Article
Meteorology & Atmospheric Sciences
Haibo Hu, Yihang Zhao, Ning Zhang, Haokun Bai, Feifei Chen
Summary: In the North Pacific subtropical front zone, a stronger subtropical front leads to more cyclonic and anticyclonic isolated and double eddies to the north and south of the STFZ respectively, and more eddy pairs with cold to the north and warm to the south concentrated around the main axis of the STFZ. These eddy distributions enhance the strength of the subtropical front, intensify the propagation of upwards baroclinic waves in the lower atmosphere, and finally enhance the zonal wind at upper atmosphere, which is defined as the remote effects of the eddies. However, distinct from this basin-scale remote forcings, three types of oceanic eddies also have different local forcings on the marine atmospheric boundary layer (MABL) above and on the middle atmosphere.
Review
Meteorology & Atmospheric Sciences
Guidi Zhou, Xuhua Cheng
Summary: This paper reviews the progress in understanding the atmospheric response to midlatitude oceanic fronts and eddies, with a focus on the Kuroshio-Oyashio Extension (KOE) region. Oceanic fronts play a significant role in maintaining the storm track, but current research is still subject to uncertainties arising from inadequate data resolution.
ADVANCES IN ATMOSPHERIC SCIENCES
(2022)
Article
Oceanography
Guidi Zhou, Xuhua Cheng
Summary: This paper evaluates the importance of residual kinetic energy (RKE) in ocean energetics, proposing methods for its assessment and handling, including Reynolds decomposition and spectral truncation. Through practical ocean observations, variations in MREE under different conditions were identified, highlighting the necessity of estimating MREE before analyzing energy budgets.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Environmental Sciences
Mingyue Liu, Ru Chen, Wenting Guan, Hong Zhang, Tian Jing
Summary: This study aims to estimate and predict the nonlocality of scale-dependent eddy mixing in the Kuroshio Extension region. It found that the nonlocality of mixing is prevalent and becomes more significant with higher resolution. The random forest approach is better at representing the nonlocality of scale-dependent mixing.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Oceanography
Yang Ding, Lixiao Xu, Yang Zhang
Summary: Storms can cause a sharp deepening of the mixed layer inside anticyclonic eddies (AEs) located south of the Kuroshio Extension, with important implications for understanding mixed layer changes and mode water formation within AEs.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Environmental Sciences
Wei Cui, Jungang Yang, Yongjun Jia, Jie Zhang
Summary: Vigorous mesoscale eddies, identified from sea surface height and sea surface temperature, are widely distributed in the Kuroshio Extension. The correlation between sea surface temperature anomaly (SSTA) and sea surface height anomaly (SSHA) inside eddies is higher in winter than in summer. The lifetime and propagation distance of SSTA-based eddies are shorter and smaller than those of SSHA-based eddies. SSHA-based eddies are primarily found in the Kuroshio mainstream, while SSTA-based eddies are concentrated in the Oyashio Extension, where SST gradient is large and changes in SST fields caused by eddies are more obvious.
Article
Meteorology & Atmospheric Sciences
Z. E. Gillett, H. H. Hendon, J. M. Arblaster, E-P Lim
Summary: The study assesses the interannual variability of the Southern Hemisphere subtropical jet (STJ) using atmospheric reanalyses from 1979 to 2018. It finds that variations in STJ intensity and position are tied to different mechanisms, with intensification linked to divergent outflow from diabatic heating over the equatorial Pacific and equatorward shifts associated with eddy-driven processes projecting onto the southern annular mode. El Nino Modoki is also shown to influence the poleward displacement of the STJ during austral winter.
JOURNAL OF CLIMATE
(2021)
Article
Meteorology & Atmospheric Sciences
Lingfeng Tao, Xuguang Sun, Xiu-Qun Yang, Jiabei Fang, Zhi-Qi Zhang
Summary: Previous studies have shown that random atmospheric forcing can influence oceanic low-frequency variability in midlatitudes. However, it is still unclear whether the oceanic stochastic forcing can in turn affect atmospheric variability. To answer this question, two parallel numerical experiments are conducted with an atmospheric general circulation model. The results show that the oceanic stochastic forcing can greatly increase large-scale atmospheric variability and improve the simulation of atmospheric circulations associated with the Pacific Decadal Oscillation (PDO).
