Retrieval of Aerosol and Surface Properties at High Spatial Resolution: Hybrid Approach and Demonstration Using Sentinel‐5p/TROPOMI and PRISMA DOI Creative Commons
Cheng Chen,

Pavel Litvinov,

Оleg Dubovik

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2024, Volume and Issue: 129(15)

Published: Aug. 2, 2024

Abstract Satellite remote sensing of aerosol is largely conducted at moderate or coarse spatial resolution around 1–10 km. Nevertheless, urban areas with high human activity, can originate from complex emission sources and may also vary strongly in space. Therefore, characterization fine essential for air quality study assessment anthropogenic pollution as well climate effects. However, space‐borne instruments are usually limited swath width spectral coverage which result lowering information content required surface retrieval. Based on the Generalized Retrieval Atmosphere Surface Properties (GRASP) algorithm, we propose a hybrid approach by combining measurements to retrieve properties simulataneously resolution. The revisting time provide advanced characterization. At same time, sensitive variability nearby sources. In this study, GRASP/Hybrid demonstrated tested based European Space Agency Sentinel‐5p/TROPOMI together Italian PRISMA satellite data. Specifically, detailed microphysical 10 km retrievals used priori derive loading 100 meter (m) m retrieval developed evaluated using available ground‐based measurements, including AERONET, VIIRS/DB Level 2 reflectance products.

Language: Английский

Extended aerosol and surface characterization from S5P/TROPOMI with GRASP algorithm. Part II: Global validation and Intercomparison DOI Creative Commons
Cheng Chen,

Pavel Litvinov,

Оleg Dubovik

et al.

Remote Sensing of Environment, Journal Year: 2024, Volume and Issue: 313, P. 114374 - 114374

Published: Aug. 22, 2024

Language: Английский

Citations

4
A High-Resolution Aerosol Retrieval Algorithm Via Deep Learning DOI
Bing Tu, Chengxin Hu, Bo Liu

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Multispectral Land Surface Reflectance Reconstruction Based on Non-Negative Matrix Factorization: Bridging Spectral Resolution Gaps for GRASP TROPOMI BRDF Product in Visible DOI Creative Commons
Weizhen Hou, Xiong Liu, Jun Wang

et al.

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(6), P. 1053 - 1053

Published: March 17, 2025

In satellite remote sensing, mixed pixels commonly arise in medium- and low-resolution imagery, where surface reflectance is a combination of various land cover types. The widely adopted linear mixing model enables the decomposition into constituent endmembers, effectively bridging spectral resolution gaps by retrieving properties individual This study introduces method to enhance multispectral data reconstructing additional information, particularly visible range, using TROPOMI BRDF product generated Generalized Retrieval Atmosphere Surface Properties (GRASP) algorithm. Employing non-negative matrix factorization (NMF), approach extracts basis vectors from reference libraries reconstructs key features limited number wavelength bands. comprehensive test results show that this effective supplementing information for specific wavelengths gas absorption strong or atmospheric correction errors are significant, demonstrating its applicability not only within 400–800 nm range but also across broader 400–2400 nm. While substitute hyperspectral observations, provides cost-effective means address datasets, facilitating improved characterization environmental monitoring. Future research will focus on refining libraries, improving reconstruction accuracy, expanding robustness diverse sensing applications.

Language: Английский

Citations

0
Monitoring of aerosol optical-microphysical properties from DPC/GF-5(02): A case study of dust event in North China Plain DOI Creative Commons

Yujia Cao,

Cheng Chen, Haixiao Yu

et al.

Atmospheric Environment, Journal Year: 2025, Volume and Issue: unknown, P. 121193 - 121193

Published: March 1, 2025

Language: Английский

Citations

0
Retrieval of Aerosol and Surface Properties at High Spatial Resolution: Hybrid Approach and Demonstration Using Sentinel‐5p/TROPOMI and PRISMA DOI Creative Commons
Cheng Chen,

Pavel Litvinov,

Оleg Dubovik

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2024, Volume and Issue: 129(15)

Published: Aug. 2, 2024

Abstract Satellite remote sensing of aerosol is largely conducted at moderate or coarse spatial resolution around 1–10 km. Nevertheless, urban areas with high human activity, can originate from complex emission sources and may also vary strongly in space. Therefore, characterization fine essential for air quality study assessment anthropogenic pollution as well climate effects. However, space‐borne instruments are usually limited swath width spectral coverage which result lowering information content required surface retrieval. Based on the Generalized Retrieval Atmosphere Surface Properties (GRASP) algorithm, we propose a hybrid approach by combining measurements to retrieve properties simulataneously resolution. The revisting time provide advanced characterization. At same time, sensitive variability nearby sources. In this study, GRASP/Hybrid demonstrated tested based European Space Agency Sentinel‐5p/TROPOMI together Italian PRISMA satellite data. Specifically, detailed microphysical 10 km retrievals used priori derive loading 100 meter (m) m retrieval developed evaluated using available ground‐based measurements, including AERONET, VIIRS/DB Level 2 reflectance products.

Language: Английский

Citations

3