Retrieval of Asian dust amount over land using ADEOS-II/GLI near UV data

Makoto Kuji; Noriko Yamanaka; Sachiko Hayashida; Akihiro Yamazaki; Akihiro Uchiyama

doi:10.1117/12.616764

29 August 2005 Retrieval of Asian dust amount over land using ADEOS-II/GLI near UV data

Makoto Kuji, Noriko Yamanaka, Sachiko Hayashida, Akihiro Yamazaki, Akihiro Uchiyama

Proceedings Volume 5890, Atmospheric and Environmental Remote Sensing Data Processing and Utilization: Numerical Atmospheric Prediction and Environmental Monitoring; 589015 (2005) https://doi.org/10.1117/12.616764
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We propose a retrieval method of Asian dust (Yellow sand or Kosa aerosol) columnar amount around source regions using a near ultraviolet radiometry observation from space. The method simultaneously retrieves an optical thickness and mode radius of Kosa aerosol, and then derives its columnar amount. The method was applied to ADEOS-II / GLI data in the spring of 2003 around Taklimakan desert source region, inland China. The retrieved optical thickness and mode radius were about 0.34 and 1.75 μm, respectively, at a validation site. They are comparable to the in situ observations conducted within the framework of ADEC project. The estimated columnar amount around a validation site is about 2.77 g m^-2, which seems reasonable under a relatively calm situation. The method should be further validated with a regional model simulation study, and then it is useful to monitor Asian dust around source regions from space in the future.

Citation Download Citation

Makoto Kuji, Noriko Yamanaka, Sachiko Hayashida, Akihiro Yamazaki, and Akihiro Uchiyama "Retrieval of Asian dust amount over land using ADEOS-II/GLI near UV data", Proc. SPIE 5890, Atmospheric and Environmental Remote Sensing Data Processing and Utilization: Numerical Atmospheric Prediction and Environmental Monitoring, 589015 (29 August 2005); https://doi.org/10.1117/12.616764

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