Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble Model
Diffuse solar radiation is an essential component of surface solar radiation that contributes to carbon sequestration, photovoltaic power generation, and renewable energy production in terrestrial ecosystems. We constructed a 39-year (1982–2020) daily diffuse solar radiation dataset (CHSSDR), using...
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MDPI AG
2022-08-01
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| author | Jinyang Wu Hejin Fang Wenmin Qin Lunche Wang Yan Song Xin Su Yujie Zhang |
| author_facet | Jinyang Wu Hejin Fang Wenmin Qin Lunche Wang Yan Song Xin Su Yujie Zhang |
| author_sort | Jinyang Wu |
| collection | DOAJ |
| description | Diffuse solar radiation is an essential component of surface solar radiation that contributes to carbon sequestration, photovoltaic power generation, and renewable energy production in terrestrial ecosystems. We constructed a 39-year (1982–2020) daily diffuse solar radiation dataset (CHSSDR), using ERA5 and MERRA_2 reanalysis data, with a spatial resolution of 10 km through a developed ensemble model (generalized additive models, GAM). The validation results, with ground-based measurements, showed that GAM had a high and stable performance with the correlation coefficient (R), root-mean-square error (RMSE), and mean absolute error (MAE) for the sample-based cross-validations of 0.88, 19.54 Wm<sup>−2</sup>, and 14.87 Wm<sup>−2</sup>, respectively. CHSSDR had the highest consistency with ground-based measurements among the four diffuse solar radiation products (CERES, ERA5, JiEA, and CHSSDR), with the least deviation (MAE = 15.06 Wm<sup>−2</sup> and RMSE = 20.22 Wm<sup>−2</sup>) and highest R value (0.87). The diffuse solar radiation values in China range from 59.13 to 104.65 Wm<sup>−2</sup>, with a multi-year average value of 79.39 Wm<sup>−2</sup> from 1982 to 2020. Generally, low latitude and low altitude regions have larger diffuse solar radiation than high latitude and high altitude regions, and eastern China has less diffuse solar radiation than western China. This dataset would be valuable for analyzing regional climate change, photovoltaic applications, and solar energy resources. The dataset is freely available from figshare. |
| first_indexed | 2024-03-09T10:05:57Z |
| format | Article |
| id | doaj.art-e883bd69902247048d0ec51913d52c62 |
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| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T10:05:57Z |
| publishDate | 2022-08-01 |
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| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-e883bd69902247048d0ec51913d52c622023-12-01T23:08:25ZengMDPI AGRemote Sensing2072-42922022-08-011415369510.3390/rs14153695Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble ModelJinyang Wu0Hejin Fang1Wenmin Qin2Lunche Wang3Yan Song4Xin Su5Yujie Zhang6Hunan Key Laboratory of Remote Sensing of Ecological Environment in Dongting Lake Area, School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, ChinaHunan Key Laboratory of Remote Sensing of Ecological Environment in Dongting Lake Area, School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, ChinaHunan Key Laboratory of Remote Sensing of Ecological Environment in Dongting Lake Area, School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, ChinaHunan Key Laboratory of Remote Sensing of Ecological Environment in Dongting Lake Area, School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, ChinaKey Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, ChinaHunan Key Laboratory of Remote Sensing of Ecological Environment in Dongting Lake Area, School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, ChinaHunan Key Laboratory of Remote Sensing of Ecological Environment in Dongting Lake Area, School of Geography and Information Engineering, China University of Geosciences, Wuhan 430074, ChinaDiffuse solar radiation is an essential component of surface solar radiation that contributes to carbon sequestration, photovoltaic power generation, and renewable energy production in terrestrial ecosystems. We constructed a 39-year (1982–2020) daily diffuse solar radiation dataset (CHSSDR), using ERA5 and MERRA_2 reanalysis data, with a spatial resolution of 10 km through a developed ensemble model (generalized additive models, GAM). The validation results, with ground-based measurements, showed that GAM had a high and stable performance with the correlation coefficient (R), root-mean-square error (RMSE), and mean absolute error (MAE) for the sample-based cross-validations of 0.88, 19.54 Wm<sup>−2</sup>, and 14.87 Wm<sup>−2</sup>, respectively. CHSSDR had the highest consistency with ground-based measurements among the four diffuse solar radiation products (CERES, ERA5, JiEA, and CHSSDR), with the least deviation (MAE = 15.06 Wm<sup>−2</sup> and RMSE = 20.22 Wm<sup>−2</sup>) and highest R value (0.87). The diffuse solar radiation values in China range from 59.13 to 104.65 Wm<sup>−2</sup>, with a multi-year average value of 79.39 Wm<sup>−2</sup> from 1982 to 2020. Generally, low latitude and low altitude regions have larger diffuse solar radiation than high latitude and high altitude regions, and eastern China has less diffuse solar radiation than western China. This dataset would be valuable for analyzing regional climate change, photovoltaic applications, and solar energy resources. The dataset is freely available from figshare.https://www.mdpi.com/2072-4292/14/15/3695diffuse solar radiationensemble modelreanalysis datamachine learningChina |
| spellingShingle | Jinyang Wu Hejin Fang Wenmin Qin Lunche Wang Yan Song Xin Su Yujie Zhang Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble Model Remote Sensing diffuse solar radiation ensemble model reanalysis data machine learning China |
| title | Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble Model |
| title_full | Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble Model |
| title_fullStr | Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble Model |
| title_full_unstemmed | Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble Model |
| title_short | Constructing High-Resolution (10 km) Daily Diffuse Solar Radiation Dataset across China during 1982–2020 through Ensemble Model |
| title_sort | constructing high resolution 10 km daily diffuse solar radiation dataset across china during 1982 2020 through ensemble model |
| topic | diffuse solar radiation ensemble model reanalysis data machine learning China |
| url | https://www.mdpi.com/2072-4292/14/15/3695 |
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