Site-Adaptation for Correcting Satellite-Derived Solar Irradiance: Performance Comparison between Various Regressive and Distribution Mapping Techniques for Application in Daejeon, South Korea

Elvina Faustina Dhata, Chang Ki Kim (), Hyun-Goo Kim, Boyoung Kim and Myeongchan Oh
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Elvina Faustina Dhata: New and Renewable Energy Resource Map Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
Chang Ki Kim: New and Renewable Energy Resource Map Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
Hyun-Goo Kim: New and Renewable Energy Resource Map Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
Boyoung Kim: New and Renewable Energy Resource Map Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
Myeongchan Oh: New and Renewable Energy Resource Map Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea

Energies, 2022, vol. 15, issue 23, 1-20

Abstract: Satellite-derived solar irradiance is advantageous in solar resource assessment due to its high spatiotemporal availability, but its discrepancies to ground-observed values remain an issue for reliability. Site adaptation can be employed to correct these errors by using short-term high-quality ground-observed values. Recent studies have highlighted the benefits of the sequential procedure of a regressive and a distribution-mapping technique in comparison to their individual counterparts. In this paper, we attempted to improve the sequential procedure by using various distribution mapping techniques in addition to the previously proposed quantile mapping. We applied these site-adaptation techniques on the global horizontal irradiance (GHI) and direct normal irradiance (DNI) obtained from the UASIBS-KIER model in Daejeon, South Korea. The best technique, determined by a ranking methodology, can reduce the mean bias from −5.04% and 13.51% to −0.45% and −2.02% for GHI and DNI, respectively, and improve distribution similarity by 2.5 times and 4 times for GHI and DNI, respectively. Partial regression and residual plot analysis were attempted to examine our finding that the sequential procedure is better than individual techniques for GHI, whereas the opposite is true for DNI. This is an initial study to achieve generalized site-adaptation techniques for the UASIBS-KIER model output.

Keywords: site-adaptation; satellite-derived solar irradiance; UASIBS-KIER model; GHI; DNI; solar energy resource assessment (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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