Article
Geosciences, Multidisciplinary
Jiaqing Xue, Jing-Jia Luo, Wenjun Zhang, Toshio Yamagata
Summary: The interactions between El Nino-Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) have significant implications for global climate variability and seasonal climate predictions. Observational analysis suggests that the relationship between ENSO and IOD in different basins is time-varying and related to the Atlantic Multidecadal Oscillation (AMO), with a weakened relationship during AMO warm phases. Atlantic pacemaker simulations successfully reproduce the decadal fluctuations in the ENSO-IOD relationship and its connection to the AMO. The warm sea surface temperature (SST) anomalies associated with the AMO drive climate changes in the Indo-Pacific region, including cooling of the central Pacific and deepening of the thermocline in the eastern Indian Ocean, which decouples the IOD from ENSO by modulating ocean-atmosphere feedback.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Ruiqiang Ding, Hyacinth C. Nnamchi, Jin-Yi Yu, Tim Li, Cheng Sun, Jianping Li, Yu-Heng Tseng, Xichen Li, Fei Xie, Juan Feng, Kai Ji, Xumin Li
Summary: The connection between the North Tropical Atlantic (NTA) sea surface temperature (SST) anomalies and El Nino-Southern Oscillation (ENSO) events varies considerably over multidecadal timescales and is mainly controlled by the multidecadal variability of the North Atlantic Oscillation (NAO). During the positive phase of the NAO, the NTA impact on ENSO is amplified due to strengthening of precipitation over the equatorial Atlantic and enhancement of the persistence of NTA SST anomalies.
NATURE COMMUNICATIONS
(2023)
Article
Geosciences, Multidisciplinary
Shuai-Lei Yao, Wen Zhou, Fei-Fei Jin, Fei Zheng
Summary: The study suggests that a cooling in sea surface temperature due to Atlantic Multidecadal Variability can trigger a pan-Pacific response through wind-induced anomalies, leading to the development of a warm-phase pattern similar to IPO.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Yanan Chen, Dehai Luo, Linhao Zhong
Summary: This study examines the multidecadal regulation of wintertime extreme cold temperatures over Eurasia by the change in North Atlantic sea surface temperature, showing a distinct interdecadal transition in the warm Arctic-cold Siberia trend pattern. The positive trend in the WACS pattern during the later period coincides with the transition of the Atlantic Multidecadal Oscillation (AMO) from negative to positive phase. The North Atlantic SST forcing on the WACS also exhibits a multiple time-scale feature, with both long-term and decadal influences on the Siberian cold anomaly.
Article
Meteorology & Atmospheric Sciences
Zhen Fu, Pang-Chi Hsu, Juan Li, Jian Cao, Young-Min Yang, Fei Liu
Summary: This study has found the interdecadal connection between tropical Pacific MJO activity and North Atlantic sea surface temperature. The MJO activity tends to extend eastward to the central tropical Pacific during the negative phase of AMO, while being confined to the Indo-Pacific warm pool during the positive phase of AMO.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Binhe Luo, Dehai Luo, Aiguo Dai, Ian Simmonds, Lixin Wu
Summary: This paper explores the physical cause of the decadal variability of the warm Arctic-cold Eurasia (WACE) pattern observed in recent decades. The study finds that the phases of the Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO) mediate the decadal variability of the WACE pattern. The study also highlights the influence of PDO and AMO on the meridional structure of the WACE pattern, leading to different spatial distributions of warm and cold anomalies.
