A5064307479- Land Use and Ecosystem Services
- Urban Design and Spatial Analysis
- Remote Sensing and Land Use
- Urban Transport and Accessibility
- COVID-19 epidemiological studies
- Impact of Light on Environment and Health
- Regional Economics and Spatial Analysis
- Human Mobility and Location-Based Analysis
- Urban Green Space and Health
- Urban Heat Island Mitigation
- HIV/AIDS Research and Interventions
- Air Quality and Health Impacts
- Adolescent Sexual and Reproductive Health
- COVID-19 Pandemic Impacts
- Environmental Changes in China
- SARS-CoV-2 and COVID-19 Research
- Urban, Neighborhood, and Segregation Studies
- HIV, Drug Use, Sexual Risk
- Regional Economic and Spatial Analysis
- Health disparities and outcomes
- Remote Sensing in Agriculture
- Urbanization and City Planning
- Spatial and Panel Data Analysis
- Air Quality Monitoring and Forecasting
- Evaluation Methods in Various Fields
Shanghai Jiao Tong University
2009-2025
Wuhan University
2016-2025
University of Hong Kong
2023-2025
Inner Mongolia University
2023-2024
Wenzhou Institute of Technology Testing & Calibration
2024
Lanzhou University
2020-2024
Hebei University of Technology
2010-2024
Ministry of Agriculture and Rural Affairs
2022-2024
Shanghai University
2023
Chinese Academy of Sciences
2006-2023
An outbreak of clusters viral pneumonia due to a novel coronavirus (2019-nCoV/SARS-CoV-2) happened in Wuhan, Hubei Province China December 2019. Since the outbreak, several groups reported estimated R0 Coronavirus Disease 2019 (COVID-19) and generated valuable prediction for early phase this outbreak. After implementation strict prevention control measures China, new estimation is needed. infectious disease dynamics SEIR (Susceptible, Exposed, Infectious, Removed) model was applied estimate...
Fine particles (PM2.5) and coarse (PM2.5–10) are generally produced by different sources, so the PM2.5/PM10 ratio reveals characteristics of particle pollution. The can be used to characterize underlying atmospheric processes evaluate historical PM2.5 pollution in absence direct measurements. However, application needs its varying pattern because PM concentrations change significantly at time space. Hourly PM10 observations nine monitoring sites urban area (Urban-sites) one remote...
Air pollution is one of the key environmental problems associated with urbanization and land use. Taking Wuhan city, Central China, as a case example, we explore quantitative relationship between use (built-up land, water bodies, vegetation) air quality (SO2, NO2, PM10) based on nine ground-level monitoring sites from long-term spatio-temporal perspective in 2007–2014. Five buffers radiuses 0.5 to 4 km are created at each site geographical information system (GIS) areas categories within...
Methods for estimating the spatial distribution of PM2.5 concentrations have been developed but not yet able to effectively include correlation. We report on development a back-propagation neural network (S-BPNN) model designed specifically make such correlations implicit by incorporating lag variable (SLV) as virtual input variable. The S-BPNN fits nonlinear relationship between ground-based air quality monitoring station measurements PM2.5, satellite observations aerosol optical depth,...
The lockdown of cities against the COVID-19 epidemic directly decreases urban socioeconomic activities. Remotely sensed night-time light (NTL) provides a macro perspective to capture these variations. Here, taking 20 global megacities as examples, we adopted NASA's Black Marble NTL data with daily resolution investigate their spatio-temporal changes. We collected products for four weeks (one month) before and after date in each city, which were then summarized weekly monthly averaged images...
Abstract An outbreak of clusters viral pneumonia due to a novel coronavirus (2019-nCoV / SARS-CoV-2) happened in Wuhan, Hubei Province China December 2019. Since the outbreak, several groups reported estimated R 0 Coronavirus Disease 2019 (COVID-19) and generated valuable prediction for early phase this outbreak. After implementation strict prevention control measures China, new estimation is needed. infectious disease dynamics SEIR (Susceptible, Exposed, Infectious Removed) model was...
Quantifying the aggregation patterns of urban population, economic activities, and land use are essential for understanding compact development, but little is known about difference among distribution characteristics how built environment influences aggregation. In this study, five elements collected in Wuhan, China, namely population density, floor area ratio, business POIs, road network built-up as representative activities use. An inverse S-shape function employed to fit elements' macro...
Abstract Most intensive human activities occur in lowlands. However, sporadic reports indicate that are expanding some Asian highlands. Here we investigate the expansions of highlands and their effects over Asia from 2000 to 2020 by combining earth observation data socioeconomic data. We find ∼23% activity ∼76% these comes ecological lands, reaching 95% Southeast Asia. The intensify habitat fragmentation result large costs low lower-middle income countries, they also support developments....
Abstract The spatial agglomeration of urban elements results in the center-periphery structure, but difference gradients socioeconomic and physical is unclear. This study investigates how land density (ULD) nighttime light intensity (NLI) decline with distance to center(s) using inverse-S function. Taking 30 global megacities as examples, we acquired their 2020 represent elements, respectively. ULD NLI concentric rings have been calculated compare from city center(s). Results show that both...
Abstract The urban scaling theory (UST) strives for a universal taxonomy that depicts relationships among indicators (e.g. energy consumption, economic output) with city size. However, the lack of international agreement on definitions and statistics complicates cross-country comparisons performance. Remote sensing provides uniform standard measuring cities around world. To scrutinize consistency UST, we quantified changes in remotely sensed built-up areas (UBA) nighttime lights (NTL)...
With the development of urbanization and industrialization worldwide, soil heavy metal pollution has become a critical pressing environmental problem in urban areas. Soil metals exhibit complex varying spatial aggregation diffusion processes within diverse landscapes, especially different areas with levels. However, many existing experimental methods conventional models overlook crucial aspects autocorrelation heterogeneity between influencing factors. This neglect poses significant...
The coronavirus disease 2019 (COVID-19) has become a life-threatening pandemic. epidemic trends in different countries vary considerably due to policy-making and resources mobilization. We calculated basic reproduction number (R0) the time-varying estimate of effective reproductive (Rt) COVID-19 by using maximum likelihood method sequential Bayesian method, respectively. European North American possessed higher R0 unsteady Rt fluctuations, whereas some heavily affected Asian showed...
Understanding the scaling characteristics in China is critical for perceiving development process of rapidly urbanising countries. This paper conducts a comprehensive analysis with quantitative assessment large number diverse urban indicators 275 Chinese cities. Our findings confirm that laws can also be applied to but demonstrate some unique features echoing its distinct urbanisation. population agglomeration results more effective economic production economies scale infrastructure are less...