A5102022549- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Climate variability and models
- Geology and Paleoclimatology Research
- Vehicle emissions and performance
- Arctic and Antarctic ice dynamics
- Air Quality Monitoring and Forecasting
- Tropical and Extratropical Cyclones Research
- Aeolian processes and effects
- Oceanographic and Atmospheric Processes
- Ionosphere and magnetosphere dynamics
- Geological formations and processes
- Cryospheric studies and observations
- Supramolecular Self-Assembly in Materials
- Tree-ring climate responses
- Pleistocene-Era Hominins and Archaeology
- Hydrology and Drought Analysis
- Precipitation Measurement and Analysis
- Isotope Analysis in Ecology
- Environmental Policies and Emissions
- Surface Modification and Superhydrophobicity
- Handwritten Text Recognition Techniques
Jiangsu Institute of Meteorological Sciences
2023-2025
China Meteorological Administration
2020-2024
Nanjing University of Information Science and Technology
2019-2024
Hubei University of Technology
2024
Lanzhou University
2021-2023
Collaborative Innovation Center of Chemistry for Energy Materials
2022
University of Science and Technology of China
2022
Institute of Geographic Sciences and Natural Resources Research
2021
Chinese Academy of Sciences
2021
Nankai University
2019-2020
Abstract Extreme precipitation events over the North China Plain (NCP) in midsummer during 1979–2016 are classified into two types using objective cluster analysis: a northern pattern with heavy and central–southern relatively moderate precipitation. The large‐scale circulation patterns responsible for extreme then determined. In NCP type, accompanies zonal gradient between an anomalous low‐pressure system at high latitudes westward‐ northward‐extended western Pacific subtropical (WNPSH)....
Abstract. As an important issue in atmospheric environment, the contributions of anthropogenic emissions and meteorological conditions to air pollution have been little assessed over receptor regions regional transport pollutants. In present study 5-year observations modeling, we targeted Twain-Hu Basin (THB), a large region heavy PM2.5 central China, assess effects meteorology on change Based environment 2015–2019, Kolmogorov–Zurbenko (KZ) filter was performed decompose variations into...
Abstract Traditional statistical methods (TSM) and machine learning (ML) have been widely used to separate the effects of emissions meteorology on air pollutant concentrations, while their performance compared chemistry transport model has less fully investigated. Using Community Multiscale Air Quality Model (CMAQ) as a reference, series experiments was conducted comprehensively investigate TSM (e.g., multiple linear regression Kolmogorov–Zurbenko filter) ML random forest extreme gradient...
We collected ambient PM10 and PM2.5 samples from six sites in Tian'jin, China, February to March 2016 then analyzed their chemical compositions identified the emission sources using positive matrix factorization model. The mean concentrations of were 98 71 µg m–3, respectively, with a PM2.5/PM10 ratio 0.67. average combined SO42–, NO3–, NH4+ 19.9–23.4 accounting for 72.4–77.1% total measured ions. percentages significantly higher NO3– OC than other species. SO42–/NO3– showed decreasing...
Fine particulate matters (PM2.5) and relative humidity (RH) in the ambient atmosphere are leading anthropogenic natural factors changing atmospheric horizontal visibility. Based on analysis of environmental meteorological data observed over 2013–2019 Nanjing, an urban area East China, this study investigated influences PM2.5 RH visibility changes recent years. The had significantly negative correlations with concentrations changes. nonlinear relationships existed between visibility, as well...
The chemical composition dataset of Aerosol Reanalysis NASA’s Modern-Era Retrospective Analysis for Research and Application, version 2 (MERRAero) has not been thoroughly evaluated with observation data in mainland China due to the lack long-term components data. Using 5-year PM10 mass concentrations compositions obtained from routine sampling measurements at World Meteorological Organization Global Atmosphere Watch Programme regional background stations, Jing Sha (JS) Lin’An (LA), central...
Abstract. Stratosphere-to-troposphere transport (STT) is an essential natural source of tropospheric ozone. Focusing on the STT variations in late spring and early summer with frequent ozone over Asian region, this study investigated Tibetan Plateau (TP) thermal effect interannual meteorological data 1980–2014. The distinct structures anomalies key areas TP forcing are identified through 35-year climatological statistics. Positive central eastern exert opposing impacts increasing decreasing...
The Twain-Hu basin (THB), covering the lower plain of Hubei and Hunan provinces in Central China, has experienced severe air pollution recent years. However, terrain effects such sub-basin on quality over THB have been incomprehensibly understood. A heavy PM2.5 event occurred during 4–10 January 2019. By using observations WRF-Chem simulations, we investigated underlying mechanisms with several sensitivity experiments. Observationally, western urban area an average concentration 189.8 μg...
Vertical wind shear (VWS) significantly impacts the vertical mixing of air pollutants and leads to changes in near-surface pollutants. We focused on Changsha (CS) Jingmen (JM), upstream downstream urban sites a receptor region central China, explore impact VWS surface PM2.5 using 5-year wintertime observations simulations from 2016–2020. The concentration was lower CS with higher anthropogenic emissions than JM, correlation between speed negative for clean conditions positive polluted both...
Abstract Given our poor understanding on mechanisms of stratospheric intrusions (SI) upon near‐surface ozone (O 3 ) surges, predicting the SI‐induced O pollution pose inherent difficulties. Taking a wintertime surge episode over Sichuan Basin (SCB) as an example, we find SI contribute 47.8% to levels and reveal underlying mechanisms. Tropopause folding nearly extends deep atmospheric boundary layer Tibetan Plateau (TP) due topographic forcing, driving penetration into TP's near‐surface. The...
Abstract Regional transport of air pollutants is modulated by large‐scale synoptic circulation, which has been poorly understood for heavy pollution in the downstream receptor region. In present study 5‐year (2015–2019) observation, we targeted Twain‐Hu Basin (THB), a region PM 2.5 over central China, to investigate regulation circulation governing regional pollution. It was found that predominated 65.2% events (HPEs) THB based on statistics observational environment and meteorology. By...