Letter
Geosciences, Multidisciplinary
Huanping Huang, William D. Collins, Christina M. Patricola, Yohan Ruprich-Robert, Paul A. Ullrich, Alexander J. Baker
Summary: This research examines the impact of Atlantic Multidecadal Variability (AMV) on global tropical cyclones (TCs) using idealized climate model simulations. The results show that TC frequency in the North Atlantic increases significantly under warmer sea surface temperature, higher humidity, increased vorticity, and weaker vertical wind shear conditions associated with AMV+. Conversely, TC occurrence decreases in the western North Pacific and South Pacific due to stronger wind shear and lower humidity associated with AMV+. The contrasting responses are attributed to the strengthened Walker Circulation between the Atlantic and Pacific.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Anran Zhuge, Benkui Tan
Summary: The ZNPO pattern is a newly identified teleconnection pattern that oscillates mass in the troposphere between the eastern and western North Pacific, affecting severe weather and hydroclimate events in North Pacific and North America during winter. It is primarily driven by baroclinic energy conversion and feedback forcing by transient eddies, acting as a major source of kinetic energy to maintain the pattern.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Shizuo Liu, Qigang Wu, Yonghong Yao, Steve Schroeder, Lei Wang
Summary: Previous empirical studies have shown that autumn and winter Tibetan Plateau snow cover anomalies have significant influences on winter Pacific-North American and East Atlantic teleconnection patterns. This study further investigates the impacts of these anomalies on North Atlantic-Europe and Arctic climate. Results indicate that the hydrological effect of Tibetan Plateau snow water equivalent differs from the albedo effect of snow cover extent in snow-atmosphere teleconnections. Numerical experiments using observed snow anomalies as forcing in a coupled atmosphere-ocean general circulation model simulate a winter negative NAO/WA response. These results demonstrate the widespread impacts of Tibetan Plateau snow anomalies on the Northern Hemisphere.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Geosciences, Multidisciplinary
Yi Liu, Ziguang Li, Xiaopei Lin, Jun-Chao Yang
Summary: The study suggests that under greenhouse warming, the connection between El Nino and the tropical North Atlantic will strengthen, leading to an increase in anomalous warming/cooling and related weather extremes in the future.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Christopher H. H. O'Reilly, Matthew Patterson, Jon Robson, Paul Arthur Monerie, Daniel Hodson, Yohan Ruprich-Robert
Summary: This study finds that experiments with active SST-restoring in the Tropical North Atlantic exaggerate the positive surface heat-fluxes out of the ocean with warm SST anomalies, which is not observed in other simulations. These upward surface heat-fluxes play a crucial role in generating a strong local precipitation response and the associated remote impact on the Pacific Walker circulation, but are absent in other simulations. The results of this study suggest that the influence of the Atlantic on global climate anomalies and its role in recent multidecadal SST trends are overestimated in experiments employing SST-restoring in the Tropical North Atlantic.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Meteorology & Atmospheric Sciences
Jin-Sil Hong, Sang-Wook Yeh, Young-Min Yang
Summary: The authors investigated the interbasin interactions between the Pacific and Atlantic Oceans based on the phase relationship of Pacific decadal oscillation (PDO)/Atlantic multidecadal oscillation (AMO). They found that the characteristics of the interactions depend on whether the PDO and AMO phases are in phase or out of phase.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Shuai-Lei Yao, Pao-Shin Chu, Renguang Wu, Fei Zheng
Summary: Modeling evidence suggests that the Inter-decadal Pacific Oscillation (IPO) can remotely affect the tropical Atlantic sea surface temperature (SST) variability. Using idealized pacemaker experiments, it is shown that a warm-phase IPO-SST anomaly drives a basin-wide SST warming over the tropical Atlantic. The connection between IPO and tropical Atlantic is established through the tropical tropospheric temperature mechanism and the atmospheric bridge teleconnections. The warming effects generated by the water vapor-longwave radiation-SST positive feedback contributes to the widespread warming in the tropical Atlantic.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Jiechun Deng, Aiguo Dai
Summary: The study shows that sea ice-air interactions are crucial for multidecadal climate variability in both the Arctic and North Atlantic. By amplifying multidecadal variations in sea-ice cover, sea surface temperatures, and surface air temperature, sea ice-air interactions mainly affect the Atlantic Meridional Overturning Circulation through changes in surface fluxes.
NATURE COMMUNICATIONS
(2022)
Article
Meteorology & Atmospheric Sciences
Dong Si, Dabang Jiang, Aixue Hu, Xianmei Lang
Summary: By analyzing a 113-year observational dataset, this study found that the interdecadal fluctuation of summer precipitation in Northeast Asia is influenced by the North Atlantic sea surface temperature, known as the Atlantic Multidecadal Oscillation (AMO). Model simulations confirmed that the multidecadal variability in the North Atlantic can cause observed interdecadal variations in Northeast Asia summer precipitation.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Yue Sun, Jianping Li, Hao Wang, Ruize Li, Xinxin Tang
Summary: The September rainfall over Northern China in 2021 was the heaviest since 1961 and had unprecedented socioeconomic impacts. The study found that the warm sea surface temperature anomalies over the tropical Atlantic, cold sea surface temperature anomalies over the tropical Pacific, Southern Annular Mode-like pattern in the Southern Hemisphere, and North Pacific Oscillation-like pattern in the Northern Hemisphere jointly strengthened the Indian monsoon and led to this rainfall event. Additionally, the extreme air acceleration in the east Asian upper-level jet entrance region played a crucial role.
