Abstract

A new approach based on a neural-network technique for reduction in the computation time of radiative-transfer models is presented. This approach gives high spectral resolution without significant loss of accuracy. A rigorous radiative-transfer model is used to calculate radiation values at a few selected wavelengths, and a neural-network algorithm replenishes them to a complete spectrum with radiation values at a high spectral resolution. This method is used for the UV and visible spectral ranges. The results document the ability of a neural network to learn this specific task. More than 20,000 UV-index values for all kinds of atmosphere are calculated by both the rigorous radiative-transfer model alone and the model in combination with the neural-network algorithm. The agreement between both approaches is generally of the order of ±1%; the computation time is reduced by a factor of more than 20. The new algorithm can be used for all kinds of high-quality radiative-transfer model to speed up computation time.

© 2001 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Validation of ozone monitoring instrument ultraviolet index against ground-based UV index in Kampala, Uganda

Dennis Muyimbwa, Arne Dahlback, Taddeo Ssenyonga, Yi-Chun Chen, Jakob J. Stamnes, Øyvind Frette, and Børge Hamre
Appl. Opt. 54(28) 8537-8545 (2015)

Neural network scheme for the retrieval of total ozone from Global Ozone Monitoring Experiment data

Martin D. Müller, Anton Kaifel, Mark Weber, and John P. Burrows
Appl. Opt. 41(24) 5051-5058 (2002)

GOME level 1-to-2 data processor version 3.0: a major upgrade of the GOME/ERS-2 total ozone retrieval algorithm

Robert Spurr, Diego Loyola, Werner Thomas, Wolfgang Balzer, Eberhard Mikusch, Bernd Aberle, Sander Slijkhuis, Thomas Ruppert, Michel van Roozendael, Jean-Christopher Lambert, and Trisnanto Soebijanta
Appl. Opt. 44(33) 7196-7209 (2005)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription