Dr. Weizhen Hou Profile

Dr. Weizhen Hou

at Institute of Remote Sensing and Digital Earth

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 27 March 2022 Paper

Preliminary retrieval and validation of aerosol optical depth from the spaceborne synchronization monitoring atmospheric corrector

Weizhen Hou, Yundong Xuan, Bangyu Ge, Yanqing Xie, Lingling Xu, Xiao Liu, Zheng Shi, Yan Ma

Proceedings Volume 12169, 121699W (2022) https://doi.org/10.1117/12.2625722

KEYWORDS: Aerosols, Satellites, Reflectivity, Atmospheric optics, Atmospheric particles, Atmospheric monitoring, Satellite imaging, Atmospheric sensing, Polarization, MODIS

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The high-resolution multi-mode imaging satellite called GFDM (Gao Fen Duo Mo) has been successful launched in July 3 of 2020, which was integrated with 1 panchromatic and 8 multispectral bands with the spatial resolution of 0.42 m and 1.6 m, respectively. The Synchronization Monitoring Atmospheric Corrector (SMAC) instrument was also on board GFDM satellite, aiming for offering time synchronized and field of view overlapped atmospheric measurements to improve the atmospheric correction of the GFDM main sensor image. As the first civilian atmospheric corrector onboard high spatial resolution satellite with polarization detection, SMAC has 8 wavelength bands from visible to short-wave infrared with the spatial resolution about 6.7 km. In order take full advantage of the multispectral measurements of SMAC, we investigate to retrieve the aerosol optical depth (AOD) by using the intensity measurements in this study. To decouple the surface-atmosphere contribution from SAMC measurements, the corresponding surface reflectance over land is derived from the Moderate-resolution Imaging Spectroradiometer (MODIS) surface bi-directional reflectance climatology. Based on the principal component analysis method and the dataset from spectral libraries, the surface reflectance ratios are further obtained by spectral conversion with the spectral response function from MODIS to SAMC for aerosol retrieval. With the aerosol look-up table (LUT) established by the Second Simulation of the Satellite Signal in the Solar Spectrum (6S) radiation transmission model, the multispectral inversions are carried out and the AODs are retrieved. In addition, the AOD data from Aerosol Robotic Network are used to validate the retrieved results from SAMC by the spatial-temporal matching, the statistical parameters including the root mean square error (RMSE) and the correlation coefficient (R) are employed together. By this means, the retrieved AODs from the intensity measurements of SAMC are preliminary investigated.

Proceedings Article | 27 March 2022 Paper

Data preprocessing methods and procedures for the wide swath polarized scanning atmospheric corrector onboard HJ-2A/B satellites

Xuefeng Lei, Zhenhai Liu, Fei Tao, Xinxin Zhao, Weizhen Hou, Honglian Huang, Yanqing Xie, Hao Dong, Peng Zou, Maoxin Song, Jin Hong

Proceedings Volume 12169, 121698D (2022) https://doi.org/10.1117/12.2625113

KEYWORDS: Polarization, Calibration, Atmospheric corrections, Remote sensing

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Proceedings Article | 24 November 2021 Paper

Hyperspectral surface reflectance reconstruction based on non-negative matrix factorization and multispectral results

Weizhen Hou, Zhengqiang Li, Xiaogang Dong, Zhiyuan Zhou, Bangyu Ge, Yang Zheng, Qian Yao, Cheng Fan, Zheng Shi

Proceedings Volume 12064, 120640E (2021) https://doi.org/10.1117/12.2606327

KEYWORDS: Reflectivity, Principal component analysis, MODIS, Short wave infrared radiation, Satellites, Remote sensing, Mid-IR, MATLAB

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Proceedings Article | 12 March 2021 Paper

Hyperspectral and multispectral remote sensing of aerosols based on surface spectral reconstruction by PCA

Weizhen Hou, Zhengqiang Li, Dong Yang, Siheng Wang, Hua Xu

Proceedings Volume 11763, 117631X (2021) https://doi.org/10.1117/12.2586309

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Proceedings Article | 12 March 2021 Paper

Seasonal change analysis of multispectral BRDF for different surface types

Yang Zheng, Weizhen Hou, Zhengqiang Li, Wenbin Xu, Xingrun Liu, Leiku Yang

Proceedings Volume 11763, 117639Y (2021) https://doi.org/10.1117/12.2588324

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Proceedings Article | 5 November 2020 Paper

Preliminary study on the multispectral measurement simulations of polarized scanning atmospheric corrector image

Weizhen Hou, Yanqing Xie, Zhengqiang Li, Hongji Yang, Zhongzheng Hu, Chaoyu Song, Jun Lin, Honglian Huang, Xuefeng Lei, Bangyu Ge, Yan Ma

