlation between these events, while logistic regressions are used to model their marginal distributions.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Xiaodan Guan, Zhaokui Gao, Jianping Huang, Chenyu Cao, Kaiwei Zhu, Jiamin Wang
Summary: Regional anthropogenic warming caused stronger and shorter cold events during the winter of 2020-21, particularly in East Asia. Unlike previous cold events, these extreme cold events were a result of meridional circulation changes due to anthropogenic warming. The study highlights the significant role of anthropogenic factors in cold events.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Marine & Freshwater Biology
Adela J. Li, Guang-Jie Zhou, Racliffe W. S. Lai, Priscilla T. Y. Leung, Chen C. Wu, Eddy Y. Zeng, Gilbert C. S. Lui, Kenneth M. Y. Leung
Summary: This study investigates the impact of chemical pollution and temperature extremes on marine medaka fish. The results show that extreme temperatures aggravate the adverse effects of chemical exposure on the fish, making them more vulnerable to temperature changes and extreme thermal events.
AQUATIC TOXICOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Yueyue Yu, Yafei Li, Rongcai Ren, Ming Cai, Zhaoyong Guan, Wei Huang
Summary: This study investigates the mechanisms behind the extreme cold events that occurred in East Asia and North America during the 2020/21 winter. The results suggest that the strengthening of the low-level equatorward cold air branch of the isentropic mass circulation (IMC) played a crucial role in these events. The intensification of cold air transport in East Asia was influenced by Arctic sea ice loss, while the weakened cold air transport in North America was associated with warmer sea surface temperatures in the northeastern Pacific.
ADVANCES IN ATMOSPHERIC SCIENCES
(2022)
Article
Meteorology & Atmospheric Sciences
N. Freychet, S. F. B. Tett, A. A. Abatan, A. Schurer, Z. Feng
Summary: The study found that the frequency of cold events in South-East China is influenced by multiple factors, with climate models and observations indicating a possible impact of greenhouse gases on these events over the past 60 years, but uncertainties remain in trends. Both observations and models suggest that in the next few decades, the frequency of long-lasting cold events is expected to decrease.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Meteorology & Atmospheric Sciences
Yongli He, Xiaoxia Wang, Boyuan Zhang, Zhanbo Wang, Shanshan Wang
Summary: This study examines the response of extreme cold events (ECEs) to global warming. It finds that weak ECEs have significantly decreased in frequency, projection area, and total area, while strong ECEs show no significant trend except for an increase in Siberia and Canada. The study also reveals that the contrast responses of strong and weak ECEs are primarily influenced by the indirect effects of global warming.
Article
Meteorology & Atmospheric Sciences
Didac Pascual, Margareta Johansson
Summary: Winter warming events have significant impacts on the permafrost in the Arctic, with rain on snow events having a stronger influence on summer ground temperatures and active layer thickness.
WEATHER AND CLIMATE EXTREMES
(2022)
Editorial Material
Meteorology & Atmospheric Sciences
Xiangdong Zhang, Yunfei Fu, Zhe Han, James E. Overland, Annette Rinke, Han Tang, Timo Vihma, Muyin Wang
Summary: The three extreme cold weather events were caused by anomalies in three oceans and interactions between Arctic-lower latitude atmospheric circulation processes, influenced by a sudden stratospheric warming event. These events disrupted the stratospheric polar vortex and led to cold air outbreaks, with implications for prediction skill and policy decision making for resilience in One Health, One Future.
ADVANCES IN ATMOSPHERIC SCIENCES
(2022)
Article
Oceanography
Rodrigue Anicet Imbol Koungue, Peter Brandt
Summary: The study investigates the intraseasonal variability of the tropical eastern boundary upwelling region in the Atlantic Ocean using multiyear mooring and satellite data. Pronounced oscillations of alongshore velocity and sea level at periods of about 90 and 120 days were observed, with equatorial forcing via equatorial and coastally trapped waves. Variability is enhanced by local zonal wind fluctuations and linked to a second equatorial basin mode, with additional forcing likely originating in the central and western tropical North Atlantic.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Meteorology & Atmospheric Sciences
Meiru Zhang, Zhen-Qiang Zhou, Renhe Zhang, Yanke Tan, Min Wen
Summary: Previous research indicates that the interannual variability of surface air temperature (SAT) in India peaks in June due to the abrupt summer monsoon onset, whereas the Indochina Peninsula experiences its hottest month in April with larger SAT variability, influenced by factors such as easterly winds and anomalous ocean warming. The evolution of daily-mean SAT over the Indochina Peninsula from April to May is characterized by significant intraseasonal modulations, with delayed summer monsoon onset attributed to anomalous anticyclonic circulation and easterly wind anomalies.
