A5071243252- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Remote Sensing in Agriculture
- Atmospheric Ozone and Climate
- Calibration and Measurement Techniques
- Atmospheric and Environmental Gas Dynamics
- Remote Sensing and Land Use
- Satellite Image Processing and Photogrammetry
- Meteorological Phenomena and Simulations
- Urban Heat Island Mitigation
- Aeolian processes and effects
- GNSS positioning and interference
- Environmental Changes in China
- Satellite Communication Systems
- Advanced Image Fusion Techniques
- Remote-Sensing Image Classification
- Advanced Computational Techniques and Applications
- Precipitation Measurement and Analysis
China Centre for Resources Satellite Data and Application
2025
Ministry of Natural Resources
2025
Aerospace Information Research Institute
2019-2022
Chinese Academy of Sciences
2019-2022
University of Chinese Academy of Sciences
2018-2020
Institute of Remote Sensing and Digital Earth
2017-2019
State Key Laboratory of Remote Sensing Science
2017
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 directional polarimetric camera (DPC) is a Chinese satellite sensor with large field of view (FOV) (±50° both along-track and cross-track) high spatial resolution (about 3.3 km at nadir) that operates in sun-synchronous orbit. It difficult task to calibrate the in-flight relative radiometric variation sensors such wide FOV. In this study, new method based on Rayleigh scattering over ocean developed estimate sensitivity whole FOV DPC. Firstly, theoretical uncertainty analyzed response....
As the successors of HuanjingJianzai-1 (HJ-1) series satellites in Chinese Environmental Protection and Disaster Monitoring Satellite Constellation, first two HJ-2 A/B have been successfully launched on September 27 2020. The Polarized Scanning Atmospheric Corrector (PSAC) sensors, onboard satellites, are served as synchronously atmospheric correction instrument requiring high speed accurate aerosol optical depth (AOD) algorithm. For this purpose, we proposed a neural network based AOD...
The DPC is a multiangle sensor that detects atmospheric parameters. However, the retrieval of high-precision and high-spatial-resolution aerosol products from remains great challenge due to ill-posed nature problem. Thus, novel optical depth (AOD) algorithm was proposed using visible surface reflectance relationships (VISRRs). VISRR accounts for anisotropy needs neither shortwave infrared band nor database can retrieve AOD over dark bright land cover. Firstly, moderate-resolution imaging...
Himawari-8 (H8) 是由日本气象厅发射的新一代静止气象卫星,可实现10 min/次的高频次对地观测,搭载的AHI (Advanced Himawari Imager)...
China is planning to launch more and optical remote-sensing satellites with high spatial resolution multistep gains. Field calibration, the current operational method of satellite in-flight radiometric still does not have enough capacity meet these demands. Gaofen-1 (GF-1), as first Chinese High-resolution Earth Observation System, has been specially arranged obtain 22 images over clean ocean areas using Wide Viewing camera. Following this, Rayleigh scattering calibration was carried out for...
Obtaining accurate atmospheric parameters, e.g., aerosol optical depth (AOD) and column water vapor (CWV), is important for the quantitative correction (AC) of high-spatial resolution remote sensing images. However, due to strong temporal spatial changes it will be a challenge ensure spatiotemporal registration satellite images given AC parameters obtained separately from ground-based or other products, which affects significantly accuracy AC. The China National Space Administration launched...
Environment-2 (HJ-2) A/B satellites will be launched in 2020, which are expected to work as the successors of Environment-1 (HJ-1) Chinese Environment and Disaster Monitoring Prediction Satellite Constellation. A new space-borne instrument called Polarized Scanning Atmospheric Corrector (PSAC) also onboard HJ-2 satellites, aiming provide atmospheric properties for synchronous correction main sensors, such charge-coupled device cameras same satellite. PSAC is a cross-track scanning...
Different from the principal component analysis (PCA), non-negative matrix factorization (NMF) can provide more direct interpretation owning to non-subtractive combinations of basis vectors, and many practical problems also require vectors rather than orthogonal with alternating positive negative. In this study, we develop a hyperspectral surface reflectance reconstruction method based on NMF multispectral results in several wavelength bands. order test our spectral method, datasets typical...
Abstract. Many previous studies have shown that multiangle, multispectral polarimetric remote sensing can provide valuable information on aerosol microphysical and optical properties, in which the layer height (ALH) is an important parameter but with less studies, especially near-ultraviolet (near-UV) visible (VIS) wavelength bands. Based optimal estimation (OE) theory content analysis method, we focus sensitivity study of ALH synthetic data near-UV VIS range 410–865 nm, further to assess...
Environment-2 (HJ-2) satellites will be launched after 2019, which are designed as the successor of Environment-1 (HJ- 1) in Chinese Environment and Disaster Monitoring Prediction Satellite Constellation. Different from HJ-1 satellites, a new multispectral single-viewing polarimetric instrument called Polarized Scanning Atmospheric Corrector (PSAC) onboard on HJ-2 further provide aerosol properties for synchronous atmospheric correction main sensors, such charge-coupled device (CCD) cameras...
The remote sensing image is usually polluted by atmosphere components especially like aerosol particles. For the quantitative applications, radiative transfer model based atmospheric correction used to get reflectance with decoupling and surface consuming a long computational time. parallel computing solution method for temporal acceleration. strategy which uses multi-CPU work simultaneously designed do multispectral image. framework's flow main body of are described. Then, Chinese Gaofen-2...
Abstract. Fine-mode aerosol usually comes from anthropogenic emissions. The fine-mode optical depth (AODf) is an important parameter for estimating the particulate matter with aerodynamic diameter little than 2.5 μm (PM2.5). Compared to ground-based observations, AODf products satellite remote sensing have advantage of high spatial coverage, which suitable monitoring air quality at a regional or global scale. Up now, been released by several sensors, such as single-angle multi-spectral...
Normalized Differential Vegetation Index (NDVI), usually calculated by surface reflectance at red and near-infrared bands (NDVI_Surf), which is an essential index in remote sensing. NDVI_Surf generally used to discriminate different cover types adopted many models as a vital adjustable parameter estimate the sensing aerosol retrieval. However, challenging obtained directly top of atmosphere (NDVI_TOA). NDVI_TOA very susceptible with angles. If replaced NDVI_TOA, it will cause error...
From April 24 to 25, 2019, a characteristic floating dust event occured in Kashi, one of the most important cities Xingjiang province, China. The Dust Aerosol Observation (DAO) field campaign captured this case and provided us with comprehensive ground-based observation research case. instrument involved DAO included particles monitors, gas analyzer, nephelometer, radiometers, lidar, among others. Meanwhile, CALIPSO were used as satellite remote sensing perform auxiliary analysis....
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