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Geosciences, Multidisciplinary
Chaohui Chen, Jianqi Zhang, Xiangguo Chen
Summary: This study investigates the response of North Pacific storm tracks to spatial multiscale sea surface temperature anomalies in the stable state of the Kuroshio Extension system. The results show that the storm tracks are significantly strengthened and cause increased rainfall in certain areas in response to large-scale temperature anomalies, while they shift to the north and strengthen in other areas in response to mesoscale temperature anomalies, with remote impact on precipitation along the west coast of North America.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
Zhiying Cai, Haiming Xu, Jing Ma, Jiechun Deng
Summary: The study shows that mesoscale oceanic eddies in the North Pacific can impact the climate by strengthening upper-level ridges, weakening storm tracks, and altering wind patterns. The effects of OEs in the northern and southern NPac are more prominent, with specific impacts on tropospheric responses and atmospheric circulation. Doubling the intensities of OEs in the model leads to more robust and significant atmospheric responses, indicating the potential for better forecasting and projections of extratropical storm systems and their responses to climate change.
Article
Oceanography
Qi Li, Zhaohui Chen, Shoude Guan, Haiyuan Yang, Zhao Jing, Yongzheng Liu, Bingrong Sun, Lixin Wu
Summary: We provide observational evidence for the enhanced downward propagation of near-inertial waves by mesoscale eddies. This has significant implications for turbulent mixing in the ocean and its impact on ocean circulation and climate.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2022)
Article
Meteorology & Atmospheric Sciences
Peilong Yu, Minghao Yang, Chao Zhang, Yi Li, Lifeng Zhang, Shiyao Chen
Summary: In this paper, the authors used a statistical method called Generalized Equilibrium Feedback Analysis (GEFA) to study the responses of the North Pacific Storm Track (NPST) to multi-scale oceanic variations of the Kuroshio Extension (KE) system in the cold season. Results showed that large-scale variation and front meridional shift of the KE system had significant impacts on the storm track activity, while mesoscale eddy activity had relatively shallow effects. Baroclinicity and baroclinic energy conversion were found to be important factors in the formation of the NPST response to the KE multi-scale oceanic variations.
ADVANCES IN ATMOSPHERIC SCIENCES
(2023)
Article
Geochemistry & Geophysics
Xue-Qing Xu, Yong-Hong Zhou, Peng-Shuo Duan, Ming Fang, Zhao-Yang Kong, Can-Can Xu, Xian-Ran An
Summary: The study reprocesses and compares the interannual variations of atmospheric angular momentum (AAM) and length-of-day changes (Delta LOD) with El Nino-Southern Oscillation (ENSO) indices. It finds that the AAM motion term over the ocean contributes the most to interannual Delta LOD and that oceanic AAM has larger variability than that over land, especially during strong ENSO events. The study also reveals that after subtracting contributions associated with interior processes, the interannual Delta LOD anomalies corresponding to extreme ENSO events are about half as strong as those found in previous studies.
JOURNAL OF GEODESY
(2022)
Article
Water Resources
Minh Tuan Bui, Jinmei Lu, Linmei Nie
Summary: The study compares the quality of CFSR data with ground-based data for hydrological modeling in the Arctic watershed Malselv. The results indicate that the high-resolution CFSR data perform better, accurately simulating precipitation in the watershed and replicating the streamflow hydrograph.
JOURNAL OF WATER AND CLIMATE CHANGE
(2021)
Article
Environmental Sciences
Jianxiang Sun, Suping Zhang, Yuxi Jiang, Yanshuo Wang, Baoqin Wu, Haijiao Wang
Summary: This study investigates the responses of the East Asian Trough to the Kuroshio Extension interannual fluctuation and identifies the underlying mechanisms. The observations show that the stable state of the Kuroshio Extension corresponds to a deeper East Asian Trough, accompanied by a stronger winter monsoon. Atmospheric Rossby waves, transient eddies, and thermal winds are found to be responsible for this relationship.
Article
Meteorology & Atmospheric Sciences
Hailong Liu, Pengfei Lin, Weipeng Zheng, Yihua Luan, Jinfeng Ma, Mengrong Ding, Huier Mo, Liying Wan, Tiejun Ling
Summary: This article introduces a global eddy-resolving forecast system LFS based on a primitive ocean general circulation model, and shows its configuration, forecast experiments, and preliminary evaluation. In short-term oceanographic forecasting, LFS demonstrates good performance overall, except for sea level anomaly, and further investigations are needed to improve its accuracy.
