A5058671191- Lightning and Electromagnetic Phenomena
- Fire effects on ecosystems
- Meteorological Phenomena and Simulations
- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Advanced Decision-Making Techniques
- Evaluation Methods in Various Fields
- Remote Sensing and Land Use
- Precipitation Measurement and Analysis
- Air Quality and Health Impacts
- Climate variability and models
- Environmental Changes in China
- Air Quality Monitoring and Forecasting
- Mobile Crowdsensing and Crowdsourcing
- Transportation and Mobility Innovations
- Plant responses to elevated CO2
- Sharing Economy and Platforms
- Simulation and Modeling Applications
- Plant responses to water stress
- High voltage insulation and dielectric phenomena
- Cryospheric studies and observations
- Innovative Educational Techniques
- Plant Water Relations and Carbon Dynamics
- Leaf Properties and Growth Measurement
- Tree Root and Stability Studies
Chengdu University of Information Technology
2012-2024
Soochow University
2023-2024
Nanjing University of Information Science and Technology
2016-2023
Zhejiang University
2023
Weifang University
2021
Chinese Academy of Meteorological Sciences
2011-2012
Chinese Academy of Sciences
1998-2011
Institute of Atmospheric Physics
2011
Abstract. The joint effects of aerosol, thermodynamic, and cloud-related factors on cloud-to-ground lightning in Sichuan were investigated by a comprehensive analysis ground-based measurements made from 2005 to 2017 combination with reanalysis data. Data include aerosol optical depth, (CG) density, convective available potential energy (CAPE), mid-level relative humidity, lower- mid-tropospheric vertical wind shear, cloud-base height, total column liquid water (TCLW), ice (TCIW). Results...
Abstract The basic characteristics of cloud water, precipitation, and the dependence precipitation efficiency (PE) on influencing factors over Tibetan Plateau (TP) are investigated. Results found that liquid water path shows a significant downward trend in winter TP, ice upward pre‐monsoon seasons monsoon season western TP from 1998 to 2015. In eastern also trend, which may be related weakening South Asian monsoon. have determined depends more than TP. Moreover, convective available...
Abstract The relationship between precipitation and cloud properties in Southwest China are investigated by using the CLARA‐A2 parameters data TRMM‐3B43 from 1998 to 2015. Ice water path (IWP) top height (CTH) significantly positively correlated with all regions, indicating that ice‐phase processes development critical influencing precipitation. Precipitation is also directly associated fractional coverage (CFC) due significant positive correlation CFC regions except Sichuan Basin (SCB). A...
Abstract The effect of aerosol on liquid cloud microphysical properties over the Tibetan Plateau (TP) during warm season is investigated by using index (AI) and property parameters data. Distinct differences in have been found between northern (NTP) southernTibetan (STP). composite droplet effective radius (LREF) anomalies for positive AI events are NTP negative STP. In both STP, when positive, LREF also which suggests that increased loading reduces solar radiation reaching ground thus...
Abstract Lightning matters to human life and natural fires so much that monitoring predicting lightning are highly important. A simple proxy for climatic cloud‐to‐ground (CG) density is evaluated defined as the product of convective available potential energy (CAPE) precipitation rate using data from 2005 2017 in Sichuan Southwest China. CAPE times (CP) relates monthly distribution magnitude negative basin region more closely, while CP describes positive plateau appropriately. Except...
Characteristics of induced voltage in a horizontal conductor due to natural lightning with 9 dart leader/return stroke sequence were analyzed. Effect various parameters on the was examined by numerical simulation. The varied from minimum 4.6 kV maximum 18.6 geometric mean 11.2 kV. half-peak width and down time 0.87 2.9 μs, respectively. simulated results showed that both ends would increase increasing return velocity also height conductor. matched grounding impedances but relationship...
Abstract Global flash activity shows great contrast in different regions. Temperature and humidity are the essential meteorological factors that result this difference. The regional response of lightning activities to relative ( R H ) is examined at longitudes latitudes using data based on satellite NCEP metrological observations (from 1995 2002). indicates respond positively within longitudinal belts where more than 74% negatively for region less 72%. A similar found latitudinal belts. It...
This study discussed the influence of aerosols on relative frequency positive cloud-to-ground (CG) lightning and its dependence thermodynamic cloud-related factors in Sichuan during warm season from 2005 to 2017. The CG is defined as proportion flashes total flashes. Although density Western Plateau significantly lower than that Basin, higher basin. Convective available potential energy (CAPE) vertical wind shear low-to-mid level troposphere (SHEAR-5 km) are controlling frequency. A small...
Abstract Lightning activity changes greatly on temporal and spatial scales. The data from Imaging Sensor, boarded the Tropical Rainfall Measurement Mission (TRMM) Satellite, are used to study lightning activities in several typical regions of world. It is found that great differences exist different for flash frequency intensity. oceans tens hundred times smaller than continents. number difference caused by not only days but also an individual thunderstorm a region. discharge intensity shows...
Twelve years of measurements aerosol optical depth (AOD), cloud fraction, top height, ice thickness and lightning flash density from 2001 to 2012 have been analyzed investigate the effect aerosols on electrical activity over an area China. The results show that increasing loading inspires convective intensity, then increases density. spatial distribution correlation between shows a remarkable regional difference high-correlation regions embody positive microphysical intensity activity, while...
The effects of thermodynamic and moisture factors on cloud-to-ground (CG) lightning polarity in the warm season were discussed. Small convective available potential energy (CAPE) represents relatively shallow convection, which is beneficial to generation positive lightning. Large vertical wind shear results displacement upper-level ice crystals promotes initiation +CG from crystals. dry low- midlevel troposphere high cloud base plateau region favor lightning, while strong conditions basin...
We explored the role of water vapor content below freezing level in response idealized supercell storm electrical processes to increased concentrations cloud condensation nuclei (CCN). Using Weather Research and Forecasting model coupled with parameterizations electrification discharging, we performed 30 simulations by varying both CCN concentration level. The sensitivity showed a distinct CCN, depending on Enhancing thunderstorms produced new negative charge region above main positive...
A novel tetranuclear copper complex (TCC) has been successfully synthesized and characterized using high resolution mass spectrometry (HRMS), Fourier transform infrared spectroscopy (FTIR) X-ray single crystal diffraction technique. TCC was capable of triggering by Glutathione (GSH) to produce Cu (Ⅰ), then the resulted (Ⅰ) further converted overexpression endogenous H2O2 into •OH, a highly cytotoxic reactive oxygen species (ROS), thereby killing cancer cells. showed cytotoxicity 4T1, MCF7,...
Sulfur dioxide (SO2), nitrogen (NO2), and ozone (O3) are important atmospheric pollutants that affect air quality. The long-term variations of SO2 NO2 in 2008-2018 O3 2015-2018 the relatively less populated ecological economic zones Western Sichuan Plateau, Southwest China were analyzed. In 2008-2018, zone not significant, but Ganzi showed a slight upward trend. decreased significantly zone, especially Panzhihua, where changes obvious. From 2015 to 2018, concentration increased...