Proceedings Volume 11566, 115660E (2020) https://doi.org/10.1117/12.2577500

KEYWORDS: Polarization, Satellites, Atmospheric modeling, Aerosols, Satellite imaging, Radiative transfer

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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) satellites in Chinese Environment and Disaster Monitoring and Prediction Satellite Constellation. A new space-borne instrument called Polarized Scanning Atmospheric Corrector (PSAC) also will be onboard HJ-2 satellites, aiming to provide the atmospheric properties for synchronous atmospheric correction of the main sensors, such as the charge-coupled device cameras onboard the same satellite. PSAC is a cross-track scanning polarimeter with polarized channels from near-ultraviolet to shortwave infrared, centered in 410, 443, 555, 670, 865, 910, 1380, 1610 and 2250 nm. In order to test the performance of inversion algorithms and software modules, synthetic data simulated by the vector radiative transfer is indispensable. In this paper, the regional simulation of PSAC multispectral measurements are preliminarily studied, and the Unified Linearized Vector Radiative Transfer Model (UNL-VRTM) has been used as the forward model. For the observation geometries, the viewing zenith angles are calculated by the linear interpolation over the cross-track scanning angle range from west to east, while the viewing azimuth angle are simulated by following the azimuth angle distribution of other corresponding satellite. By taking the vegetated surface type as an example, the multispectral Lambertian surface reflectance and wavelength-independent BPDF model are used in the forward simulation, and different aerosol optical depth with fine-dominated and coarse-dominated aerosols are considered. In this way, the multispectral measurements can be obtained by the forward simulations over a regional grid with the predefined latitude and longitude, and further analysis are carried out based on the synthetic data. Thus, this study can provide key support to the testbed of inversion algorithms and software modules before and after the satellite launch.

Proceedings Article | 5 November 2020 Paper

Improvement of aerosol fine mode fraction retrieval from skylight measurements by degree of linear polarization: information content analysis

Fengxun Zheng, Weizhen Hou, Zhengqiang Li

Proceedings Volume 11566, 1156602 (2020) https://doi.org/10.1117/12.2572302

KEYWORDS: Aerosols, Scattering, Polarization, Atmospheric modeling, Polarimetry, Error analysis, Atmospheric particles, Atmospheric sensing, Near infrared

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Proceedings Article | 5 November 2020 Paper

Sensitivity study of synthetic polarization measurements in UV wavelength bands

Xiaolong Hao, Weizhen Hou, Zheng Shi, Cheng Fan

Proceedings Volume 11566, 115660F (2020) https://doi.org/10.1117/12.2579307

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SPIE Journal Paper | 21 February 2020

Aerosol retrieval study from multiangle polarimetric satellite data based on optimal estimation method

Fengxun Zheng, Zhengqiang Li, Weizhen Hou, Lili Qie, Chi Zhang

JARS, Vol. 14, Issue 01, 014516, (February 2020) https://doi.org/10.1117/12.10.1117/1.JRS.14.014516

KEYWORDS: Aerosols, Atmospheric modeling, Satellites, Polarimetry, Polarization, Atmospheric particles, Reflectivity, Refractive index, Remote sensing, Error analysis

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Proceedings Article | 18 December 2019 Paper

An impact study of NDVI on the BPDF model under different atmosphere and multi-angles conditions

Bangyu Ge, Zhengqiang Li, Weizhen Hou, Yan Ma, Yisong Xie, Haofei Wang, Sifeng Zhu, Jie Chen

Proceedings Volume 11338, 1133834 (2019) https://doi.org/10.1117/12.2547899

KEYWORDS: Atmospheric modeling, Reflectivity, Aerosols, Vegetation, Bidirectional reflectance transmission function, Remote sensing, Atmospheric particles, Near infrared, Satellites, Polarization

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Proceedings Article | 18 December 2019 Paper

Study on errors propagation in synchronous atmospheric correction for HJ-2 satellites

Weizhen Hou, Zhengqiang Li, Chaoyu Song, Jun Lin, Yan Ma, Bangyu Ge, Fengxun Zheng

Proceedings Volume 11338, 113380V (2019) https://doi.org/10.1117/12.2542736

KEYWORDS: Satellites, Atmospheric corrections, Error analysis, Aerosols, Atmospheric modeling, CCD cameras, Remote sensing, Vegetation

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Proceedings Article | 12 March 2019 Paper

Study on the spectral reconstruction of typical surface types based on spectral library and principal component analysis