JOURNAL OF OPERATIONAL OCEANOGRAPHY
(2023)
Article
Meteorology & Atmospheric Sciences
Hai Zhi, Zihui Yang, Rong-Hua Zhang, Pengfei Lin, Jifeng Qi, Yu Huang, Meng Dong
Summary: Model simulations from 1900 to 2017 reveal asymmetric salinity variability in the tropical Pacific during positive and negative Interdecadal Pacific Oscillation (IPO) phases. Positive IPO phases exhibit larger salinity variability with a westward shift of Sea Surface Salinity (SSS) anomaly along the equator. Surface forcing associated with freshwater flux is the dominant factor contributing to the asymmetry of salinity variability during IPO phases. These differences in salinity variability have an impact on seawater density and can modulate the intensity of El Nino-Southern Oscillation (ENSO).
ADVANCES IN ATMOSPHERIC SCIENCES
(2023)
Article
Meteorology & Atmospheric Sciences
Bo An, Yongqiang Yu, Helene Hewitt, Peili Wu, Kalli Furtado, Hailong Liu, Pengfei Lin, Yihua Luan, Kangjun Chen
Summary: This study evaluates the benefits of high-resolution models in simulating the Kuroshio Extension (KE) and its warming trend, and finds that high-resolution models improve the simulated KE intensity and enhanced warming trend. The results highlight the importance of KE changes on the North Pacific storm track.
Article
Geosciences, Multidisciplinary
Xing Gao, Yuanlong Li, Pengfei Lin, Lei Zhang, Qiuping Ren, Ying Lu, Fan Wang
Summary: This study detects multidecadal sea surface temperature covariance in the southern Atlantic and Indian Oceans. The decade-long warming surge during 1965-1975 and the stalled warming pace thereafter are mainly influenced by external forcing. The recovery of radiative heating after the Mount Agung eruption and the positive trend of the Southern Annular Mode are key factors in controlling the warming rates of the SAIO.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Huiqun Hao, Jinrong Jiang, Tianyi Wang, Hailong Liu, Pengfei Lin, Ziyang Zhang, Beifang Niu
Summary: This paper proposes a series of parallel optimizations on a high-resolution ocean model, achieving significant improvement in performance. The optimized model showed excellent performance in large-scale parallelization, achieving a speedup of more than two times compared with the original code. Additionally, the problem of jumpy wall time during the time integration process was tackled successfully.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Lu-Sha Yu, Hailun He, Hengling Leng, Hailong Liu, Pengfei Lin
Summary: This study investigates the interannual variability of January sea surface temperature (SST) in the Amundsen Sea during the period 1982-2022. The research finds that SST in the Pine Island Bay exhibits the most significant interannual variation, with a standard deviation up to 0.6 degrees. The study identifies the possible mechanism of anomalous January SST in the Pine Island Bay, which could provide an important clue for seasonal forecasts of summer SST in the Amundsen Sea.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Weipeng Zheng, Pengfei Lin, Hailong Liu, Yihua Luan, Jinfeng Ma, Huier Mo, Juan Liu
Summary: This paper evaluates the performance of LFS (LICOM Forecast System) forecasts in comparison with other marine forecast systems. LFS provides real-time daily forecasts driven by atmospheric analyses and surface forecasts. The results show that LFS demonstrates reasonably good capabilities in short-term marine environment forecast, with comparable performance to other major marine forecast systems. However, further improvements are needed, such as the integration of an assimilation system and consideration of additional observational constraints.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Engineering, Marine
Yiwen Li, Juan Liu, Pengfei Lin, Hailong Liu, Zipeng Yu, Weipeng Zheng, Jinlei Chen
Summary: This study assesses the forecasting ability of the LICOM Forecast System (LFS), a global eddy-resolving ocean forecast system, for marine heatwaves (MHWs) in October 2021 around China. The LFS accurately predicts up to 79% of observed MHWs, with the highest skill during initial and decay periods. The forecasted duration and intensity of the MHW event align with observations, but with some deviations in specific regions.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Junpeng Xie, Dewu Lin, Hang Lei, Shuilin Wu, Jinliang Li, Wenjie Mai, Pengfei Wang, Guo Hong, Wenjun Zhang
Summary: This review summarizes the electrolyte and interphase engineering of aqueous batteries to overcome the drawbacks of the water-in-salt strategy and improve the performance of aqueous batteries. The state-of-the-art developments of electrolytes, electrode-electrolyte interphases, and electrodes are discussed, along with the challenges and prospects for electrolyte and interphase engineering beyond the water-in-salt strategy.
