研究目的
Investigating the importance of spectral range and angular resolution for aerosol retrieval from multiangle photopolarimetric measurements over land.
研究成果
The study concludes that including shortwave infrared bands significantly improves the retrieval of aerosol properties, especially for coarse mode aerosols. Using more than five viewing angles does not significantly improve retrieval accuracy. The findings are supported by both synthetic and real RSP measurements.
研究不足
The study is limited to land surfaces and does not account for cloud effects. The accuracy of aerosol property retrievals is dependent on the spectral range and angular resolution of the measurements.
1：Experimental Design and Method Selection:
The study uses simulated measurements for different spectral ranges and angular resolutions and real measurements from the RSP during the PODEX and SEAC4RS campaigns. The SRON aerosol retrieval algorithm is extended to handle spectrally dependent refractive indices.
2：Sample Selection and Data Sources:
Synthetic measurements include 1000 combinations of aerosol parameters. Real measurements are from RSP over land near AERONET stations during PODEX and SEAC4RS campaigns.
3：List of Experimental Equipment and Materials:
The Research Scanning Polarimeter (RSP) is used for real measurements. Synthetic measurements are generated using a forward radiative transfer model.
4：Experimental Procedures and Operational Workflow:
Retrievals are performed on simulated and real RSP measurements to investigate the impact of spectral range and angular resolution on aerosol property retrieval accuracy.
5：Data Analysis Methods:
The Phillips–Tikhonov regularization-based inversion algorithm is used for aerosol retrieval. Comparisons are made with AERONET measurements for validation.
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