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dc.contributor.author
Wang, Yawen
dc.contributor.author
Trentmann, Jörg
dc.contributor.author
Yuan, Wenping
dc.contributor.author
Wild, Martin
dc.date.accessioned
2019-02-07T16:57:55Z
dc.date.available
2019-02-01T04:41:32Z
dc.date.available
2019-02-07T16:57:55Z
dc.date.issued
2018-12
dc.identifier.issn
2072-4292
dc.identifier.other
10.3390/rs10121977
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/322283
dc.identifier.doi
10.3929/ethz-b-000322283
dc.description.abstract
To achieve high-quality surface solar radiation (SSR) data for climate monitoring and analysis, the two satellite-derived monthly SSR datasets of CM SAF CLARA-A2 and SARAH-E have been validated against a homogenized ground-based dataset covering 59 stations across China for 1993–2015 and 1999–2015, respectively. The satellite products overestimate surface solar irradiance by 10.0 W m−2 in CLARA-A2 and 7.5 W m−2 in SARAH-E on average. A strong urbanization effect has been noted behind the large positive bias in China. The bias decreased after 2004, possibly linked to a weakened attenuating effect of aerosols on radiation in China. Both satellite datasets can reproduce the monthly anomalies of SSR, indicated by a significant correlation around 0.8. Due to the neglection of temporal aerosol variability in the satellite algorithms, the discrepancy between the satellite-estimated and ground-observed SSR trends slightly increases in 1999–2015 as compared to 1993–2015. The seasonal performance of the satellite products shows a better accuracy during warm than cold seasons. With respect to the spatial performance, the effects from anthropogenic aerosols, dust aerosols and high elevation and snow-covered surfaces should be well considered in the satellite SSR retrievals to further improve the performance in the eastern, northwestern and southwestern parts of China, respectively.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
MDPI
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
surface solar radiation
en_US
dc.subject
solar brightening
en_US
dc.subject
satellite
en_US
dc.subject
validation
en_US
dc.subject
China
en_US
dc.title
Validation of CM SAF CLARA-A2 and SARAH-E surface solar radiation datasets over China
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2018-12-07
ethz.journal.title
Remote Sensing
ethz.journal.volume
10
en_US
ethz.journal.issue
12
en_US
ethz.journal.abbreviated
Remote sens.
ethz.pages.start
1977
en_US
ethz.size
18 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Basel
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2019-02-01T04:41:33Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-02-07T16:58:28Z
ethz.rosetta.lastUpdated
2019-02-07T16:58:28Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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