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Article: Comprehensive Assessment of Global Surface Net Radiation Products and Uncertainty Analysis

TitleComprehensive Assessment of Global Surface Net Radiation Products and Uncertainty Analysis
Authors
Keywordsassessment
CERES
global products
net radiation
uncertainty analysis
Issue Date2018
Citation
Journal of Geophysical Research: Atmospheres, 2018, v. 123, n. 4, p. 1970-1989 How to Cite?
AbstractEarth surface net radiation (Rn) characterizes the surface radiation budget and plays a critical role in ecological, biogeochemical, and hydrological processes. The Rn products from remote sensing and reanalysis have not been validated comprehensively. In this study, four Rn products (Clouds and the Earth's Radiant Energy System [CERES], ERA-Interim, Modern-Era Retrospective analysis for Research and Applications version 2, and Japanese 55-year Reanalysis) were validated using global ground measurements on monthly (255 sites) and annual (172 sites) timescales. These products have similar accuracies, with average root-mean-square error (RMSE) ranges of 5.35 W m−2 (monthly) and 2.30 W m−2 (annually). However, varying accuracies and systemic biases exist across different climatic zones. The annual land Rn intercomparison illustrates that large uncertainty exists over polar regions and deserts. A significantly negative annual anomaly in the CERES product for the 2001–2008 period is identified when examining annual Rn anomalies over the global land surface. Detailed uncertainty analysis indicates that the global CERES Rn anomaly is mainly due to different versions of input data such as aerosol optical thickness and atmospheric profiles (in 2006 and 2008) and cloud properties (in 2002). This work demonstrates that temporal analysis provides powerful quality control for global time series satellite products when the validation using ground measurements fails to capture potential issues.
Persistent Identifierhttp://hdl.handle.net/10722/321777
ISSN
2023 Impact Factor: 3.8
2023 SCImago Journal Rankings: 1.710
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorJia, Aolin-
dc.contributor.authorLiang, Shunlin-
dc.contributor.authorJiang, Bo-
dc.contributor.authorZhang, Xiaotong-
dc.contributor.authorWang, Guoxin-
dc.date.accessioned2022-11-03T02:21:22Z-
dc.date.available2022-11-03T02:21:22Z-
dc.date.issued2018-
dc.identifier.citationJournal of Geophysical Research: Atmospheres, 2018, v. 123, n. 4, p. 1970-1989-
dc.identifier.issn2169-897X-
dc.identifier.urihttp://hdl.handle.net/10722/321777-
dc.description.abstractEarth surface net radiation (Rn) characterizes the surface radiation budget and plays a critical role in ecological, biogeochemical, and hydrological processes. The Rn products from remote sensing and reanalysis have not been validated comprehensively. In this study, four Rn products (Clouds and the Earth's Radiant Energy System [CERES], ERA-Interim, Modern-Era Retrospective analysis for Research and Applications version 2, and Japanese 55-year Reanalysis) were validated using global ground measurements on monthly (255 sites) and annual (172 sites) timescales. These products have similar accuracies, with average root-mean-square error (RMSE) ranges of 5.35 W m−2 (monthly) and 2.30 W m−2 (annually). However, varying accuracies and systemic biases exist across different climatic zones. The annual land Rn intercomparison illustrates that large uncertainty exists over polar regions and deserts. A significantly negative annual anomaly in the CERES product for the 2001–2008 period is identified when examining annual Rn anomalies over the global land surface. Detailed uncertainty analysis indicates that the global CERES Rn anomaly is mainly due to different versions of input data such as aerosol optical thickness and atmospheric profiles (in 2006 and 2008) and cloud properties (in 2002). This work demonstrates that temporal analysis provides powerful quality control for global time series satellite products when the validation using ground measurements fails to capture potential issues.-
dc.languageeng-
dc.relation.ispartofJournal of Geophysical Research: Atmospheres-
dc.subjectassessment-
dc.subjectCERES-
dc.subjectglobal products-
dc.subjectnet radiation-
dc.subjectuncertainty analysis-
dc.titleComprehensive Assessment of Global Surface Net Radiation Products and Uncertainty Analysis-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/2017JD027903-
dc.identifier.scopuseid_2-s2.0-85042123327-
dc.identifier.volume123-
dc.identifier.issue4-
dc.identifier.spage1970-
dc.identifier.epage1989-
dc.identifier.eissn2169-8996-
dc.identifier.isiWOS:000427774500005-

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