Article
Meteorology & Atmospheric Sciences
Bolan Gan, Tianyu Wang, Lixin Wu, Jianping Li, Bo Qiu, Haiyuan Yang, Li Zhang
Summary: Through the study of short-term climate variations on a decadal scale, we found that the Kuroshio Extension system undergoes periodic changes between stable and unstable states. This variation is caused by a coupled ocean-atmosphere delayed oscillator, with the winter oceanic surface conditions and slow oceanic Rossby wave adjustment playing a key role.
JOURNAL OF CLIMATE
(2023)
Article
Materials Science, Biomaterials
Chenchen Zhao, Jianping Li, Huihua Cai, Dingwei Wu, Suwan Tao, Chaoran Pi, Lian Zhu, Na Xu, Tongcun Zhang
Summary: Chronic endometritis is a common gynecological disease caused by recurrent infections, and it is closely related to myositis, miscarriage, and infertility. Current clinical therapy lacks satisfactory treatment methods. Mesenchymal stem cell (MSC)-derived exosomes, which have promising immunomodulatory and tissue repair abilities, have been used to treat inflammatory diseases. This study proposes that exosomes derived from inflammation-stimulated MSCs have stronger inhibition ability for inflammation.
BIOMATERIALS SCIENCE
(2023)
Article
Environmental Sciences
Xuanliang Ji, Juan Feng, Jianping Li, Xingrong Chen
Summary: This study investigates the modulation of Indo-Pacific warm pool (IPWP) thermal conditions on the relationships between the Hadley circulation (HC) and different tropical sea surface temperature (SST) meridional structures. The study finds that the relationship between HC and tropical SST is suppressed in cold IPWP conditions, while it is equivalent to the climatology in warm IPWP conditions. This suppression is attributed to the association between the La Nina decay phase and significant equatorially asymmetric SST anomalies within the IPWP.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Agronomy
Yu Ru, Chenming Hu, Xuyang Chen, Fengbo Yang, Chao Zhang, Jianping Li, Shuping Fang
Summary: The study examines the interaction between the canopy of fruit trees, the airflow field, and the droplet penetration ratio using a mobile LIDAR system and wind tunnel experiments. The results show that wind velocity decreases during canopy penetration, with the lowest value at the back of the canopy. A quadratic exponential regression model is found to be the most accurate in predicting the droplet penetration ratio. This research provides valuable information for optimizing spraying parameters and improving pesticide utilization.
Article
Meteorology & Atmospheric Sciences
Jing Cao, Jianping Li, Yanjie Li
Summary: This paper investigates truncation and round-off errors in the numerical solution of the 1D advection equation using the Lax-Friedrichs scheme, and their accumulation in high temporal layers. The authors derive a new theoretical approximation formula for the upper bound of the total error, as well as theoretical formulas for the optimal grid size and time step. The reliability of the formulas is demonstrated through numerical experiments. Furthermore, the paper explores the relationship between the optimal time steps under different machine precisions and presents theoretical verification of the computational uncertainty principle under a fixed grid ratio.
ATMOSPHERIC AND OCEANIC SCIENCE LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Xuan Li, Ruiqiang Ding, Jianping Li
Summary: In this study, the local predictability of summer heatwave events in south China was investigated using the BNLLE method. The results showed the high predictability of summer temperature and the wide range of local predictability limits for major heatwave events. The error dynamics and regional dynamical information revealed the heterogeneous spatial distribution of error growth and limitations in heatwave forecasting in the northern regions of south China.
Article
Meteorology & Atmospheric Sciences
Hao Wang, Jianping Li, Fei Zheng, Fei Li
Summary: This study investigates the synergistic effect of the summer positive North Atlantic Oscillation (pNAO) and positive northwest Pacific (pNWP) sea surface temperature anomaly (SSTA) on the interannual variability of extreme heat events in central-eastern China (CEC). The results show that the two factors act synergistically in strengthening extreme heat events in the CEC through a series of atmospheric bridges. The pNWP SSTA increases the strength of pNAO, leading to a stronger eastward propagation of Rossby waves and an anomalous anticyclone over the CEC, resulting in extreme heat events.