Weizhen Hou, Yilan Mao, Chi Xu, Zhengqiang Li, Donghui Li, Yan Ma, Hua Xu

Proceedings Volume 11023, 110232T (2019) https://doi.org/10.1117/12.2521743

KEYWORDS: Reflectivity, Principal component analysis, Vegetation, Remote sensing, Satellites, Spectral models, Visible radiation, Soil science, Systems modeling

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Proceedings Article | 8 March 2018 Paper

A parallel method of atmospheric correction for multispectral high spatial resolution remote sensing images

Shaoshuai Zhao, Chen Ni, Jing Cao, Zhengqiang Li, Xingfeng Chen, Yan Ma, Leiku Yang, Weizhen Hou, Lili Qie, Bangyu Ge, Li Liu, Jin Xing

Proceedings Volume 10611, 1061109 (2018) https://doi.org/10.1117/12.2283380

KEYWORDS: Atmospheric corrections, Remote sensing, Multispectral imaging, Spatial resolution, Image processing, Image segmentation, Satellites

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Proceedings Article | 15 October 2015 Paper

Comparison between dust and haze aerosol properties of the 2015 Spring in Beijing using ground-based sun photometer and lidar

Xingfeng Chen, Yang Lv, Wanchun Zhang, Zhengqiang Li, Hua Xu, Donghui Li, Weizhen Hou, Caitao Li, Yi Song Xie, Ying Zhang, Li Li, Xiaodong Mei

Proceedings Volume 9674, 96740O (2015) https://doi.org/10.1117/12.2197672

KEYWORDS: Air contamination, Aerosols, Atmospheric particles, Particles, LIDAR, Refractive index, Pollution, Remote sensing, Sun, Photometry

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Proceedings Article | 15 October 2015 Paper

Retrieval of aerosol extinction coefficients from ground-based 532nm lidar during APEC conference in Beijing

Zhao Liu, Zhengqiang Li, Yang Lv, Weizhen Hou, Xingfeng Chen

Proceedings Volume 9671, 96710K (2015) https://doi.org/10.1117/12.2199179

KEYWORDS: Aerosols, Atmospheric particles, LIDAR, Signal attenuation, Visibility, Signal detection, Atmospheric sciences, Clouds, Backscatter, Active remote sensing

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Proceedings Article | 8 October 2015 Paper

A sensitivity study of atmospheric reflectance to aerosol layer height based on multi-angular polarimetric measurements

Lili Qie, Donghui Li, Zhengqiang Li, Ying Zhang, Weizhen Hou, Xingfeng Chen

Proceedings Volume 9678, 96780V (2015) https://doi.org/10.1117/12.2199671

KEYWORDS: Aerosols, Reflectivity, Atmospheric particles, Ultraviolet radiation, Atmospheric sensing, Absorption, Atmospheric modeling, Satellites, Polarimetry, Radiative transfer

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Proceedings Article | 8 October 2015 Paper

Study on pixel matching method of the multi-angle observation from airborne AMPR measurements

Weizhen Hou, Lili Qie, Zhengqiang Li, Xiaobing Sun, Jin Hong, Xingfeng Chen, Hua Xu, Bin Sun, Han Wang

Proceedings Volume 9675, 96751Z (2015) https://doi.org/10.1117/12.2199777

KEYWORDS: Scattering, Sun, Aerosols, Remote sensing, Radio optics, Radiometry, Reflectivity, Lithium, Analytical research, Detection and tracking algorithms

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Proceedings Article | 8 October 2015 Paper

Study the polarization and depolarization properties of atmospheric aerosol multiple scattering based on the successive order of scattering

Weizhen Hou, Bin Sun, Zhengqiang Li, Xiaobing Sun, Jin Hong, Lili Qie, Han Wang

Proceedings Volume 9678, 96780Z (2015) https://doi.org/10.1117/12.2199785

KEYWORDS: Scattering, Polarization, Aerosols, Radiative transfer, Atmospheric particles, Atmospheric modeling, Multiple scattering, Light scattering, Mie scattering, Remote sensing

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SPIE Journal Paper | 20 June 2014

High temporal resolution aerosol retrieval using Geostationary Ocean Color Imager: application and initial validation

Yuhuan Zhang, Zhengqiang Li, Ying Zhang, Weizhen Hou, Hua Xu, Cheng Chen, Yan Ma

JARS, Vol. 8, Issue 01, 083612, (June 2014) https://doi.org/10.1117/12.10.1117/1.JRS.8.083612

KEYWORDS: Aerosols, Reflectivity, MODIS, Temporal resolution, Imaging systems, Calibration, Atmospheric modeling, Sensors, Satellites, Atmospheric particles

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Showing 5 of 19 publications

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