A5100752838- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
- Air Quality and Health Impacts
- Atmospheric and Environmental Gas Dynamics
- Urban Heat Island Mitigation
- Plant Water Relations and Carbon Dynamics
- Cryospheric studies and observations
- Remote Sensing in Agriculture
- Air Quality Monitoring and Forecasting
- Soil Moisture and Remote Sensing
- Climate change and permafrost
- Aeolian processes and effects
- Remote Sensing and LiDAR Applications
- Remote Sensing and Land Use
- Winter Sports Injuries and Performance
- Meteorological Phenomena and Simulations
- Geology and Paleoclimatology Research
- Urban Green Space and Health
- Noise Effects and Management
- Precipitation Measurement and Analysis
- Spectroscopy and Laser Applications
- Leaf Properties and Growth Measurement
- Calibration and Measurement Techniques
- Vehicle emissions and performance
Northwest Institute of Eco-Environment and Resources
2018-2025
Chinese Academy of Sciences
2009-2025
Chengdu University of Information Technology
2014-2025
China Aerospace Science and Technology Corporation
2024
Lanzhou University
2024
Shanghai Jiao Tong University
2022
Shaanxi Provincial Land Engineering Construction Group
2022
Northeastern University
2020
University of Electronic Science and Technology of China
2019
Shanghai Micro Satellite Engineering Center
2019
A variety of measurements have been used to evaluate the treatment aerosol radiative properties and impacts aerosols simulated by Model for Integrated Research on Atmospheric Global Exchange (MIRAGE). The water uptake in MIRAGE agrees with laboratory measurements, growth extinction relative humidity simulations field measurements. frequency near 100% is about twice that analyzed humidity. When calculate MIRAGE, optical depth most surface after cloudy conditions are filtered out differences...
Himawari-8 (H8), as a geostationary satellite, observing the full disk image of earth per 10 min, is very powerful tool to investigate atmospheric aerosol temporal variations. The advanced himawari imager (AHI) onboard H8 has several spectral bands similar with those Moderate Resolution Imaging Spectroradiometer (MODIS). Aerosol optical depth (AOD) thus possible be retrieved from AHI data using dark target (DT) method MODIS. Based on statistics study infrared these two satellite instruments,...
The fine-mode fraction (FMF) of aerosol optical depth (AOD) is a key parameter that represents the proportion fine particles relative to total aerosols in atmosphere. However, comparison ground-based measurements, FMF still difficult retrieve from satellite observations, as attempted by Moderate-resolution Imaging Spectroradiometer (MODIS) algorithm. In this paper, we introduce retrieval based on Polarization and Anisotropy Reflectances for Atmospheric Science coupled with Observations Lidar...
The MODIS land surface temperature (LST) product is one of the most widely used data sources to study climate and energy-water cycle at a global scale. However, large number invalid values caused by cloud cover limits wide application LST. In this study, two-step improved similar pixels (TISP) method was proposed for cloudy sky LST reconstruction. TISP validated using temperature-based over various types. ground measurements were collected fifteen stations from 2013 2018 during Heihe...
Rapid urbanization has the potential to fundamentally perturb energy budget and alter urban air quality. While it is clear that meteorological parameters are sensitive urbanization-induced changes in landscapes, a gap exists our knowledge about how land use cover affect dynamics of Herein, we simulated severe O 3 episode (10–16 July 2017) highly polluted PM 2.5 (25–30 December assessed phenomenon evolution pollutants induced by urbanization. We found expansion area (i.e., transition from...
To study the characteristics of ozone formation sensitivity changes in Chengdu-Chongqing area, summer （OFS） was analyzed using satellite observation OMI tropospheric column concentration HCHO and NO2. Additionally, effects meteorological factors, source emissions, their interactions on OFS were identified with geodetic detector. The results showed that zoning area dominated by a transitional regime, an share 42.42%. Less VOCs-limited regime observed, which mainly distributed urban areas...
Land surface temperature (LST) products derived from the moderate resolution imaging spectroradiometer (MODIS) sensor are one of most important data sources used to research land energy and water balance at regional global scales. However, MODIS severely contaminated by cloud cover, which limits applications LST products. In this paper, based on spatio-temporal autocorrelation variables, a reconstruction algorithm depending correlations between spatial pixels in multiple time phases...
The demand for greenhouse gas measurement has increased dramatically due to global warming. A 1.57-μm airborne double-pulse integrated-path differential absorption (IPDA) light detection and ranging (LIDAR) system CO2 concentration was developed. field experiments of this IPDA LIDAR were conducted at a flight altitude approximately 7 km, the weak echo signal ocean area successfully received. matched filter algorithm applied retrieval signals, pulse integration method used improve...
Abstract Toward the Kashi region in northwest of China, Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD) retrievals from Collection 6 (C6) MYD, 6.1 (C6.1) MOD, and C6.1 MYD during 2016–2017 are compared with ground‐based measurements Sun‐sky Radiometer Network (SONET), first comprehensive evaluation Dark Target (DT) Deep Blue (DB) a 10‐km spatial resolution latest AOD data set 2016–2018 is presented. In general, products (both DT DB algorithm) most effective...
Abstract. The aerosol fine-mode fraction (FMF) is an important optical parameter of aerosols, and the FMF difficult to accurately retrieve by traditional satellite remote sensing methods. In this study, retrieval was carried out based on multiangle polarization data Polarization Anisotropy Reflectances for Atmospheric Science coupled with Observations from Lidar (PARASOL), which overcame shortcomings algorithm in our previous research. research, China compared AErosol RObotic NETwork...
Soil moisture is a key factor in the water and heat exchange energy transformation of ecological systems critical importance to accurate obtainment soil content for supervising resources protecting regional global eco environments. In this study, we selected monitoring networks Naqu, Maqu, Tianjun on Qinghai–Tibetan Plateau as research areas, established database surface microwave scattering with AIEM (advanced integral equation model) mathematical expressions backscattering coefficient,...
We compare five slope correction methods developed by Walter et al., Montes Schleppi España and Gonsamo al. (referred to as WAL, MON, SCH, ESP, GON, respectively) using artificial fisheye pictures simulated graphics software a lookup table (LUT) retrieval method. The LUT is built simulating the directional gap fraction function of leaf area index (LAI) average inclination angle (ALIA) Poisson law. LAI ALIA estimates correspond case that provides lowest root-mean-square error between observed...
The expansion of urban areas and the increase in number buildings urbanization characteristics, such as roads, affect meteorological environment areas, resulting weakened pollutant dispersion. First, this paper uses GIS (geographic information system) spatial analysis technology landscape ecology methods to analyze dynamic changes land cover patterns Chengdu a result development. Second, most appropriate WRF (Weather Research Forecasting) model parameterization scheme is selected screened....
The fine-mode aerosol optical depth (AODf) is an important parameter for the environment and climate change study, which mainly represents anthropogenic aerosols component. Polarization Anisotropy of Reflectances Atmospheric Science coupled with Observations from a Lidar (PARASOL) instrument can detect polarized signal multi-angle observation comes radiation contribution aerosols, provides opportunity to obtain AODf directly. However, currently operational algorithm Laboratoire d’Optique...
In recent decades, microwave remote sensing (RS) has been used to measure soil moisture (SM). Long-term and large-scale RS SM datasets derived from various sensors have in environmental fields. Understanding the accuracies of products is essential for their proper applications. However, due mismatched spatial scale between ground-based observations, truth at pixel may not be accurately represented by especially when density situ measurements low. Because observations are often sparsely...