Article
Meteorology & Atmospheric Sciences
Qing Tian, Min Wen, Renhe Zhang, Jingzhi Su
Summary: During the winter of 2015-2016, a significant warming event occurred in the troposphere in the Arctic region. This event was the most significant warming event since 1980 and was not fully dependent on lower level anomalies. The advection of warm air from northern Europe to the Arctic played a key role in the warming.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2023)
Review
Meteorology & Atmospheric Sciences
Wen Chen, Renhe Zhang, Renguang Wu, Zhiping Wen, Liantong Zhou, Lin Wang, Peng Hu, Tianjiao Ma, Jinling Piao, Lei Song, Zhibiao Wang, Juncong Li, Hainan Gong, Jingliang Huangfu, Yong Liu
Summary: This paper reviews the progress achieved in studying the multi-scale climate variability of the Asian monsoon, with a focus on the recent years. The achievements are summarized into four main topics: the onset of the South China Sea summer monsoon, the East Asian summer monsoon, the East Asian winter monsoon, and the Indian summer monsoon. New results are highlighted, including synchronized monsoon onset over specific regions, record-breaking mei-yu in 2020, recovery of the East Asian winter monsoon intensity, and the main driver of the Indian summer monsoon rainfall recovery. The paper concludes with a brief summary and further discussion on future research directions.
ADVANCES IN ATMOSPHERIC SCIENCES
(2023)
Review
Meteorology & Atmospheric Sciences
Yifeng Yu, Qinglong You, Zhiyan Zuo, Yuqing Zhang, Ziyi Cai, Wei Li, Zhihong Jiang, Safi Ullah, Xu Tang, Renhe Zhang, Deliang Chen, Panmao Zhai, Sangam Shrestha
Summary: Human society and ecosystems are more affected by climate extremes than by climate averages. Compound climate extremes, which arise from a combination of multiple climatic drivers, pose more severe risks. The influence of drivers for compound climate extremes is increasing under global warming. This study provides a comprehensive review of the definition, types, historical trends, projections, potential causes, and risks of compound climate extremes in China.
ATMOSPHERIC RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Dongdong Li, Renhe Zhang, Jianping Huang
Summary: This study explores the relationship between reduced sea ice concentration (SIC) in the Barents-Kara Seas and Ural circulation anomalies. It is found that when the SIC passes a critical threshold, a regime transition occurs in the Ural circulation patterns. The results suggest an increased incidence of both positive and negative anomalies of Ural atmospheric circulation under the recent SIC reduction.
Article
Meteorology & Atmospheric Sciences
Yanjun Qi, Renhe Zhang, Zhuo Wang
Summary: In summer 2020, southern China experienced severe flooding along the Yangtze River due to extreme rainfall. The study investigates the dynamic and thermodynamic conditions associated with the floods using rainfall data and reanalysis. It is found that the subseasonal variation of rainfall in the Yangtze River Basin (YRB) was dominated by a quasi-biweekly oscillation (QBWO) mode, influenced by the fluctuation of cold air mass and the transport of warm and moist air. The moisture convergence, enhanced by the convergence of specific humidity and warm temperature advection, played a critical role in the persistence of rainfall.
Article
Geosciences, Multidisciplinary
Lun Li, Renhe Zhang
Summary: This study examines the trends of precipitation over the Tibetan Plateau (TP) and the role of local mesoscale systems, TP vortices (TPVs). The authors find that the precipitation trends in TPVs-associated precipitation have experienced an interdecadal shift in the last two decades, with increases in the northern TP and decreases in the southern TP. They also explore the causes of changes in TPV frequency and find that changes in zonal winds over the TP and meridional winds across the northwestern TP boundary are responsible for the regionally different variations in TPV frequency. Changes in the Indian Ocean Dipole are suggested to contribute to the variations in wind patterns.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Zifan Ning, Renhe Zhang
Summary: The study investigates the influence of soil moisture on the onset of the East Asian subtropical summer monsoon (EASSM) using reanalysis data from 1981 to 2010. It is found that the EASSM is characterized by persistent southerly winds in spring. The onset of EASSM exhibits a significant correlation with soil moisture in southeastern China, with wetter conditions being associated with a later onset. The study also explores the physical process by which preceding soil moisture affects the EASSM onset.
