SOM-network-based algorithm for retrieving over-ocean precipitable water from the SSM/I measurements

Hongbin Chen; Jianchun Bian; Peicai Yang; Daren Lu

doi:10.1117/12.319474

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19 August 1998 SOM-network-based algorithm for retrieving over-ocean precipitable water from the SSM/I measurements

Hongbin Chen, Jianchun Bian, Peicai Yang, Daren Lu

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Proceedings Volume 3503, Microwave Remote Sensing of the Atmosphere and Environment; (1998) https://doi.org/10.1117/12.319474
Event: Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 1998, Beijing, China

Abstract

Based on the nearly coincided and collocated SSM/I and radiosonde data provided by NASDA (Japan), a self-organizing map (SOM) network-based model is developed for retrieving the oceanic total precipitable water (PW) from the SSM/I brightness temperature measurements. The model was firstly trained with the 5/6th of the data and then tested by the rest data. Comparisons of retrieved results with other algorithms show that the SOM model is significantly better than the classical statistically-based algorithms, especially in the low PW regime. The consuming time for PW retrievals with the SOM model is also acceptable in the operational applications.

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Hongbin Chen, Jianchun Bian, Peicai Yang, and Daren Lu "SOM-network-based algorithm for retrieving over-ocean precipitable water from the SSM/I measurements", Proc. SPIE 3503, Microwave Remote Sensing of the Atmosphere and Environment, (19 August 1998); https://doi.org/10.1117/12.319474

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