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

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

Author Affiliations +

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.

Citation Download Citation

Hongbin Chen, Hongbin Chen, Jianchun Bian, Jianchun Bian, Peicai Yang, Peicai Yang, Daren Lu, 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); doi: 10.1117/12.319474; https://doi.org/10.1117/12.319474

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