Article
Meteorology & Atmospheric Sciences
Yazhou Zhang, Jianping Li, Yina Diao, Zhaolu Hou, Ting Liu, Bin Zuo
Summary: This study explores the role of perturbation potential energy (PPE) in the energetic connection between the South China Sea summer monsoon (SCSSM) and Indian Ocean dipole (IOD). Strong SCSSM leads to positive/negative energy conversion and corresponding ascending/descending motions over the western North Pacific (WNP) and southern Maritime Continent (SMC), which indicates the existence of regional Hadley circulation. This circulation-induced wind anomalies reduce the local sea surface temperature over the tropical southeastern Indian Ocean, thus influencing the development of the IOD.
Article
Geosciences, Multidisciplinary
Juan Feng, Xuanliang Ji, Jianping Li, Enye He
Summary: The impact of El Nino on the Hadley Circulation (HC) has been a topic of previous studies, but the results have been inconclusive. This study investigates how El Nino affects the HC during different stages of its cycle, resolving previous discrepancies among studies. The differences in tropical sea surface temperature (SST) during different stages of El Nino cause differences in SST meridional gradients, which determine the location of convergence and thus explain the different spatial structures of HC anomalies during El Nino development and decay years.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Jie-Hong Han, Jianping Li
Summary: A new inter-basin teleconnection analysis method is proposed to investigate the connection among global oceans comprehensively. The Australia Boundary Current Dipole (ABCD) is discovered, which shows a strong negative correlation between sea surface temperature (SST) along Leeuwin Current (LC) and East Australia Current (EAC). This new inter-basin air-sea coupled mode exhibits remarkable interannual variability. The anomalies in SST are mainly generated by anomalous Australia High inducing opposite surface winds along the coast, which in turn reinforce the wind anomalies by affecting the overlying atmosphere and regional pressure anomalies. The meridional ocean advections control the anomalous SST, indicating the essential role of coastal Bjerknes feedback. The kinetic energy analysis further demonstrates that ABCD represents the reverse variation pattern of LC and EAC.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Deyu Lu, Ruiqiang Ding, Quanjia Zhong, Jiangyu Mao, Qian Zou, Jianping Li
Summary: In this paper, a rapid intensification warning index (RIWI) based on the analog method is developed using information from the early period following TC formation. The potential application of RIWI is verified through a 10-year cross-validation and data from Hurricane Ida (2021). Results show that RIWI can efficiently discriminate between RI and non-RI storms and has a significant positive correlation with the lifetime maximum intensity (LMI) of the TCs. By using this index, an early warning can be issued similar to 30 hr before the onset of RI, which is much earlier than the predictions made using the probabilistic Statistical Hurricane Intensity Prediction System RI index. In addition, by using the RIWI as a predictor, the prediction of LMI provides an early estimate of TC severity.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Yingying Zhao, Yishuai Jin, Antonietta Capotondi, Jianping Li, Daoxun Sun
Summary: This study investigates the impacts of tropical Atlantic on El Nino-Southern Oscillation (ENSO) predictability using a Linear Inverse Model (LIM). The inclusion of tropical Atlantic dynamics in LIM significantly improves the prediction of Eastern Pacific (EP)-ENSO and weakens the EP-ENSO predictability barrier (PB), with the Equatorial Atlantic (EA) mode playing a more important role. The tropical Atlantic has a relatively smaller impact on the prediction of Central Pacific (CP)-ENSO and PB.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Xinxin Tang, Jianping LI, Yazhou Zhang, Yanjie LI, Ssen Zhao
Summary: This study reveals that the increase in winter precipitation over the southeastern United States (SEUS) is linked to El Nin similar to o and the negative phase of North Atlantic Oscillation (NAO2). The synergy between El Nin similar to o and NAO2 leads to the enhancement of transient eddies and stationary waves, promoting the propagation of stronger stationary waves from the Pacific to SEUS and North Atlantic. This results in a positive phase of the meridional dipole and induces precipitation in the SEUS.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Hao Wang, Ziguang Li, Jianping Li, Xiaopei Lin, Xiao-Tong Zheng, Lei Fan, Yu Zhang
Summary: The variability of tropical Atlantic sea surface temperature (SST) can impact the East Asian summer monsoon (EASM). The interannual EASM-TA relationship exhibits interdecadal variation modulated by the Interdecadal Pacific Oscillation (IPO). Understanding the IPO-modulated EASM-TA relationship helps better forecast EASM variability.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
