Comparison of GOME-2 UVA satellite data to ground-based spectroradiometer measurements at a subtropical site

Parisi, Alfio V. and Downs, Nathan ORCID: https://orcid.org/0000-0002-3191-6404 and Turner, Joanna and King, Rachel ORCID: https://orcid.org/0000-0002-3302-0919 (2017) Comparison of GOME-2 UVA satellite data to ground-based spectroradiometer measurements at a subtropical site. IEEE Transactions on Geoscience and Remote Sensing, 55 (6). pp. 3145-3149. ISSN 0196-2892

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Abstract

The ultraviolet A (UVA) (315–400 nm) daily exposures and maximum daily irradiances from the Global Ozone Monitoring Experiment (GOME)-2 satellite have been compared over three years to the corresponding data from a ground-based spectroradiometer for a subtropical Southern Hemisphere site. This is one of the first such comparisons for the GOME-2 UVA waveband in the Southern Hemisphere. For the UVA daily exposures and the maximum daily irradiances, the comparisons were undertaken for all sky conditions and for cloud-free conditions. Under cloud-free conditions the R 2 of the fit regression line for the comparisons was 0.93 for the exposures and the irradiances. The influence of cloud reduced the R 2 values to 0.86 and 0.70 for the daily exposures and maximum irradiances, respectively. The relative root-mean-square error (rRMSE), mean absolute bias error (MABE), and mean bias error (MBE) for the maximum daily UVA irradiances on the cloud-free days were 0.08, 6.59 ± 7.32%, and −1.04 ± 9.83%, respectively. Similarly, for the daily UVA exposures on the cloud-free days, the rRMSE, MABE, and MBE were 0.10, 5.19 ± 6.42%, and −0.79 ± 8.24%, respectively. For the all-sky conditions, the corresponding values were 0.20, 15.23 ± 14.90%, and −0.79 ± 8.24% for the maximum daily irradiances and 0.19, 14.17 ± 14.56%, and −4.63 ± 20.60% for the daily exposures. In all studies of the influence of UVA on human health, this can complement ground-based measurements that provide the higher temporal and spatial resolution available only at a limited number of surface monitoring sites.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Second place winner, USQ Publication Excellence Awards for Journal Articles (April - June 2017).
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019)
Date Deposited: 15 Aug 2017 04:38
Last Modified: 13 Oct 2019 23:48
Uncontrolled Keywords: Global Ozone Monitoring Experiment-2 satellite; spectroradiometer; UVA
Fields of Research (2008): 02 Physical Sciences > 0299 Other Physical Sciences > 029901 Biological Physics
04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
Identification Number or DOI: https://doi.org/10.1109/TGRS.2017.2662714
URI: http://eprints.usq.edu.au/id/eprint/32965

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