A5032516600- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Urban Heat Island Mitigation
- Land Use and Ecosystem Services
- Air Quality Monitoring and Forecasting
- Remote Sensing and Land Use
- COVID-19 impact on air quality
- Plant Water Relations and Carbon Dynamics
- Remote Sensing in Agriculture
- Climate variability and models
- Meteorological Phenomena and Simulations
- Impact of Light on Environment and Health
- Urban Green Space and Health
- Tropical and Extratropical Cyclones Research
- Industrial Technology and Control Systems
- Species Distribution and Climate Change
- Solar Radiation and Photovoltaics
- Safety and Risk Management
- Thermal and Kinetic Analysis
- Maritime Transport Emissions and Efficiency
- Hydraulic and Pneumatic Systems
- Advanced Sensor and Control Systems
- Rocket and propulsion systems research
Guangzhou University
2023-2024
Southern University of Science and Technology
2020-2024
Fujian Normal University
2024
Aerospace Information Research Institute
2019-2021
University of Chinese Academy of Sciences
2018-2021
Chinese Academy of Sciences
2019-2021
Institute of Remote Sensing and Digital Earth
2018
Beijing Union University
2003
Land use land cover (LULC) of city regions is strongly affected by urbanization and affects the thermal environment urban centers influencing surface temperature core areas their surroundings. These issues are addressed in current study, which focuses on two provincial capitals Pakistan, i.e., Lahore Peshawar. Using Landsat data, LULC determined with aim to (a) examine spatio-temporal changes over a period 20 years from 1998 2018 using CA-Markov model, (b) predict future scenarios for 2023...
Satellite HCHO data are widely used as a reliable proxy of non-methane volatile organic compounds (NMVOCs) to constrain underlying emissions and chemistry. Here, we examine global significant changes in columns at the early stage COVID-19 pandemic (January-April 2020) compared with same period 2019 observations from TROPOspheric Monitoring Instrument (TROPOMI). decline (11.0%) Northern China Plain (NCP) because combination meteorological impacts, lower yields NO
Abstract The frequency, intensity, and duration of extreme heatwaves are projected to increase in the global context climate change. However, evidence how anthropogenic emissions respond further impact air quality remains elusive. Here, we use satellite remote sensing measurements alongside chemical transport model simulations reveal abrupt variations primary secondary pollutants introduced by heatwaves. We highlight from China India, where sulfur dioxide (SO 2 ) nitrogen (NO columns over...
Abstract As urban areas expand globally, human activities are leading to a sustained increase in non-methane volatile organic compound (NMVOC) emissions, escalating both environmental and health-related concerns. Given their diverse origins, estimating anthropogenic NMVOC emissions levels from global remains challenging. Here, we integrate TROPOspheric Monitoring Instrument (TROPOMI) formaldehyde (HCHO) column data, Visible Infrared Imaging Radiometer Suite (VIIRS) nighttime light (NTL)...
In early 2020, two unique events perturbed ship emissions of pollutants around Southern China, proffering insights into the impacts on regional air quality: decline activities due to COVID-19 and global enforcement low-sulfur (<0.5%) fuel oil for ships. January February estimated NOx, SO2, primary PM2.5 over China dropped by 19, 71, 58%, respectively, relative same period in 2019. The NOx was mostly coastal waters inland waterways reduced activities. SO2 most pronounced outside Chinese...
Abstract Emissions of air pollutants and their precursors in urban closely relate to urbanization involving economic development, population growth, industrialization. Here we use formaldehyde (HCHO) columns from the TROPOspheric Monitoring Instrument (TROPOMI), night‐time light (NTL) radiance Visible Infrared Imaging Radiometer Suite, density data as respective proxies explore how anthropogenic non‐methane volatile organic compound (NMVOC) emissions evolve with Asia. HCHO correlate...
The novel infectious disease (COVID-19) took only a few weeks from its official inception in December 2019 to become global pandemic early 2020. Countries across the world went lockdown, and various strict measures were implemented reduce further spread of infection. Although, lockdown aimed at stopping COVID-19, however, Its positive implications also observed for environmental conditions regions. present study attempted explore eco-restoration coastal marine system response reduced...