JOURNAL OF METEOROLOGICAL RESEARCH
(2023)
Editorial Material
Meteorology & Atmospheric Sciences
Xiangdong Zhang, Xianyao Chen, Andrew Orr, James E. Overland, Timo Vihma, Muyin Wang, Qinghua Yang, Renhe Zhang
ADVANCES IN ATMOSPHERIC SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Lun Li, Renhe Zhang
Summary: The Tibetan Plateau is the highest plateau in the world and plays a crucial role in determining precipitation patterns in both local and downstream areas. Tibetan Plateau vortices (TPVs) are important rainfall triggers that greatly impact precipitation in downstream regions. Understanding TPVs is vital for predicting precipitation variations over the Tibetan Plateau and its surrounding areas. This review discusses recent progress in TPV studies, focusing on TPV evolution, eastward-moving mechanisms, impacts, and variations at different timescales. The interaction among large-scale circulations, TPV winds, and heating fields determines TPV evolution, with varying leading factors at different stages. TPVs are responsible for intense rainfall over the eastern Tibetan Plateau and contribute significantly to total summer precipitation. They also affect downstream weather systems, such as southwest vortices. TPVs exhibit distinctive diurnal, intraseasonal, and interannual variations, with different trends over the northern and southern Tibetan Plateau. However, the effects of topography and land surface conditions on TPVs, variations in TPVs and related precipitation under climate change, and techniques for identifying TPVs using multiple observational data are challenges that require further investigation.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Shuai Li, Jie Yang, Xudong Wang, Renhe Zhang, Zhiqiang Gong, Guolin Feng
Summary: This study evaluates and enhances the prediction capabilities of Seasonal-to-Subseasonal (S2S) models for the relationship between the summer Northwest Pacific subtropical high (NWPSH) in different months. The models underestimate the influences of the Boreal Summer Intraseasonal Oscillation 1 (BSISO1) and only capture the effects of the north Indian Ocean (NIO). However, by considering the strong correlation between the June and August NWPSH, the models' prediction skills for August precipitation are significantly improved.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Juan Dou, Renhe Zhang
Summary: The relationship between the variability of Antarctic sea ice concentration and sea surface temperature in the southern Indian Ocean is explored in this study. It is found that the sea ice concentration in certain areas of the southern Indian Ocean is significantly related to the sea surface temperature anomalies in the same region during spring. This relationship is independent of other climate factors and is driven by the warm and cold anomalies in the sea surface temperatures. The anomalies induce large-scale circulations and ultimately lead to changes in the sea ice concentration.
JOURNAL OF CLIMATE
(2023)
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
Multidisciplinary Sciences
Liang Qiao, Zhiyan Zuo, Renhe Zhang, Shilong Piao, Dong Xiao, Kaiwen Zhang
Summary: Soil moisture-atmosphere coupling induces non-linear warming via the 'warmer climate - drier soil' feedback, exerting an accelerating effect on global warming and extreme high temperatures. The projection shows that SA-driven warming will exceed 0.5°C over extratropical landmasses by the end of the 21st Century, increasing the likelihood of extreme high temperatures.
NATURE COMMUNICATIONS
(2023)
Article
Meteorology & Atmospheric Sciences
Yanyu Wang, Cheng Huang, Xiao-Ming Hu, Chong Wei, Jingyu An, Rusha Yan, Wenling Liao, Junjie Tian, Hongli Wang, Yusen Duan, Qizhen Liu, Wei Wang, Qianli Ma, Qianshan He, Tiantao Cheng, Hang Su, Renhe Zhang
Summary: This study quantifies the impact of emission reductions during the COVID-19 pandemic on carbon dioxide (CO2) concentrations in the Yangtze River Delta region of China. The results show that the reductions led to a decrease in CO2 concentrations in Shanghai and the region, with transportation and industry emissions being the main contributors to the decline.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
