A synergic study on estimating surface downward shortwave radiation from satellite data

Wang, Dongdong; Liang, Shunlin; Li, Ruohan; Jia, Aolin

doi:10.1016/j.rse.2021.112639

Cited by 18 publications

(3 citation statements)

References 57 publications

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“…It mainly uses the blue band of TOA reflectance which is available for most sensors and is less dependent on the additional atmospheric data which all ensure the high resolution, transferability, and continuity of the GeoNEX DSR algorithm. The extensive quality assessment of MCD18 showed that this algorithm is reliable, efficient, and highly accurate (Wang et al, 2021;Li et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

“…Downward shortwave radiation (DSR) is defined as solar radiation received at the Earth's surface within the wavelength range of 300-4000 nm. It is the fundamental driving force of many global ecological, hydrological, and biochemical processes (Huang et al, 2019;Wang et al, 2021;Liang et al, 2019) and provides one of the most promising renewable energy sources, solar energy. Photosynthetically active radiation (PAR) is the visible com-ponent of DSR in the spectral range of 400-700 nm.…”

Section: Introductionmentioning

confidence: 99%

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A GeoNEX-based high-spatiotemporal-resolution product of land surface downward shortwave radiation and photosynthetically active radiation

Wang

et al. 2023

Earth Syst. Sci. Data

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Abstract. Surface downward shortwave radiation (DSR) and photosynthetically active radiation (PAR) play critical roles in the Earth's surface processes. As the main inputs of various ecological, hydrological, carbon, and solar photovoltaic models, increasing requirements for high-spatiotemporal-resolution DSR and PAR estimation with high accuracy have been observed in recent years. However, few existing products satisfy all of these requirements. This study employed a well-established physical-based lookup table (LUT) approach to the GeoNEX gridded top-of-atmosphere bidirectional reflectance factor data acquired by the Advanced Himawari Imager (AHI) and Advanced Baseline Imager (ABI) sensors. It produced a data product of DSR and PAR over both AHI and ABI coverage at an hourly temporal step with a 1 km spatial resolution. GeoNEX DSR data were validated over 63 stations, and GeoNEX PAR data were validated over 27 stations. The validation showed that the new GeoNEX DSR and PAR products have accuracy higher than other existing products, with root mean square error (RMSE) of hourly GeoNEX DSR achieving 74.3 W m−2 (18.0 %), daily DSR estimation achieving 18.0 W m−2 (9.2 %), hourly GeoNEX PAR achieving 34.9 W m−2 (19.6 %), and daily PAR achieving 9.5 W m−2 (10.5 %). The study also demonstrated the application of the high-spatiotemporal-resolution GeoNEX DSR product in investigating the spatial heterogeneity and temporal variability of surface solar radiation. The data product can be freely accessed through the NASA Advanced Supercomputing Division GeoNEX data portal: https://data.nas.nasa.gov/geonex/geonexdata/GOES16/GEONEX-L2/DSR-PAR/ (last access: 12 March 2023) and https://data.nas.nasa.gov/geonex/geonexdata/HIMAWARI8/GEONEX-L2/DSR-PAR/ (last access: 12 March 2023) (https://doi.org/10.5281/zenodo.7023863; Wang and Li, 2022).

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A GeoNEX-based high-spatiotemporal-resolution product of land surface downward shortwave radiation and photosynthetically active radiation

Wang

et al. 2023

Earth Syst. Sci. Data

Self Cite

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show abstract

Section: Introductionmentioning

confidence: 99%

A GeoNEX-based high spatiotemporal resolution product of land surface downward shortwave radiation and photosynthetically active radiation

Wang²,

Wang³

et al. 2022

Preprint

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Abstract. Surface downward shortwave radiation (DSR) and photosynthetically active radiation (PAR) play critical roles in the Earth’s surface processes. As the main inputs of various ecological, hydrological, carbon, and solar photovoltaic models, increasing requirements for high spatiotemporal resolution DSR and PAR estimation with high accuracy have been observed in recent years. However, few existing products satisfy all of these requirements. This study employed a well-established physical-based look-up table (LUT) approach to the GeoNEX gridded top-of-atmosphere bidirectional reflectance factor data acquired by the Advanced Himawari Imager (AHI) and Advanced Baseline Imager (ABI) sensors. It produced a data product of DSR and PAR over both AHI and ABI coverage at an hourly temporal step with a 1 km spatial resolution. GeoNEX DSR data were validated over 63 stations, and GeoNEX PAR data were validated over 27 stations. The validation showed that the new GeoNEX DSR and PAR products have accuracy higher than other existing products, with root mean square error (RMSE) of hourly GeoNEX DSR achieving 74.3 W / m2 (18.0 %), daily DSR estimation achieving 18.0 W / m2 (9.2 %), hourly GeoNEX PAR achieving 34.9 W / m2 (19.6 %), and daily PAR achieving 9.5 W / m2 (10.5 %). The study also demonstrated the application of the high spatiotemporal resolution GeoNEX DSR product in investigating the spatial heterogeneity and temporal variability of surface solar radiation. The data product can be accessed through NASA Advanced Supercomputing Division GeoNEX data portal https://data.nas.nasa.gov/geonex/geonexdata/GOES16/GEONEX-L2/DSR-PAR/ and https://data.nas.nasa.gov/geonex/geonexdata/HIMAWARI8/GEONEX-L2/DSR-PAR/ (https://doi.org/10.5281/zenodo.7023863, Wang & Li, 2022).

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Hybrid model improves the ability to separate the diffuse component of minute-scale global solar radiation

Tan,

Wang,

Zhang

2024

Model. Earth Syst. Environ.

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A synergic study on estimating surface downward shortwave radiation from satellite data

Cited by 18 publications

References 57 publications

A GeoNEX-based high-spatiotemporal-resolution product of land surface downward shortwave radiation and photosynthetically active radiation

A GeoNEX-based high-spatiotemporal-resolution product of land surface downward shortwave radiation and photosynthetically active radiation

A GeoNEX-based high spatiotemporal resolution product of land surface downward shortwave radiation and photosynthetically active radiation

Hybrid model improves the ability to separate the diffuse component of minute-scale global solar radiation

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