Soil moisture content (SMC) plays an essential role in geoscience research. The SMC can be retrieved using artificial neural network (ANN) based on remote sensing data. quantity and quality of samples for ANN training testing are two critical factors that affect the retrieving results. This study focused sample optimization both quality. On one hand, a sparse exploitation (SSE) method was developed to solve problem scarcity, resultant from cloud obstruction optical images malfunction situ...
Using Surface Energy Balance System (SEBS) to estimate actual evapotranspiration (ET) on a regional scale generally uses gridded meteorological data by interpolating from stations with mathematical interpolation. The heterogeneity of underlying surfaces cannot be effectively considered when station measurements only This study aims highlight the improvement modeled Weather Research and Forecasting (WRF) mesoscale numerical model which fully considers over interpolation method providing...
Actual evapotranspiration (ET) with high spatiotemporal resolution is very important for the research on agricultural water resource management and cycle processes, it helpful to realize precision agriculture smart agriculture, provides critical references layout planning. Due impact of clouds, weather environment, orbital period optical satellite, there are difficulties in providing daily remote sensing data that not contaminated by clouds estimating ET spatial-temporal resolution. By...
Ozone production sensitivity is widely used to reveal the chemical dominant precursors of urban ozone rise. Here, we diagnose impact decline in global human activities level caused by COVID-19 on through ratio formaldehyde (HCHO) and NO2 (FNR = HCHO/NO2) observations from TROPOspheric Monitoring Instrument. We use a relative uncertainty threshold clean satellite FNR, our FNR present good correlation (R 0.6248) with U.S. Environmental Protection Agency observations. found that outbreak did...
Land use/cover change (LUCC) is a vital aspect representing global and humans’ impact on Earth’s surface. This study utilized the ESRI Cover 2020 China Dataset (CLCD), along with historical imagery from Google Earth, to develop method for assessment of land use data quality. Based assessment, CLCD was updated generate an improved Re-CLCD Pan-Pearl River Basin (PPRB) 1985 2020, analyze LUCC in PPRB over past 35 years. The results indicate following: (1) Among seven uses, built-up experienced...
Abstract Surface temperature is one of the key parameters for estimating regional evapotranspiration (ET) based on Energy Balance System (SEBS) model using remote sensing data. However, continuous daily surface data are often not available due to weather and environmental conditions. This paper proposed a scheme obtain reliable ET that WRF-simulated skin (TSK) then modifying deviation normalized difference vegetation index (NDVI). study aims explore whether can be viable option when...
Formaldehyde (HCHO) plays an important role in atmospheric photochemical reactions. Comparative studies between ground-based and satellite observations are necessary to assess promote the potential use of column HCHO as a proxy for surface volatile organic compound (VOC) oxidation. Previous have only validated temporal vertical profile variations at one point, with limited comparing horizontal spatial due sparse monitoring sites. The photochemistry-active Chinese Greater Bay Area (GBA) is...
Abstract Bromine monoxide (BrO) plays an important role in tropospheric chemistry. The state‐of‐the‐science TROPOspheric Monitoring Instrument (TROPOMI) offers the potential to monitor atmospheric composition with a fine spatial resolution of up 5.5 × 3.5 km 2 . We present here retrieval BrO columns from TROPOMI. implement stratospheric correction scheme using climatological approach based on latest GEOS‐Chem High Performance chemical transport model, and improve air mass factor calculation...
Accurate cropland classification is important for agricultural monitoring and related decision-making. The commonly used input spectral features cannot be employed to effectively distinguish crops that have similar spectro-temporal features. This study attempted improve the accuracy of using both thermal feature, i.e., land surface temperature (LST), normalized difference vegetation index (NDVI), classification. To amplify differences between crops, a index, namely, modified (mLSTI) was...
Temperature is the principal driver of global HCHO and its primary oxidation precursor biogenic volatile organic compounds (BVOCs). We revisit such a temperature (T-) dependency globally, leveraging TROPOMI column data. find substantial variations in T-dependency across plant functional types (PFTs), with highest over Broadleaf Evergreen Tropical Trees (doubling every 6.0 K ± 2.1 K) lowest Arctic C3 Grass 30.8 9.6 K). The GEOS-Chem model interprets columns’ at PFT level (r = 0.87), 16%...