ADVANCED MATERIALS
(2023)
Article
Meteorology & Atmospheric Sciences
Shuai Hu, Bo Wu, Yiming Wang, Tianjun Zhou, Yongqiang Yu, Bian He, Pengfei Lin, Qing Bao, Hailong Liu, Kangjun Chen, Shuwen Zhao
Summary: This paper describes the outputs of the Chinese Academy of Sciences (CAS) Flexible Global Ocean-Atmosphere-Land System (FGOALS-f3-L) model for the decadal climate prediction project (DCPP) of the Coupled Model Intercomparison Project Phase 6 (CMIP6). The FGOALS-f3-L model was initialized using a weakly coupled data assimilation scheme, assimilating observational anomalies of sea surface temperature and upper-level ocean temperature and salinity profiles. Nine ensemble members of 10-year hindcast/forecast experiments were conducted for each initial year, showing significant predictive skill for interannual and multi-year variations of SST in specific regions.
ADVANCES IN ATMOSPHERIC SCIENCES
(2023)
Article
Automation & Control Systems
Xuanying Zhang, Yuzhu Wang, Lianjing Wei, Jinrong Jiang, Pengfei Lin, Hailong Liu
Summary: El Nino/Southern Oscillation (ENSO) is a complex event that affects the equatorial Pacific Ocean, causing abnormal Sea Surface Temperature (SST) changes. Accurate long-term ENSO predictions are crucial for global climate extremes and ecosystem stability. We have developed innovative methods, including transfer learning with simulated data, a new encoder-decoder structure with spatiotemporal memory cells, and mixed-precision computing to improve the accuracy and efficiency of ENSO forecasting. Our model outperforms existing statistical models and demonstrates precise predictions for El Nino, La Nina, and neutral ENSO conditions.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
Article
Immunology
Hongyu Wang, Quanlin Xue, Haocheng Zhang, Guanmin Yuan, Xun Wang, Kai Sheng, Chen Li, Jianpeng Cai, Yuhan Sun, Jingjing Zhao, Jiahuan Lu, Shuyu Fang, Yongfeng Yang, Yeting Zhang, Ying Huang, Jiancui Wang, Jonathan H. Xu, Melissa X. Jiang, Xinyu Wang, Lei Shen, Yuanyuan Liu, Qihui Liu, Qiran Zhang, Sen Wang, Pengfei Wang, Chao Qiu, Jingwen Ai, Wenhong Zhang
Summary: This study evaluated the humoral immune response post BA.5/BF.7 breakthrough infection and found that the infection induced higher neutralization activity compared to solely vaccination. The latest Omicron subvariants, BQ.1.1, CH.1.1, XBB.1.5, exhibited the strongest neutralization evasion ability. Age was negatively correlated with humoral immune response against WT, BA.5, BQ.1.1, and XBB.1.5.
EMERGING MICROBES & INFECTIONS
(2023)
Article
Meteorology & Atmospheric Sciences
Yue Chen, Xiaomeng Huang, Jing-Jia Luo, Yanluan Lin, Jonathon S. Wright, Youyu Lu, Xingrong Chen, Hua Jiang, Pengfei Lin
Summary: A novel multivariable prediction system based on a deep learning algorithm is developed to improve the prediction of El Nino-Southern Oscillation (ENSO) using residual neural network and pure observations. The optimal predictors are automatically determined using spatial filtering and the Taylor diagram criteria, resulting in better prediction skills compared to most operational prediction models. The DL model shows significantly higher correlation skill and lower root-mean-square error compared to the average multi-model performance, effectively alleviating the spring predictability barrier problem and explaining the typical ENSO evolution driven by both tropical dynamics and extratropical impacts.
ATMOSPHERIC AND OCEANIC SCIENCE LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Jiaying Gao, Fenggang Liu, Lixin Liu, Fencheng Liu, Qifan You, Yongsheng Zheng, Pengfei Wang, Hao Qiu
Summary: In this study, GH3536 and TiB2/GH3536 alloys were prepared using laser solid forming (LSF) technique, and the effects of TiB2 content on the microstructure and mechanical properties of the deposited samples were investigated. The results showed that increasing TiB2 content led to changes in the microstructure, phase segregation, grain size, hardness, and tensile properties of the samples.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Mengting Liu, Bin Wu, Duo Si, Haojie Dong, Kai Chen, Lu Zheng, Xin-Yu Fan, Lianzheng Yu, Bing Xiao, Shulei Chou, Yao Xiao, Peng-Fei Wang
Summary: By substituting Mg2+ for Na0.67Ni0.33Mn0.67O2 and forming hollow rodlike structures, the structure stability and sodium ion diffusion dynamics of P2-type NaxTMO2 can be improved, leading to enhanced rate capability and cycling stability for sodium-ion storage.
ACS APPLIED MATERIALS & INTERFACES
(2023)
